The lower tube is tightly closed.

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The efficiency of heating the steam room and heating the water will directly depend on the correct determination of the heat exchanger area. To calculate the pipe sizes, you need to know the capacity of the furnace of the available heater. To heat a bathhouse with an area of ​​5x5 m, a stove with a thermal power rating of 5 kW is sufficient. For high-quality water heating from a 5 kW heat generator, a heat exchanger with an area of ​​0.6 m² is required.

The optimal area of ​​the heat exchanger of the sauna stove mint data also depend on its location in the steam room or dressing room, the intensity of fuel combustion, the use of firewood or coal, as well as a number of other characteristics. To simplify the calculations, you can use ready-made heat exchanger schemes for the sauna stove, and then, depending on the size and type of the heater, select the total area of ​​the water jacket.

Having installed the heat exchanger and connected the expansion tank or circuit with radiators to it through the fittings, the first heating can be performed. Before use, the system is checked as follows:

1.
2. The entire system is filled with coolant.
3. The upper branch pipe of the heat exchanger is connected to the expansion tank.
4. Fill the system with compressed air, monitoring the pressure using the pressure gauge.
5. Check the structure for leaks. If any are found, they are welded, after draining all the liquid.
By making or buying a ready-made stove with a heat exchanger for a bathhouse, you can not only solve all the issues with heating the steam room, but also simplify the heating of adjacent rooms. Such a design will have an additional tank with heated water, which eliminates the need to purchase a boiler and an external heater. Using a ready-made scheme, you can do all the work yourself, saving on buying expensive factory models of bath stoves.

Manufacturing and installation of a heat exchanger for a sauna stove
The idea often arises to use the extra kilowatts of heat that arise when heating a bathhouse. Craftsmen have learned to use this energy to heat water for washing and to heat adjacent rooms. Such energy is received and accumulated through heat exchange.