If a steam bath furnace with a heat exchanger is installed in the steam room, then there will be no need to spend additional funds on the installation of a boiler, which is required for heating water. Such designs are the most optimal options, due to the fact that they not only heat the room, but also provide the owners with hot water.
Principle of operation
If you decide to install a bath furnace with a heat exchanger, then you need to get acquainted with the principle of operation of this device. Heat exchangers are also called water circuits. Regardless of where they are located, their functioning occurs according to a single principle. Thermal energy from the furnace goes to the shirt or to the register. The coolant that is in the heat exchanger starts to heat up. In the tank, the water has a temperature below room temperature or slightly higher. Due to this difference in the circuit, a pressure arises that promotes the circulation of the coolant. Thus, the heated water enters the tank. From it, the coolant is spent on hygiene procedures. After that, another portion of cold water enters the tank. It is transferred to a heat exchanger, where it is subsequently heated. In the event that the system has a closed type, which involves the operation of the tank as a heating device, water should be filled before the furnace is ignited. In this case, the temperature difference can cause deformation and damage to the metal of the heat exchanger. The circulation will continue until a sufficiently high temperature is maintained in the structure. If you install a bath furnace with a heat exchanger, then there will be no need to install a water heater, which is installed in the shower. Among other things, the owners will not face the issue of arranging heat sources in the premises.
What you should pay attention to?
Owners of private baths sometimes encounter a problem, which is expressed in the fact that water cannot move by gravity. This process can only be partially difficult. In this case, the circuit must be supplemented with a circulation pump. It is important to remember before carrying out such work that the system, although it will differ in efficiency, will be volatile.
Furnace installation
If you decide to choose a furnace for a bath with a heat exchanger, it is important to get acquainted with the technology of its installation. Installation works are carried out after the arrangement of the foundation, which is necessarily poured into the ground by 40 centimeters. The base should rise above the ground, however, this should be guided by the base of the floor. The furnace should be fenced with masonry, which is equipped with clay mortar. A heat exchanger should be installed in the furnace room. The furnace must be brought out in advance of the hole, which will be located in the log house.
Recommendations to specialists
When installing the furnace in a bath with a heat exchanger, heated water will flow into the tank or connected radiators. In the latter case, pipes should be used that should be wrapped with thermal insulation. The chimney must be led out through a well-equipped hole in the roof. It is closed with a steel sheet in which a cut is made. The joints obtained must be well sealed.
A few words about connecting
If you have chosen a furnace for a bath with a heat exchanger and a water tank, you need to learn the moment that the structure is primarily intended for heating a steam room, the secondary task is to heat the water. Managing multiple processes at the same time will be impossible. Steam room is a priority. For this reason, it is necessary to ensure the selection of heat and find a good storage capacity. It is advisable to equip the system so that hot water drains by gravity, without using a circulation pump.
If the heat exchanger has the form of an economizer or a coil, then it is necessary to install an external tank in the bath, mounting it above the level of the furnace. For the installation of this system, it is permissible to use metal or polymer pipes, however, polyethylene pipes should not be used. The diameter of pipelines and networks where water flows by gravity must be chosen so that the indicator is not less than the dimensions of the heater nozzles. It is best for the diameter to be one size larger. In this case, the step from the tank to the heating equipment should not be more than three meters.
Self-made heat exchanger
If you decide to prefer a furnace for a bath with a heat exchanger for water, then the last component can be made independently. To do this, prepare a metal whose thickness is 2.5 mm. Above, a cylindrical shaped container should be connected to a lower rectangular shaped container. Pipes should be used. The main condition when performing these manipulations is the provision of all mating seams with the smallest gaps. The dimensions of the steel furnace itself, as well as the diameter of the pipes, must be selected in accordance with the dimensions of the steam room.
The nuances of the work
If you are manufacturing a fireplace stove with a heat exchanger, then prepared cut blanks that are cut from a metal sheet should be fixed by welding. After all the calculations have been done, and you are fully convinced that there are no errors in them, you can assemble the entire system completely. After final assembly, the system should be checked for strength. You can use the following technology. The lower pipe must be welded, and then fill it with water to the very top. The outlet must be connected to the container. Then compressed air is pumped, and the pressure gauge allows you to analyze the pressure. With well-made seams, there will be no leak. If places through which water seeps have been identified, the liquid must be drained to re-brew errors. It is important to consider when carrying out such work that the total length of the pipes should be minimal.
Heat exchanger installation recommendations
If you have chosen a furnace for a bath with a heat exchanger for heating, it is important to consider that it will be much more difficult to install a water circuit in a furnace or gas duct compared to the case when the heat exchanger is included with the purchased furnace made of metal. In the first case, the register must be made in advance using a thick-walled black pipe or stainless steel. If you perform a circuit with a small exchange surface, the coolant will constantly boil, this must be eliminated. Whereas excessively large sizes, on the contrary, will cause a long warm-up. Ultimately, if you need to use water, it will remain cool. That is why it is so important to make a contour with an optimal exchange surface.
Conclusion
If the fireplace stove with the heat exchanger is installed correctly, then this design will last quite a long time, without suggesting the need for repair work.