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Calculation of equipment for heating water in a swimming pool. Types of heaters

The ambient temperature greatly influences the water temperature in an outdoor pool. At an air temperature of 18-20 degrees, a person still feels more or less comfortable, however, few people would want to swim at such a temperature. Often, such conditions during the warm period in the middle zone and to the north make up the lion's share. In this regard, the issue of heating water in the pool is relevant.

To eliminate problems with maintaining the required water temperature, the necessary heating equipment is selected already at the design stage. In this article we will help you get comfortable with this problem and choose the appropriate model based on type and power.

Water heating devices operate on the principle of heat transfer “from hot to cold”. The installations differ in the principle of obtaining heat for heating.

2. Heat exchangers

It consists of a housing, inside of which two circuits are mounted. The primary circuit (heating circuit) is designed to circulate water from the boiler. Secondary circuit - for circulating water from the pool. Heat exchange occurs between the circuits as follows. The pool water picks up heat from the water in the heat exchanger. The cooled water passes through the boiler again, is heated and returns to the heat exchanger to transfer heat to the water from the pool. And so on in a vicious circle until the water in the pool reaches the set temperature. Then, depending on the settings, the heater either turns off or continues to operate in the mode of maintaining the required temperature.

The time required to heat the water to the set temperature depends on the volume of the pool and the power of the heater.


Heat exchanger housing made from

  1. composite plastic,
  2. of stainless steel,
  3. titanium.

Heating circuit made from

  1. stainless steel (suitable for price/quality ratio for fresh water pools),
  2. titanium (for seawater pools),
  3. nickel,
  4. cupronickel.

The drop in heater performance in case of deviation from the specification data can be analyzed using graphs (diagram A, B)

3. Solar collectors (solar batteries)

They are heated by the sun's rays and this heat is used to heat the water in the pool. has a system of thin tubes.

4. Electric heaters

They are alternative devices to heat exchangers. Operating principle: a tubular electric heating element (TEH) is placed in the housing. It transfers heat to flowing water. There are no particular differences between the models.

When choosing an electric heater, the guideline is:

  1. output power,
  2. the material from which the body is made,
  3. the material from which the heating element is made.

When using sea water, heating elements are selected from titanium, nickel or cupronickel.

Installation features

The electric heater is connected to the circuit so that the incoming pipe is directed vertically downwards. In this case, the device will always be filled with water and even if the automation fails, the heating element will not burn out.

Practice shows that electric heaters are used for pools up to 12 cubic meters of open type and up to 20 cubic meters of closed type.

The task of maintaining the required temperature in the pool is not so easy to solve. The formula for calculating the heating time of water does not take into account its important feature - heat loss during evaporation. Because of this, heating the water takes longer, despite the fact that heating already takes a lot of time.

In this regard, the project includes heating aids:

  1. coating the pool walls with heat-insulating spraying,
  2. system use .

5. Heat pumps for heating water

Designed to cool or heat water in a swimming pool by converting atmospheric air energy into heat.

Installed outdoors.

Advantages

Very simple connection - just connect the water and power supply to the heat pump.

- embedded system automatically sets the optimal operating modes of the compressor and fan to obtain maximum efficiency by measuring the ratio of air temperature and coolant. Control is carried out by a digital remote control; there are several automatic settings for maintaining the temperature.

Installed sensors and protection systems: protection against low and high coolant pressure, high coolant temperature sensor, water flow sensor, low air temperature shutdown system, automatic defrosting system.

Conclusions:

1. Water-to-water heat exchangers, electric heaters and solar panels are mainly used to heat pool water. The latter option is used mainly as an additional heating source.

2. The choice of model is based on the heater power.

3. A saltwater pool requires a heater made of anti-corrosion materials.

4. It takes a long time to heat up the pool water

6. Procedure for calculating the operating time of the heat exchanger

Let's estimate the operating time of the heat exchanger for heating the pool. To do this, we will use the empirical formula (without taking into account deviations from the available power and heat losses):

t = 1.16 * V * T / P, where,

t - the required time in hours,

V is the volume of water in the pool in cubic meters,

T - required temperature difference in degrees,

P - declared power.

Calculation example.

Using this formula, we will calculate in advance the required heating time for your pool with a heat exchanger of the declared power. For example, the water in the pool is 20 degrees, but it needs to be heated to 26 degrees, i.e. by 6 degrees, with a pool volume of 30 cubic meters and a heat exchanger power of 6 kW.

t = 1.16 * 30 * 6 / 6, t = 34.8 hours.

7. Determination of the required heater power

Here are some generalized formulas for the correct selection of a water heater.

Determination of water heater power
Type and place of use of the water heater The value of the required water heater power

Heat exchanger for outdoor swimming pool (power in kW)

Equal to the volume of the pool (cubic meter)

Heat exchanger for indoor swimming pool (power in kW)

Equal to ¾ of the pool volume (cubic meter)

Electric heater for outdoor pool (power in kW)

Equal to ½ pool volume (cubic meter)

Electric heater for indoor pool (power in kW)

Equal to 1/3 of the pool volume (cubic meter)

Solar panels

The total area of ​​the collectors must be equal to the area of ​​the pool itself

Calculation of water heater power is described in various literature. We will use formulas from the book “Planung von Schwimmbadern” by C. Saunus

The power of the heat exchanger is determined from the conditions for the primary heating of water in the pool. Typically, the initial heating time is 2-4 days with continuous operation of the heater.

Qs = V*C*(tB - tK)/Za + Zu*S

Qs - heater power (W)

V - pool volume (l)

C - specific heat capacity of water, C = 1.163 (W/kgK)

tB - required water temperature (degrees Celsius)

tK - temperature of filled water (degrees Celsius)

S - water surface area (sq. meter)

Za - required heating time

Zu - heat loss (per hour)

When calculating using this formula, it is conditional - 1 kg = 1 liter.

Thus, we looked at modern devices for heating pool water. They have different operating principles, shape, technical characteristics and price. The choice of the right one for your pool is up to you, and you can also contact the specialists in our company and receive extremely competent advice.

How to heat water in a swimming pool is a question that arises among many owners who have created an artificial pond on their property. When setting up this issue, this issue is usually overlooked, and it arises only after the first attempts at operation. For comfortable swimming, the water temperature should be at least 22°C, for young children even higher - 28-30°C. Sunlight warms water rather slowly, especially in spring, and in some regions in early summer. Water, having heated up during the day, releases its temperature to the environment at night. The calories spent on heating fly into the atmosphere. Therefore, along with the pool heating device, it is advisable to take care of the thermal insulation of the structure.

Different ways to heat water

When installing a water heating system, the amount of heat required will depend on the volume of the pool. Heat is not free these days. Any attempt to heat water in a swimming pool at the dacha will require certain material costs for fuel or electricity.

All known and used methods can be divided into two groups:

  • temporary devices;
  • stationary structures.

Temporary devices include various designs and methods made from available materials for one-time or periodic heating of the pool. At the end of the swimming season they are usually dismantled.

An example is heating a swimming pool using a regular metal wheelbarrow. Firewood is loaded into it, lit, and the wheelbarrow is lowered into the pool. If the depth of the pool is greater than the height of the wheelbarrow, you can give it the necessary buoyancy using floats made from plastic bottles. In this way you can heat a small pool.

Stationary structures include:

  • Heat pump;
  • water heat exchangers;
  • solar panels;
  • storage or flow electric heaters.

Such devices are installed in the water circulation system and are used for their intended purpose throughout the entire period of operation.

It is quite difficult to make a heat pump with your own hands. An industrial product is very expensive. Only specialists can perform high-quality installation and commissioning work. For these reasons, a heat pump is used quite rarely, mainly for recreation areas of VIP-class cottages.

Installation of heat exchangers

The heat exchanger is a sealed container with a system of thin-walled copper or stainless steel tubes. Hot water from the heating system circulates inside the tubes, while cold water from the swimming pool circulation system circulates outside. Heating of the water in the pool occurs due to heat transfer. Some models of heat exchangers are equipped with an automatic system that regulates the heating temperature. The system consists of an additional pump, control valve and thermostat. The thermostat opens and closes the valve at the set temperature. During operation, the owner needs to set the temperature control knob to the desired value.

The power of various models of heat exchangers ranges from 10 to 200 kW. You need to choose a model with the required power based on the volume of water for the pool.

When putting the system into operation, it is advisable not to use the maximum parameters. Heating should occur gradually over a certain period of time. A sharp temperature change can affect both the performance of the heat exchanger and the pool. Especially if the interior surface is finished with tiles. Once the required temperature has been established in the pool, the heat exchanger will switch to the mode of maintaining the required parameters, and the heat consumption will sharply decrease. It is optimal to connect the device in the water circulation system between the pump and the water purification system so that reagents and filter material do not get into the containers.

The main problem when installing heat exchangers is the frequency of operation of the heating system. When the swimming season begins, the heating season usually ends. This drawback can be eliminated by installing a separate heating water circulation system. In the cold season, the heat exchanger must be disconnected from the heating system, and in the warm season, the heating must be turned off and the heat exchanger started. For a more rational use of heat during the construction of a swimming pool, it is advisable to arrange bottom heating using the “warm floor” type.

You can also use a combined design with heating elements built into the heat exchanger. For the initial heating of the pool, you can use all systems; electric heaters can be used to maintain the temperature. In the absence of heat exchangers with combined heating, you can install a separate electric water heater for a flow-type pool before or after the heat exchanger.

Devices of various designs are available for sale, with horizontal or vertical installation, with a body made of titanium or stainless steel. You can install all devices of this type for heating a pool yourself without any problems.

Solar panels for the pool

Heating of pool water in areas with a lot of sunny days can be done using solar collectors. These systems have been known for quite a long time, but have received practical application in recent years due to the widespread rise in prices for energy resources. The use of such systems is especially important for summer cottages with limited power consumption and a low-power heating system. (Fig.1)

The solar collector functions quite simply. The device is a system of tubes, connecting manifolds and screens. The entire structure is painted matte black. The metal warms up under the sun's rays and transfers heat to the water circulating through the tubes. Operating experience has shown that water can heat up to a temperature of 140°C. Such a heater can provide not only heating for the pool, but also hot water supply in the house. For optimal performance, industrial products are equipped with an automation system. When heated to a certain temperature, the circulation pump turns on, pumping water into the storage tank. When installing a storage tank above the solar collector, the system can work independently, due to the different densities of hot and cold water. To arrange a swimming pool heated by a solar collector, you need to create an additional water circulation system from a storage tank.

The performance of industrial modules allows heating systems with water up to 30 m 3 . This volume is quite enough to heat a small pool with your own hands and provide hot water supply to the cottage. With a larger pool volume, you need to increase the number of blocks.

Various automation systems allow water to be redirected through different pipelines. This scheme optimizes the hot water supply system and heating for the pool.

The disadvantage of using solar collectors is that productivity decreases on cloudy and rainy days.

Flow-through electric heaters

The easiest way to heat the water in the pool seems to be using instantaneous electric water heaters. (Fig. 2) Everything seems to be quite easy - install the heater in the circulation system, start the pump, plug it in, press the button if available. Moreover, the heaters are designed to work with a continuous flow of water, have small sizes, and convenient connecting fittings. The body is made of materials of high strength and reliability; the heating elements have a stainless steel shell. An example is the Intex brand heaters.

Despite all of the above, flow-through heaters have obvious advantages:

  • higher heating rate;
  • Temperature regulator;
  • water pressure control (protection function);
  • ease of installation.

Therefore, before installing a flow-through heater, it is advisable to carefully weigh all the factors and think about an alternative method of heating the pool.

In addition to the methods described, there are various possibilities to arrange heating in the pool yourself.

When creating your own device and method, you need to remember about the safety of the work, your own safety and that of your loved ones.

Even the use of industrial devices in emergency situations can lead to electric shock and accidents of varying severity.

Heating pool water with a heat pump

Heating swimming pool water is an ideal application for air-to-water heat pumps. (It is no coincidence that the supply of this equipment is growing literally before our eyes.) After all, the temperature to which the water needs to be heated is low - no more than 30 ° C. An air source heat pump successfully copes with this task even at fairly low outside temperatures. In addition, the smaller the difference between the temperature of the heat source and the heated water, the higher the efficiency of the heat pump.

Let us recall that a heat pump is a device that collects and directs heat dissipated in the surrounding space - in water, air, and soil - to useful needs. Thanks to this, for every kilowatt-hour of electricity spent on the heat pump, you can get four or more kilowatt-hours of heat. Removing energy from the air is technically the simplest way to use dissipated heat, which does not require drilling wells, digging trenches, etc.

You can organize heating of the pool water using a conventional heat pump - according to a dual-circuit scheme, using an additional water-to-water heat exchanger. It is better to use special models for direct connection to the water recirculation line. They are equipped with built-in titanium heat exchangers and, as a rule, allow heating of salt water.

The majority of the supply of air heat pumps for swimming pools consists of monoblock devices for outdoor installation, designed to operate at air temperatures from +5 ° C. This is quite enough for operating a home pond in the summer and in the off-season. But it’s not difficult to find a model for year-round use, designed for temperatures down to -10... -15 °C.

Typically, a private pool heat pump does not require three-phase power. And the electrical power consumed by the device allows it to easily fit into the limits allocated by power engineers.

Monoblock air heat pumps are installed in close proximity to the pool, without long pipelines. They are easily and quickly installed in a water treatment line, usually using pipes and fittings made of PVC.

As a rule, when used year-round in our conditions, a heat pump needs the support of an additional heat source, which is switched on during cold winter days.

Part of the load on the heat supply of an indoor pool can be covered by recycling the heat of the internal air, including when it is dehumidified.

Read more about heat pumps here:

Heating the water in the pool using a helium unit!

Of course, heating the pool water cannot be done without using solar energy, which is practically free. For foreign experts, the presence of a swimming pool with a “mirror” with an area of ​​more than 30 m2 is even one of the criteria that the house should be equipped with a solar water heating system.

Single- and double-circuit water heating installations can be mounted on the basis of solar collectors. The former involve supplying heated water directly to the collector, the latter - hydraulic separation of heat collection and consumption circuits. Single-circuit solar installations are designed for seasonal operation: at sub-zero temperatures, solar collectors and other system elements located outside the house will be damaged when the water in them freezes. In double-circuit collectors, antifreeze circulates through solar collectors, and they are used year-round.

If the house is equipped with a double-circuit solar heating system, then the pool can be one of the consumers of the heat collected by the collectors. In this case, a heat exchanger made of high-quality stainless steel is built into a storage tank, which is usually equipped with a solar installation. This allows you to reduce the fuel consumption of the heating boiler, solve the problem of lack of power, and reduce the operating time of the main heat generator.

Currently common flat and vacuum solar collectors are made on the basis of copper tubes. Therefore, they cannot be considered as standard equipment for directly heating water treated with chemical reagents. In order for such a collector to serve for a long time, it must be connected using a dual-circuit circuit. A simple and inexpensive solar installation for seasonal use can be mounted using plastic solar collectors. Such devices have different designs - from a flat container to a set of tubes connected according to a manifold circuit. They are mainly made of polypropylene or polyethylene, painting the plastic black. The chemical inertness of the structural material allows the use of plastic collectors in flow-through mode. To ensure that pumping large volumes of water does not require excessive energy consumption, flow-through collectors must have low hydraulic resistance. If necessary, it is easy to build a system with natural water circulation on their basis.

The design of plastic manifolds does not provide them with the same high efficiency as their flat and vacuum “brothers”. Large heat losses due to the lack of glazing reduce their performance in bad weather and make the use of collectors unprofitable in the cold season. But in the summer season it is more than justified.

The total area of ​​plastic collectors for an outdoor pool should be approximately 70% of its “mirror”.

Solar collectors are best used in combination with a heat pump that is activated in cloudy weather.

To save means to save

The amount of heat required to maintain a given water temperature (and therefore the power of the heater) is determined by the thermal losses of the pool, which occur as a result of convection (with the flow of heated air), conduction (when media with different temperatures come into contact) and radiation. In addition to those listed, another type of heat loss occurs in the pool - during the evaporation of water from its surface. In addition to the fact that the transition of water from a liquid state to steam is itself accompanied by the absorption of heat, there is also a need to replenish the pool with fresh water (and it has to be heated). Heat loss is reduced by covering the surface of the outdoor pool when it is not in use. For this purpose, floating polymer coatings (“bedspreads”) or special blinds are used. The energy-saving effect of their use can reach 50% or more. There are blankets that are transparent to the sun's rays, the energy of which will be transferred to the water. During the cold season, the outdoor pool in use is protected with a heat-insulating coating.

Indoor pools will also benefit from a protective coating. The rate of water evaporation depends on the temperature and humidity of the air in the room, and the intensity of its movement above the water surface. So, reducing heat losses in indoor pools is directly related to solving heating, ventilation and air conditioning issues. Thermal insulation of the bowl (this is also true for outdoor pools used not only in summer) and the building itself is also important.

The question of how to heat the water in the pool must be decided at the stage of its construction. It is then that it is necessary to insulate the bottom and walls. And although most of the heat “leaves” with the evaporation of water and radiation from the surface into the colder atmosphere, without these measures it is impossible to achieve an effective and inexpensive (relatively) increase in temperature. Anyone who has an inflatable or frame pool, standing on a sand bed or on a lawn, while cleaning the pool, probably noticed: the ground underneath is simply icy. This is where the heat goes. So thermal insulation of the bottom and walls is not at all an excess. Therefore, pay more attention to this issue.

Sometimes you want to have warm water in the pool

In general, in any store that sells swimming pools and equipment, there will also be devices for heating water. These are heat exchangers connected to a source of warm water (into the DHW circuit of a heating system or boiler), heat pumps, electric heaters (storage and flow-through), solar systems.

Heat exchangers for swimming pools

This is what one of the pool heat exchangers looks like

This is a metal cylinder through which hot water flows. It is connected to a hot water source. Often this is a boiler hot water heating circuit or an instantaneous water heater. There may be other sources. Who will adapt how?

Here the question immediately arises: why do we need the heat exchanger itself? After all, you can directly take water from the pool, supply it to the heater and discharge the heated water. In principle, such a scheme is possible, but the problem is that the water in the pool contains many different impurities: from chlorine and chemicals to various tiny suspended particles. So with this scheme the heat exchanger will quickly clog.

Another point is that in open air the reservoir contains a fairly large amount of oxygen, due to which the heat exchanger in the boiler or flow-through heater will quickly oxidize and fail. That is why a small volume of coolant is circulated through a loop with a special heat exchanger for the pool.

One type of heat exchanger is a coil. You can make it yourself, and also connect it to the system with your own hands. For those who did heating in the house, this is not a problem. But coils are effective only on small volumes. They will warm up a small pool for children in a short period of time, but they won’t be able to handle a dozen cubes.

Scheme of organizing water heating in the pool

Electric heaters

Electric pool heaters are ordinary water heating elements with high-power thermostats. They are of the accumulative type - this is when water is pumped into a tank of a sufficiently large volume, where heating elements are installed, and from there it is removed, but at a much higher temperature.

Instantaneous electric pool water heater

Electric pool heaters are also of the flow-through type. It is built into the pool water treatment system after the filter. Purified water is supplied to it, and then, after heating, it enters the pool through nozzles.

Electric pool heaters can operate on a 220 V or 380 V network. This largely depends on the power. It is calculated as follows: for outdoor pools, 0.5-1 kW is taken per cubic meter, for indoor pools - 0.3-0.5 kW.

Since the volumes of water are large, heating costs are also more than significant. You need to heat tons of water, which requires high power and, accordingly, high energy costs. Plus, not every site has the opportunity to additionally turn on 3-18 kW of electrical equipment. And this is in addition to everything that works in the house, as well as the equipment that is necessary to maintain the pool, although it (not counting the electric water heater) “draws” a little.

Heat pumps for heating water

Heat pumps take heat from external heat sources, convert it and transfer it to the heated environment. To increase the temperature of the water in the pool, air-to-water devices are often used. In this case, energy is taken from the air and transferred to water.

Externally, the device resembles an air conditioner. Most of these devices are so automated that once you connect it, set the mode and desired temperatures, you don’t touch it again. Control is possible from a remote control or a panel on the case.

The heat pump looks like the outdoor unit of an air conditioner

Heat pumps operate from a 220 V network and consume 1-2 kW depending on the power generated. But in this case the energy is not used to heat water, but not to pump heat from one medium to another - it is needed to operate the motor and compressors. By spending only 1-2 kW, you can get 5-12 kW - depending on the type of system.

Like most automated and technologically complex devices, heat pumps cost a lot. About 130-180 thousand rubles.

Solar systems

To heat the water in the pool, it is not always enough just sunlight falling on the surface. But you can use solar heat from other surfaces. For this purpose, solar systems - collectors and vacuum tubes - have long been used. Tubular heaters are more efficient, but collectors of sufficient area can provide the required temperature. True, large areas are needed, but a lot of water is heated.

Solar pool heating is effective on clear days

For indoor pools, the size of solar collectors should be about 60-70% of the surface of the pool's water surface, for open ones - 80-100%. Then the water will be warm. But only on a sunny day. This is one of the main disadvantages of solar systems. The second is the considerable cost of the devices. Smaller than heat pumps, but still sufficient, especially considering that larger devices are needed.

But solar collectors are not difficult to make with your own hands: the materials are available, the technology is simple, there are plenty of examples. One of them is presented in the video. But the area will be too small for this pool. In order for the heating to be significant, several of these are needed. Anyone can make such a water heater with their own hands. With no exceptions.

There is an inexpensive surface solar heater for the pool "Intex". This is a two-layer black PVC film, welded in such a way that a labyrinth for water is formed in it. This mat, which floats on the surface of the pool, is supplied with water by a pump. Walking through the labyrinth, it heats up due to the fact that the black surface absorbs heat well. It comes out already having a much higher temperature. For greater efficiency, water is taken from the bottom of the pool, where the water is colder.

Floating rubber solar collector. Very inexpensive option

This water heater can be used in swimming pools that are located in open, sunny areas. Suitable for pools with a volume of no more than 30 m3; the temperature can be increased by 3-5° depending on the weather.

Do-it-yourself heating of pool water

A swimming pool, even if it is not very large, is not a cheap pleasure. But without heating the water, it is far from always comfortable. Not everyone has the means or desire to buy equally expensive devices to raise the water temperature. So homemade craftsmen come up with different pool heaters that don’t require a lot of money.

The most accessible fuel we have is firewood. And it would be strange if there were no means of heating the pool with wood. We have not seen any industrial analogues, except perhaps adapting a wood-burning stove with a water jacket for this purpose. And there are a lot of homemade units.

The basis of all water heating devices in wood-fired pools is a coil

The main idea is that a metal coil is located inside the firebox, and water from the pool is supplied to the inlet using a pump. Passing through a coil heated by a flame, it heats up and is discharged back through a second hose or pipe.

One of the DIY devices for heating pool water with wood

The main task is to select the water supply speed so that it does not boil in the pipe under any conditions. Therefore, it is advisable to take a pump that is powerful enough. You can use a standard pool pump or a circulation pump.

Quite risky, witty

There are several such devices in the photo. In one, the coil is hidden in a tank in which the fire is built. Smoke is discharged through a hole in the lid. The system will be more efficient if you make a chimney. You can use the heat even more fully if you make a water jacket. It can be on the body, it can be on the chimney, or it can be both here and there.

In another option, a square container is welded for a small inflatable pool. The principle is the same. The implementation is a little different.

A square container with a coil and a fire inside

There is an even simpler option: a coil, inside of which a fire is built. This device can even be used while hiking. Only somehow it will be necessary to solve the problem of discharging hot water. It is possible to use heat-resistant hoses or a piece of metal-plastic pipe for heating.

It’s very convenient when hiking or traveling - you are always provided with warm water

There is an example of making an electric pool heater with your own hands. A heating element was used for the boiler, and an original design was invented for fixing it in the body of an old car foot pump.

A very simple and interesting way to make solar heating of pool water more efficient. It requires a minimum of money and a little time. You will need plastic hula hoops, thick black film, a soldering iron, and a knife.

The idea is not new: a black film floating on the surface of the water heats up and transfers heat to the water. Heating is more efficient since dark objects absorb more solar energy.

Very simple hula hoop solar light collectors with welded black film

The work consists of the following: lay the film evenly on the hula hoop, and use a soldering iron to fuse the plastic and the film pointwise. It is advisable not to burn the hoop, as it should float and not sink. Melt in a circle, with a distance of 10-15 cm. The film should hold quite tightly. You need to make several holes in the middle - you don’t want air to get in. Therefore, you need to turn the hoops with the side into the water on which the film is stretched.

These circles are laid out on the surface. The larger the area they occupy, the faster they heat the water. They are easy to lay out - scattered on the surface. Collect them too - they drove them in one direction and stacked them at the side.

Heat preservation

It’s clear how to heat water in a pool. There are both factory and homemade heaters. But it is no less important to preserve it. Most of the heat leaves the water at night. The main task is to reduce losses. They do this by installing a canopy over the pool. It can be stationary, sliding, folding, etc.

If a canopy, for some reason, is not an option, you can reduce losses with the help of a blanket. There are films floating on the surface. They have many air bubbles and an opaque surface. The film is spread on the surface in the evening and removed after the water has reached a comfortable temperature.

In addition to floating films, there are awnings that are placed on top of the structure. But they are quite inconvenient - even if the pool is three meters wide, pulling or rolling up the awning alone is quite problematic. But there are not always helpers. However, you can also use awnings - they are quite effective. Moreover, they can easily be replaced by, say, a piece of tarpaulin, thick (preferably opaque) film, etc.

For a rectangular pool, to make it easier to straighten and assemble the awning, light slats can be attached along one of the sides (short) at a distance of 1-1.5 meters. Then holding on to the slats makes it easier to lay out and assemble the blanket.

You can make something like this shelter from film and planks

Do-it-yourself pool heating using electric, solar heaters, wood-fired coil


Contrast procedures are wonderful, but when the sauna is not heated, you want warm water. You can do the heating of an outdoor pool with your own hands, using

We select equipment for heating water in the pool

You need to think about how to heat the water in the pool at the stage of its design, because all the technological elements of this system are interconnected. Experts recommend installing heating devices in conjunction with other pool equipment, but even if such work has not been carried out, a heating system can be installed later.

It is worth noting that the water temperature in pools for adults should be no lower than 24-26 degrees, and for children this parameter is even higher - at least 30 degrees.

Methods for heating water in an artificial reservoir

There are four ways to heat pool water:

  1. Flow-through electric heaters
  2. Heat exchangers
  3. Solar collectors
  4. Heat pumps

The choice of equipment depends on several factors:

  • pool volume
  • amount of water for regular heating
  • features of communications in the house
  • depending on the customer's preferences.

So, in order to find out what type of heating equipment will fit most harmoniously into the system of your pool, we will analyze each one “piece by piece”.

Instantaneous electric heaters for small pools

Flow-through electric heaters are the simplest and relatively inexpensive way to heat pool water. They are designed to heat a continuous flow of liquid with the lowest possible pressure drop. This type of heating equipment has compact dimensions, so its installation does not require a large technical room. A small covered booth will be just right.

The housing of electric heaters is made of high-quality plastic, titanium or stainless steel, and the heating elements themselves are made of a stainless steel alloy that can withstand fairly high temperatures.

When choosing a flow-through heater, keep in mind that its power must correspond to the volume of water in the pool: a small and shallow pool located in a heated room does not require the purchase of a large and powerful unit; 3 kW will be enough for it.

Although, if we talk about power, flow-through electric heaters cannot boast of this parameter - the maximum they can squeeze out of themselves is 18 kW, which is clearly not enough for a large outdoor pool. So, if your pool has a volume of more than 36 cubic meters. meters and it is located on the street, then the purchase of such equipment will be an unjustified waste of money, because even the most powerful of the range of electric heaters will not cope with the task assigned to it.

In addition, the house may have restrictions on energy consumption or the wiring does not meet all the requirements, then there is no point in installing such a unit either.

Advantages of instantaneous electric heaters:

  • fast heating of the pool
  • possibility of temperature regulation via thermostats
  • the presence in some models of a flow sensor that turns off heating in the absence of water circulation
  • automated control system
  • small sizes
  • low power
  • high electricity bills
  • impossibility of installation in houses with limited energy consumption

Heat exchangers - simple, economical equipment

Heat exchangers (in principle, this is clear from their name), unlike electric heaters, do not consume electricity. The principle of their operation is to heat the water in the pool by connecting to the general heating system of the house.

This unit is a flask with a coil inside it through which hot water moves. This water enters the heater from the heating system using a circulation pump, the operation of which is regulated by a special valve. In turn, the valve is regulated by a thermostat. The coil itself is washed with cold water from the pool. In principle, everything is very simple and clear.

The owner of all this equipment can only set the temperature he needs on the thermostat, and the automation will do the rest for him.

The power of heat exchangers can range from 13 to 200 kW, which is significantly more than that of electric heaters. The choice of power in this case depends on the volume of water in the pool, because the more water there is, the longer the heater must operate.

The first heating of water using a heat exchanger lasts approximately 28 hours at its maximum possible power. This is necessary in order to avoid instrumental collapse (structural changes in the heater body and its internal elements), which can occur due to water heating up too quickly.

After the first start-up, the unit will only have to maintain the required temperature, which significantly saves money.

As a rule, the heat exchanger is located between the pumping station and the disinfection system to avoid breakdowns due to the presence of chlorine in the water. If the water is too chlorinated, it is recommended to install titanium heat exchangers.

  • significant cost savings
  • Ease of Management
  • high power

Solar collector (solar system)

The sun is an inexhaustible source of energy, but they tamed it quite recently and immediately found use - they began to heat houses, apartments, warehouses and finally got to swimming pools.

Of course, the water in the pool can itself heat up under the rays of the scorching sun, but what if your pool is under a canopy or indoors? Then the sun is coming to you!

Solar systems or solar collectors are modules of cones, tubes or screens that receive rays. Each module individually is capable of heating up to 30 cubic meters. meters of water, which means the larger the volume of your pool, the more modules you need.

The principle of operation of the collector: the sun's rays falling on the collector, which is usually black, are completely absorbed by it. The coolant located inside the collector heats up to 140 degrees, and after that the circulation pump, which is located in the storage tank, starts. Naturally, the water in it becomes hot almost instantly and can be used both for a swimming pool and for heating and hot water supply at home.

There are models of collectors that have built-in sensors and an automatic three-way valve, with the help of which water is automatically directed to the heat exchanger. When the desired temperature is reached, the water will pass past the heat exchanger, gradually cooling down. And having reached its minimum value (it is set by the owner of the pool), water will again flow into the heat exchanger and the system will start again.

Advantages of solar collectors:

  • fast water heating
  • convenient control system
  • versatility of use: for heating rooms, for heating water in a swimming pool, for supplying the house with hot water
  • in cloudy weather, the efficiency of the collectors decreases, thereby reducing the heat transfer coefficient

Heat pumps: power and speed

Heat pumps are a new and rather unpopular (yet) method for heating pool water in Russia. The lack of interest on the part of buyers can be explained simply - the high price of this type of heater.

Heat pumps operate on the principle of multi-stage heat transfer from different coolants using condensate, compression of different gases, etc.

The initial source of heat can be domestic and industrial wastewater after treatment, heat from thermal and groundwater, water from lakes, rivers, heat that is released during the purification of flue gases, and in general any heat sources whose temperature is at least one or two degrees higher than water in the pool.

Operating principle: a working fluid, for example, a mixture of water and antifreeze, is pumped through an external pipeline located underground using a circulation pump. At the outlet of the pipe, this liquid becomes several degrees warmer due to the temperature of the soil. After this, the mixture is sent to a heat exchanger (evaporator) where it gives up its heat to the refrigerant, which instantly boils (barely lukewarm water is enough for it) and turns into steam. This steam enters the compressor, which compresses it to 20-25 atmospheres. During this process, there is a sharp increase in temperature to 55 degrees.

It is this energy that is subsequently used to heat the house or heat the water in the pool.

This system works in a vicious circle: when the working fluid and refrigerant have fulfilled their purpose, they, having passed through the cooling stages, meet again to start the cycle again. Thus, it turns out that the main share of energy is spent on the operation of the compressor itself.

The power of heat pumps allows not only to warm up swimming pools, but also to provide heat to huge cottages with an area of ​​up to 300 square meters. meters.

Advantages of heat pumps:

  • high power
  • fast water heating and room heating
  • use of free energy sources (heat of the earth, water, waste water, etc.)

Well, now you know how to heat a pool and what you can use to do this. All that remains is to weigh the pros and cons and make the right choice. Good luck with your construction and renovation!

How to heat water in a pool - special devices and methods


Devices for heating pool water and their types, advantages and disadvantages of each. Flow-through electric heaters, heat exchangers, solar collectors and more

Water heater for a pool: how to heat water in a pool at the cottage

Maintaining optimal temperature in the pool is a very important point, especially if you plan to swim in it outdoors and not only during the hot season. If we are talking about equipment such as a water heater for a swimming pool: how to heat water in a swimming pool at the dacha with maximum efficiency is a pressing question for many summer residents. This can be done using various types of special equipment.

Heat pump - an effective device for heating pool water

What types of heaters are there?

With the arrival of the summer season, owners of sealed ponds and reservoirs in their summer cottage will sooner or later be faced with the question: how to heat the water in the pool with your own hands? To do this, one of the following options can be used:

If small children will swim in the pool, the water temperature should be increased to 30°C

Each type of equipment has its own operating characteristics and also has advantages and disadvantages. Choosing the type of heater depends not only on the volume of the pool, but also on the features of communications in the summer cottage, the amount of water that will need to be heated regularly and personal preferences.

Features of flow heaters

Tankless pool heaters are one of the most economical and easy-to-use options. They heat running water with small pressure drops, boast compact dimensions and ease of installation. And to install a flow-through heater, you will only need to equip a small booth on the site. This type of housing is made of plastic, stainless steel or titanium, and the heating element is made of a special stainless steel alloy that can withstand high temperatures. Thanks to this, the flow heater is durable and resistant to various types of negative influences.

Instantaneous heater for heating pool water

The maximum power of the instantaneous heater is 18 kW, so it is a good choice for small pools. However, if you are the happy owner of a tank with a volume of more than 36 m³, then buying a flow-type device does not make sense.

Helpful advice!

If the water in the pool is too cold, swimming is not particularly pleasant, and the risk of colds is quite high

Electric instantaneous pool heaters boast the following advantages:

  • compact dimensions.

It is important that the water temperature in the pool is comfortable, especially if children swim in it.

Installation diagram of a heat exchanger for heating water in a pool

The water temperature in the pool must be maintained taking into account the air temperature

If you want to know how to heat the water in a pool using a heat exchanger and optimally position it, then you need to do this in such a way as to avoid equipment breakdowns due to the presence of chlorine in the water. This means that the unit must be installed between the disinfection system and the pumping station. If there is too much chlorine in the water, then it is better if the heater is made of titanium; it withstands long-term exposure to an aggressive environment.

It is worth buying a pool heater that operates on the principle of a heat exchanger because of the following advantages:

  • ease of operation.

The only drawback of this type of heater is the long time it takes to heat water when first started. But later you won’t have to wait long, since the temperature you set will be maintained automatically.

Heating water using the sun

Of course, the outdoor pool itself warms up under the influence of sunlight. But this process can be accelerated if you use a solar collector or solar system. This type of heater is a system of flasks, screens or pipes that receive the sun's rays and convert them into thermal energy.

Helpful advice!

Solar collector for heating pool water

The solar collector works on the principle of absorption of solar rays by the surface. Inside the device there is a coolant that warms up to a temperature of 140°C. After this, the circulation pump in the pool water heater starts. The advantage of such a system is that it can be used not only to heat water in a swimming pool, but also as a heating system for a private home.

If the water temperature in the pool is comfortable, you can swim on a cool day

The benefits of solar pool heaters are as follows:

If you read user reviews about the Intex solar pool heater on the Internet, you can understand that the only serious drawback of such a water heating system is that in cloudy weather the efficiency decreases and the heat exchanger does not work as efficiently. This means that it is advisable to install a solar system where there are more sunny days a year than cloudy ones.

Main types of solar collectors for swimming pools

Heat pumps as a new heating technology

One innovation in terms of how to heat pool water is the heat pump. This type of equipment is far from the most popular due to its fairly high price, but in terms of efficiency it can compete with all other options.

The operating principle of a heat pump is quite complex and is based on multi-stage heat transfer from different sources. The initial source of heat for the pump can be groundwater or thermal springs, flue gases, and in general anything that is at least a little warmer than the water in the pool.

The structure of a heat pump for heating water in a swimming pool

The external piping of the heat pump is located underground. Using a circulation pump, a working fluid is driven through it, which is heated by several degrees due to the ambient temperature. The liquid then enters the evaporator, where it heats the refrigerant. The latter instantly boils and transforms into steam, which, in turn, enters the compressor.

The compressor compresses steam to 20-25 atmospheres, resulting in the release of a large amount of thermal energy. It is this energy that is used to heat the water in the pool.

How to heat the water in a swimming pool at the dacha so that the energy from the heater is also enough for other needs? To do this, just fork out a little and install a heat pump. The system works so efficiently that it can easily heat private houses with an area of ​​up to 300 m². In addition, the system operates in a circle, that is, the working fluid, after releasing the accumulated heat, cools and circulates again through the pipeline.

You can maintain the water temperature in the pool at the optimal level using a heating blanket

If you are interested in the question of how to quickly heat water in a pool using a heat pump, then you should know its advantages:

  • very high power;
  • Free energy sources are used to heat water, which allows you to significantly save money;
  • The water heats up in a very short time.

The disadvantage of such a system is its high cost. For the same money you can buy several instantaneous water heaters for the pool.

Helpful advice! If you think that a heat pump is a waste of money, then think about how much money you will save by using free energy sources. This is especially true if you use the system not only to heat water, but also to heat a large private house.

The principle of operation of a heat pump for heating pool water

Wood or gas water heater for a pool: how to heat water in a swimming pool at the dacha

Wood-burning pool heaters are one of the simplest and most economical designs. Essentially, it is a spiral along which water moves. A fire is lit under the spiral, it heats up and gives off heat to the water. You can use not only firewood as fuel, but also peat, dry waste, coal and much more. This type of unit is good because it can be used in suburban areas where there is no electricity or gas. The pump, which is responsible for circulating water in the spiral, can be powered by an independent generator.

When purchasing a wood-burning pool heater, the main selection criterion is its power. It directly depends on the dimensions of the heat exchanger, as well as on the type of fuel used. Most models allow you to regulate the intensity of combustion, and you can easily connect a wood-burning unit without special skills.

Installation diagram of a gas heater for a swimming pool

Advantages of a wood heater:

  1. Saving money by using cheap fuel.
  2. Easy to use.
  3. Fast water heating.
  4. Ease of installation.

The disadvantage of heating the water in the pool with your own hands using a wood-burning unit is the lack of automatic systems. This means that the system must be constantly monitored, the fire must be maintained in it, and it must not be allowed to go out. Also, the lack of an automatic thermostat means you won't be able to accurately set the temperature you want the water to heat to.

Gas pool heaters differ fundamentally from wood heaters only in that they use natural gas as fuel. This makes the system a little easier to operate and allows you to leave it without constant supervision. The advantage of a gas heater is its relatively low cost, but in this case your gas bills will be considerable, so before purchasing you should think about whether you need this type of heater.

Heating blanket

Separately, it is worth mentioning such an interesting type as a heating blanket for a swimming pool. Essentially, this is a special cover that can be made of polyethylene or tarpaulin, and also made in the form of blinds. Special heating blankets for Intex pools not only prevent leaves and other debris from getting into the water, but also accumulate solar energy to heat the water. Of course, using a blanket cannot heat water as effectively as using flow-through or storage heaters, but it does raise the temperature by several degrees.

Heating blanket for swimming pool Intex

Device selection criteria

When choosing a pool heater (Intex, Bestway, Behncke or any other company), you should consider a number of general parameters.

Power. This parameter depends on the size of the pool and the amount of water that will need to be heated. Also, the power of the heater directly affects the rate of temperature rise. For example, the Intex pool water heater has a power of 3 kW, and the Bestway pool heater has a power of 2.8 kW. You can calculate the power required for effective heating using a very simple formula: the volume of the pool is divided by two.

Heating method. Instantaneous water heaters are a popular option if you need to heat water in a pool at your dacha. As a rule, the main advantage of any flow-through heater is its relatively small size, due to which such a device can be installed in a small area. The principle of operation of a flow-through system is that water passes through a heating element, which gives off heat to it. Most of these systems operate in cycles. A flow-through model, for example, an Intex pool heater, is good for small tanks, the water for which is taken from a central water supply system, a well or a well.

Water temperature is one of the key components of comfort in the pool

Energy source used. Here you need to take into account the availability of a particular fuel, as well as your financial capabilities. For example, a solar-powered unit is the most efficient, but it is quite expensive, and it does not make sense to use it in areas where there are more cloudy days than sunny days.

Of course, you can always assemble a pool water heater with your own hands; there are a sufficient number of ready-made diagrams for this on the Internet. However, purchasing a factory-made product will allow you not only to save time and effort, but also to receive a reliable and durable device with the possibility of warranty service.

Water heater for a pool: how to heat water in a pool at the cottage


Water heater for a pool: how to heat water in a swimming pool at the dacha. Popular types of heaters, flow systems. Unit selection criteria.

Pool water heater: how to heat a pool

How to heat a pool:let's consider pool water heater. After all, maintaining the optimal temperature in the pool is a very important point, especially if you plan to swim in it in the fresh air and not only in the hot season. We are talking about equipment such as pool water heater: how to heat water in a swimming pool at the dacha with maximum efficiency - a pressing issue for many summer residents. This can be done using various types of special equipment.

A heat pump is an effective device for heating the pool water

Types of water heaters

With the arrival of the summer season, sooner or later the owners of sealed reservoirs and reservoirs in their summer cottage will inevitably face the question: How heat the water in the pool with your own hands? To do this, one of the following options can be used:

  1. Heat exchanger.
  2. Solar collector.
  3. Heat pump.
  4. Flow-through electric heater.
  5. Wood heater.
  6. Gas heater.

In the children's pool, the water temperature should be increased to 30°C

Each type of equipment has its own operating characteristics and also has advantages and disadvantages. Choosing the type of heater depends not only on the volume swimming pool, but also on the characteristics of communications at the dacha, the amount of water that will need to be heated regularly and personal preferences.

Characteristics of flow heaters

Flow-through pool water heaters- These are one of the most economical and easy-to-use options. They heat running water with small pressure drops, boast compact dimensions and ease of installation. And to install a flow-through heater, you will only need to equip a small booth on the site. This type of housing is made of plastic, stainless steel or titanium, and the heating element is made of a special stainless steel alloy that can withstand high temperatures. Thereby instantaneous heater It is durable and resistant to various types of negative influences.

Flow heater for heating water in the pool

The power of the model must correspond to the volume of water that will need to be heated. This means that to heat water in a small pool with shallow depth you only need 3 kW of power, but for a large tank you will need a more powerful unit.

Maximum power flow heater is 18 kW, so it will be a good choice for small pools. However, if you are the happy owner of a tank with a volume of more than 36 m³, then buying a flow-type device does not make sense.

Helpful advice! Purchasing this model will also be inappropriate if your home has restrictions on electricity consumption or weak wiring.

If the pool water is too cold, swimming is not particularly pleasant, and the risk of colds is quite high

Electrical instantaneous water heaters for pools boast the following advantages:

  • quickly heat water in a small tank;
  • some models have a flow sensor that turns off water heating if it does not circulate;
  • the temperature can be adjusted using built-in thermostats;
  • there is an automatic control system;
  • compact dimensions.

It is important that pool water temperature was comfortable, especially if children bathe in it

They also have disadvantages:

  • impossibility of installation with limited power consumption or weak wiring;
  • low power levels;
  • high power consumption.

Heating water in swimming pools using a heat exchanger

A heat exchanger is a heater option that does not consume electricity at all. It connects to the general heating system of the house and uses heat from there. The design of this model is extremely simple. The body is a flask in which the coil is located. It receives water from the heating system using a circulation pump. The coil is washed with cold water, which heats up as a result. This simple design guarantees the reliability and durability of the unit.

Heat exchanger installation diagram for heating the pool water

When installing a heat exchanger, you will only need to set the required temperature on the thermostat, and it will be maintained using automatic systems. A nice feature of the heat exchanger is its high power level, it can range from 13 to 200 kW. The power is selected depending on the volume of the pool, as is the case with any other type of heater.

When first warming up, it is very important to avoid sudden temperature changes that can damage the equipment. That is why for the first time do not expect quick results; the water will heat up for about 28 hours. Once the water has warmed up to the set temperature, the equipment will simply maintain it, which will allow you to save money.

Pool water temperature must be maintained taking into account the air temperature

If you want to know how heat the water in the pool using a heat exchanger and optimally positioning it, then this must be done in such a way as to avoid equipment breakdowns due to the presence of chlorine in the water. This means that the unit must be installed between the pool disinfection system and the pumping station. If there is too much chlorine in the water, then it is better if the heater is made of titanium; it withstands long-term exposure to an aggressive environment.

Buy pool water heater, operating on the principle of a heat exchanger, is worthwhile due to the following advantages:

  • high power level and the ability to heat water in a large volume pool;
  • financial savings as a result of the unit operating not from electricity, but from the heating system;
  • ease of operation.

Typical heat exchanger connection diagram

The only drawback of this type of heater is the long time it takes to heat up the water at first start. But later you won’t have to wait long, since the temperature you set will be maintained automatically.

Heating water using the sun

Of course, the outdoor pool itself warms up under the influence of sunlight. But this process can be accelerated if you use a solar collector or solar system. This type water heater is a system of flasks, screens or pipes that receive the sun's rays and convert them into thermal energy.

Helpful advice! Each solar system module is designed to heat about 30 m³ of water. This means that the larger the tank volume, the more modules will need to be installed.

Solar collector for heating the pool water

The solar collector works on the principle of absorption of solar rays by the surface. Inside the device there is a coolant that warms up to a temperature of 140°C. After this, the circulation pump in the pool water heater starts. The advantage of such a system is that it can be used not only for heating the pool water, but also as a heating system for a private home.

Some models of solar systems are equipped with special sensors and an automatic valve that directs water to the heat exchanger. If the set standard water temperature in the pool has already been reached, it passes by the heating element and gradually cools down. As soon as the temperature reaches the minimum point you set, the valve opens and water begins to flow back into the heat exchanger.

If pool water temperature comfortable, you can swim on a cool day

Advantages of solar pool heaters are as follows:

  1. The water heats up very quickly.
  2. You can use the system to raise the temperature of the water in the pool, to supply a private home with hot water, or to heat rooms.
  3. Simple and convenient control system.

How to heat a pool:let's consider pool water heater. After all, maintaining the optimal temperature in the pool is a very important point, especially if you plan to swim in it in the fresh air and not only in the hot season. We are talking about equipment such as pool water heater: how to heat water in a swimming pool at the dacha with maximum efficiency - a pressing issue for many summer residents. This can be done using various types of special equipment.

A heat pump is an effective device for heating the pool water

Types of water heaters

With the arrival of the summer season, sooner or later the owners of sealed reservoirs and reservoirs in their summer cottage will inevitably face the question: How heat the water V ? To do this, one of the following options can be used:

  1. Heat exchanger.
  2. Solar collector.
  3. Heat pump.
  4. Flow-through electric heater.
  5. Wood heater.
  6. Gas heater.


B, the water temperature should be increased to 30°C

Each type of equipment has its own operating characteristics and also has advantages and disadvantages. Choosing the type of heater depends not only on the volume swimming pool, but also on the characteristics of communications at the dacha, the amount of water that will need to be heated regularly and personal preferences.

Characteristics of flow heaters

Flow-through pool water heaters- These are one of the most economical and easy-to-use options. They heat running water with small pressure drops, boast compact dimensions and ease of installation. And to install a flow-through heater, you will only need to equip a small booth on the site. This type of housing is made of plastic, stainless steel or titanium, and the heating element is made of a special stainless steel alloy that can withstand high temperatures. Thereby instantaneous heater It is durable and resistant to various types of negative influences.


Flow heater for heating water in the pool

The power of the model must correspond to the volume of water that will need to be heated. This means that to heat water in a small pool with shallow depth you only need 3 kW of power, but for a large tank you will need a more powerful unit.

Maximum power flow heater is 18 kW, so it will be a good choice for small pools. However, if you are the happy owner of a tank with a volume of more than 36 m³, then buying a flow-type device does not make sense.

Helpful advice! Purchasing this model will also be inappropriate if your home has restrictions on electricity consumption or weak wiring.


If the pool water is too cold, swimming is not particularly pleasant, and the risk of colds is quite high

Electrical instantaneous water heaters for pools boast the following advantages:

  • quickly heat water in a small tank;
  • some models have a flow sensor that turns off water heating if it does not circulate;
  • the temperature can be adjusted using built-in thermostats;
  • there is an automatic control system;
  • compact dimensions.


It is important that pool water temperature was comfortable, especially if children bathe in it

They also have disadvantages:

  • impossibility of installation with limited power consumption or weak wiring;
  • low power levels;
  • high power consumption.

Heating water in swimming pools using a heat exchanger

A heat exchanger is a heater option that does not consume electricity at all. It connects to the general heating system of the house and uses heat from there. The design of this model is extremely simple. The body is a flask in which the coil is located. Water is supplied to it using a circulation pump from. The coil is washed with cold water, which heats up as a result. This simple design guarantees the reliability and durability of the unit.


Heat exchanger installation diagram for heating the pool water

When installing a heat exchanger, you will only need to set the required temperature on the thermostat, and it will be maintained using automatic systems. A nice feature of the heat exchanger is its high power level, it can range from 13 to 200 kW. The power is selected depending on the volume of the pool, as is the case with any other type of heater.

When first warming up, it is very important to avoid sudden temperature changes that can damage the equipment. That is why for the first time do not expect quick results; the water will heat up for about 28 hours. Once the water has warmed up to the set temperature, the equipment will simply maintain it, which will allow you to save money.


Pool water temperature must be maintained taking into account the air temperature

If you want to know how heat the water in the pool using a heat exchanger and optimally positioning it, then this must be done in such a way as to avoid equipment breakdowns due to the presence of chlorine in the water. This means that the unit must be installed between the system and the pumping station. If there is too much chlorine in the water, then it is better if the heater is made of titanium; it withstands long-term exposure to an aggressive environment.

Buy pool water heater, operating on the principle of a heat exchanger, is worthwhile due to the following advantages:

  • high power level and the ability to heat water in a large volume pool;
  • financial savings as a result of the unit operating not from electricity, but from the heating system;
  • ease of operation.


Typical heat exchanger connection diagram

The only drawback of this type of heater is the long time it takes to heat up the water at first start. But later you won’t have to wait long, since the temperature you set will be maintained automatically.

Heating water using the sun

Of course, the outdoor pool itself warms up under the influence of sunlight. But this process can be accelerated if you use a solar collector or solar system. This type water heater is a system of flasks, screens or pipes that receive the sun's rays and convert them into thermal energy.

Helpful advice! Each solar system module is designed to heat about 30 m³ of water. This means that the larger the tank volume, the more modules will need to be installed.


Solar collector for heating the pool water

The solar collector works on the principle of absorption of solar rays by the surface. Inside the device there is a coolant that warms up to a temperature of 140°C. After this, the circulation pump in the pool water heater starts. The advantage of such a system is that it can be used not only for heating the pool water, but also as a private home.

Some models of solar systems are equipped with special sensors and an automatic valve that directs water to the heat exchanger. If the set standard water temperature in the pool has already been reached, it passes by the heating element and gradually cools down. As soon as the temperature reaches the minimum point you set, the valve opens and water begins to flow back into the heat exchanger.


If pool water temperature comfortable, you can swim on a cool day

Advantages of solar pool heaters are as follows:

  1. The water heats up very quickly.
  2. You can use the system to raise the temperature of the water in the pool, to supply a private home with hot water, or to heat rooms.
  3. Simple and convenient control system.

If you read on the Internet about solar pool water heater Intex user reviews, it can be understood that the only serious drawback of such a water heating system is that in cloudy weather the efficiency decreases and the heat exchanger does not work as efficiently. This means that it is advisable to install a solar system where there are more sunny days a year than cloudy ones.


Main types of solar collectors for swimming pools

Heat pumps as a new heating technology

One of the innovations in terms of how to heat a pool, is a heat pump. This type of equipment is far from the most popular due to its fairly high price, but in terms of efficiency it can compete with all other options.

The operating principle of a heat pump is quite complex and is based on multi-stage heat transfer from different sources. The initial source of heat for the pump can be groundwater or thermal springs, flue gases, and in general anything that is at least a little warmer than the water in the pool.


The structure of a heat pump for heating the pool water

The external piping of the heat pump is located underground. Using a circulation pump, a working fluid is driven through it, which is heated by several degrees due to the ambient temperature. The liquid then enters the evaporator, where it heats the refrigerant. The latter instantly boils and transforms into steam, which, in turn, enters the compressor.

The compressor compresses steam to 20-25 atmospheres, resulting in the release of a large amount of thermal energy. It is this energy that is used for heating the pool water.

How heat up the pool at the dacha so that the energy from the heater is also enough for other needs? To do this, just fork out a little and install a heat pump. The system works so efficiently that it can easily heat private houses with an area of ​​up to 300 m². In addition, the system operates in a circle, that is, the working fluid, after releasing the accumulated heat, cools and circulates again through the pipeline.


Support pool water temperature at the optimal level using a heating blanket

If you are interested in the question of how quickly heat the water in the pool using a heat pump, then you should know its advantages:

  • very high power;
  • Free energy sources are used to heat water, which allows you to significantly save money;
  • The water heats up in a very short time.

The disadvantage of such a system is its high cost. For the same money you can buy several flow-through pool water heaters.

Helpful advice! If you think that a heat pump is a waste of money, then think about how much money you will save by using free energy sources. This is especially true if you use the system not only to heat water, but also to heat a large private house.


Working principle of a heat pump for heating the pool

Wood or gas water heater for a pool: how to heat water in a swimming pool at the dacha

Wood burning pool water heaters- This is one of the simplest and most economical designs. Essentially, it is a spiral along which water moves. A fire is lit under the spiral, it heats up and gives off heat to the water. You can use not only firewood as fuel, but also peat, dry garbage, coal and much more. This type of unit is good because it can be used in suburban areas where there is no electricity or gas. The pump, which is responsible for circulating water in the spiral, can be powered by an independent generator.

By purchasing wood burning pool heater, the main selection criterion is its power. It directly depends on the dimensions of the heat exchanger, as well as on the type of fuel used. Most models allow you to regulate the intensity of combustion, and you can easily connect a wood-burning unit without special skills.


Gas installation diagram pool heater

Advantages of a wood heater:

  1. Saving money by using cheap fuel.
  2. Easy to use.
  3. Fast water heating.
  4. Ease of installation.

Flaw heating the pool water with your own hands using a wood-burning unit - this is the absence of automatic systems. This means that the system must be constantly monitored, the fire must be maintained in it, and it must not be allowed to go out. Also, the lack of an automatic thermostat means you won't be able to accurately set the temperature you want the water to heat to.


Gas pool heaters They differ fundamentally from wood-burning ones only in that they use natural gas as fuel. This makes the system a little easier to operate and allows you to leave it without constant supervision. The advantage of a gas heater is its relatively low cost, but in this case your gas bills will be considerable, so before purchasing you should think about whether you need this type of heater.

Heating blanket

Separately, it is worth mentioning such an interesting type as a heating pool cover. Essentially, this is a special cover that can be made of polyethylene or tarpaulin, and also made in the form of blinds. Special heating blankets for Intex pools not only prevent leaves and other debris from getting into the water, but also accumulate solar energy to heat the water. Of course, using a blanket cannot heat water as effectively as using flow-through or storage heaters, but it does raise the temperature by several degrees.


Heating blanket for swimming pool Intex

Device selection criteria

Choosing pool water heater(Intex, Bestway, Behncke or any other company) there are a number of general parameters to consider.

Power. This parameter depends on the size of the pool and the amount of water that will need to be heated. Also, the power of the heater directly affects the rate of temperature rise. For example, an Intex pool water heater has a power of 3 kW, and pool heater Bestway - 2.8 kW. You can calculate the power required for effective heating using a very simple formula: the volume of the pool is divided by two.

Heating method. Flow-through water heaters- a popular option if you need to heat water in. As a rule, the main advantage of any flow-through heater is its relatively small size, due to which such a device can be installed in a small area. The principle of operation of a flow-through system is that water passes through a heating element, which gives off heat to it. Most of these systems operate in cycles. Flow model, for example, pool water heater Intex, it is good to use for small tanks, the water for which is taken from a central water supply system, a well or a well.


Water temperature is one of the key components of comfort in the pool

Energy source used. Here you need to take into account the availability of a particular fuel, as well as your financial capabilities. For example, a solar-powered unit is the most efficient, but it is quite expensive, and it does not make sense to use it in areas where there are more cloudy days than sunny days.

Of course you can always collect DIY pool water heater, there are a sufficient number of ready-made schemes for this on the Internet. However, purchasing a factory-made product will allow you not only to save time and effort, but also to receive a reliable and durable device with the possibility of warranty service.