Of all the possible options, heating the pool with a geyser seems to be the most effective. The task of maintaining the desired level of hot water temperature only at first glance looks quite simple. A lot has to be done before the process can be automated and the process of relaxing in the pool more comfortable.
The content of the article:
Pros and cons of gas water heaters
- Positive sides
- Disadvantages of pool heating with a geyser
Device and principle of operation
- Heating the pool with a geyser
- Pool heating with gas bottle
- What to look for when choosing?
Models of boilers for heating water with gas, prices
- BOSCH WR 15-2B
- MIZUDO HSV 4-14 T
- NEVA LUX 5514E
- BOSCH WTD12 AME
- How to connect to the tank?
- How to use?
- Other ways to heat an artificial reservoir
Pros and cons of gas water heaters
The easiest, but costly way is to buy a ready-made gas water heater of a specialized model. Such devices can work for days, providing heating of the pool at any air temperature.
The only drawback of such a device is that the price is about an order of magnitude higher than for a medium-power gas column, and they practically do not differ in principle of operation. Therefore, the use of a geyser for heating the pool is beneficial in terms of saving money on the purchase of equipment.
In order for the column on gas fuel to be used for heating, you will need to do the following:
- choose the type of gas fuel;
- calculate the required power of the device;
- plan the connection scheme, taking into account the strapping with additional devices.
In addition, it will be necessary to make protection for the geyser, since the device was originally designed for its functions to produce hot water in small quantities. But not for heating the pool, which can be up to 10 m3 water. Therefore, it is necessary to take into account all the disadvantages and advantages of a gas apparatus.
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The main advantages of using a gas column:
- low price;
- simple device design;
- the ability to accurately control the flow of water for heating the pool.
Many models have a non-volatile design, so they can work even in the absence of electricity in a country house or in the country. But in this case, an additional water tank (water tower) will be required, otherwise the dispenser automation simply will not start the gas burner due to low pressure in the heat exchanger.
Disadvantages of pool heating with a geyser
A home gas water heater can only in theory be used to heat a pool. The main disadvantage is that the device for heating the pool will need to be bought ready-made. No alterations of old models or home-made heaters when using gas fuel are allowed.
The disadvantages include dependence on gas. It is not difficult to buy it at any gas car filling station, but you still need to spend money and time on acquiring fuel. If network gas is used for the column, then, in addition to the apparatus, it will be necessary to install a gas meter, as well as lay a pipe to the connection point.
Most geysers have a flow-through scheme of operation. That is, if the heating water is supplied directly, then a powerful pump and a reinforced filter will be required. Otherwise, all organic matter and fine sand, street dust, which are always abundant in pool water, will settle inside the heat exchanger. Over time, the column may burn out.
Device and principle of operation
The column for heating the pool can be connected to a centralized household gas network, to a cylinder with liquefied propane-butane. If a central gas supply pipe has already been installed in the house, then a column with a heating boiler or with a double-circuit heating apparatus is most likely also available.
In theory, a boiler unit with two circuits, for hot water and home heating, can be used to heat the pool, but only in theory. In practice, the owners of double-circuit boilers do not really want to risk an expensive apparatus. Calling a wizard and flushing a bithermic heat exchanger are expensive. If you heat the pool with a boiler, then you will have to flush it at least twice during the summer. It all depends on the degree of pollution of the water volume of the pool.
Therefore, an inexpensive direct-flow gas column of the required power is bought to heat the pool. The gas column heat exchanger can be washed with your own hands.
Important! In fact, this is a copper pipe, bent by a coil around a copper screen. Whereas a bithermic heat exchanger is a honeycomb, therefore, flushing requires a specialist, equipment and special reagents.
Heating the pool with a geyser
The instantaneous water heater-column must be installed in a closed, well-ventilated area. The chimney can be made through the wall (coaxial version), and an additional 50 l boiler can be installed here.
If there are no more gas appliances in the house, then you will need to allocate space for installing a gas meter. If there is no electricity, you will need a place for a powerful battery and a voltage converter.
To connect the column to the network gas supply, you will need permission from the Gas Management Department. In addition, you will need to create a form and a passport for a gas heater.
Pool heating with gas bottle
An easier option is to connect and use propane-butane. A gas cylinder, like a column, must be registered with the UGH, but in practice almost no one does this.
A water heater column can be installed in the country, used to produce hot water - for a shower or heating a pool. The equipment is dismantled for the winter. The only negative is that the cost of heating will cost 30% more than on mains gas.
Important! A once-through column on a bottle of fuel is the only effective way to provide trouble-free heating of the pool for many months of operation.
What to look for when choosing?
The first step is to choose the power of the water heater. According to the heat output, water heaters are divided into:
- low-power - hot water consumption up to 10 l / min, power - up to 17 kW / h;
- medium power with a flow rate of up to 14 l / min, power - up to 25-30 kW / h;
- increased power - more than 20 l / min and power from 30 to 45 kW / h.
The children's pool fits up to 3 m3 of water, respectively, for heating the entire volume with a low-power model with a flow rate of 10 l / min, 5 hours are required. If you install a powerful column for heating, the required time will be reduced to 1.5 hours.
After warming up the entire volume of water in the pool, the column is transferred to reduced power mode. Warm water will come into the heating circuit, so instead of the required 25-30 kW / h of power, only 10-15 kW / h will be needed.
Therefore, for heating water in the pool, it is best to choose models with a large power range, 10-30 kW / h, and built-in automatic maintenance of the water heating level. That is, the electronics will automatically change the power of the burner depending on the temperature of the incoming water so that the output water flow is stable within 35-45OWITH.
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Models of boilers for heating water with gas, prices
To heat the pool, you will need a column model with automatic overheating protection, a built-in flow sensor and an internal power supply (batteries) for the ignition and thermostat. Only then can trouble-free operation be guaranteed.
BOSCH WR 15-2B
One of the most reliable models is a stainless steel heat exchanger. There is a built-in water flow sensor, overheating protection, automatic adjustment of the degree of heating of the water flow when the temperature and pressure of the incoming water change.
Price - 35 thousand rubles. rub. Ignition from a set of batteries.
MIZUDO HSV 4-14 T
The characteristic is more like a heating boiler. There is a built-in flow sensor, overheating protection, combustion front control and an automatic water temperature controller at the outlet of the heat exchanger.
Power - 28 kW / h. There is also an electronic ignition and a memory settings function.
Price - 24 thousand rubles. rub. Country of manufacture - China.
NEVA LUX 5514E
The model is made in Russia. Power - 27.6 kW, water consumption - 14 l / min. There is a flow sensor and overheating protection. Temperature control is manual only.
Price - 18 thousand rubles. rub. It can work even on water heavily polluted with salts, it can be used for direct heating of the pool, provided that an anti-dirt filter is installed.
BOSCH WTD12 AME
Produced in Portugal. It works only on mains gas; to connect to propane-butane, replacement of jets is required. Power - 20.8 kW at a water flow rate of up to 18 l / min. Installed electronic ignition and automatic water temperature control system. One of the few models that can be started at a pipe pressure of 0.1 bar.
Price - 54 thousand rubles. rub., warranty - 2 years.
How to connect to the tank?
In addition to the column itself, for the operation of the pool heating system, a pressure tank will be required, as well as a water pump with step-by-step water flow control and a built-in flow sensor. Roughly productivity should be at least 15-25 l / min.
The pump is connected to the inlet pipe of the water heater column. Its task is to create excess pressure (provide the required water flow) in the pipe, otherwise the pool heating system will not start. All flow columns-water heaters are equipped with a water pressure sensor in the pipe.
A pressure tank is installed in front of the pump. This can be a container raised to a height of up to 3 m, or an expansion tank. Its task is to create excess pressure in front of the pump, otherwise, when the heating starts, the flow switch will not turn on and, accordingly, the column will not work.
The heating system can be connected directly if the characteristics of the water heater heat exchanger allow. In this case, the pool, in addition to heating, must be equipped with an autonomous water filtration system. In this case, the intake pipe should be located at a height of at least 25-30 cm from the bottom.
The second option for connecting heating is through an additional dual heat exchanger. In the first case, the column heats the primary water flow to a high temperature (up to 60OC) and transfers part of the heat through an autonomous filtration system. This scheme is used to heat stationary outdoor pools up to 10 m3.
How to use?
If the heating system works through an additional heat exchanger, then the water filtration pump starts first. As soon as the system is filled with water, you can open the valve on the pressure tank and turn on the pump, which pumps water through the column and the heating circuit.
It remains only to set the temperature of the water flow, press the ignition button and open the hot water supply valve to the pool. As soon as the pump creates pressure in the pipe, the burner will ignite and the heating system will start.
Other ways to heat an artificial reservoir
There are several ways to heat a pool. The easiest way is to use a remote wood stove with an additional pump. The heating system is quite simple, but due to its low power it is suitable only for pools of small volume, up to 5 m3. Typically, such a scheme is used for country reservoirs.
For permanent pools of medium and small volume, solar heaters, both handicraft and industrial, are often used. The disadvantage of the scheme is the dependence of heating on the weather. Most often, the heating takes up to 5 hours.
For private households, portable liquid fuel stoves (diesel oil and waste oil) are often used. The efficiency and speed of heating is higher than that of gas water heaters, but when liquid fuel is burned, a huge bluish cloud of combustion products is formed. Therefore, the scheme is used only as a temporary one and only for the initial heating of large-capacity pools, up to 40-60 m3.
The main thing in arranging pool heating with a geyser is to choose the right model of a water heater. The use of full-flow heaters greatly simplifies the circuit, making it more reliable and safe. Heaters with built-in tanks are more suitable for home pools, as well as bath or sauna hot tubs.
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