If a sauna stove with a heat exchanger is installed in the steam room, then there will be no need to spend additional money on installing a boiler, which is required to heat water. Such designs are the best options, due to the fact that they not only heat the room, but also provide the owners with hot water.
Working principle
If you decide to install a stove for a bath with a heat exchanger, then you first need to familiarize yourself with the principle of operation of this device. Heat exchangers are also called water circuits. Regardless of where they are located, they function according to the same principle. Thermal energy from the furnace is supplied to the jacket or to the register. The coolant, which is in the heat exchanger, begins to heat up. The water in the tank has a temperature below room temperature or slightly above. Due to this difference, pressure is created in the circuit, contributing tocoolant circulation. Thus, heated water enters the tank. From it, the coolant is consumed for hygienic procedures. After that, another portion of cold water enters the container. It is transferred to the heat exchanger, where it is subsequently heated. In the event that the system is of a closed type, which involves the operation of the tank as a heating device, then water should be poured even before the stove is ignited. In this case, the temperature difference can cause deformation and damage to the metal of the heat exchanger. The circulation will continue as long as a sufficiently high temperature is maintained in the structure. If you install a sauna stove with a heat exchanger, then there will be no need to install a water heater that is installed in the shower room. Among other things, the owners will not face the issue of arranging heat sources in the premises.
What should I pay attention to?
Owners of private baths sometimes face the problem that water cannot move by gravity. This process can only be partially hampered. 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 become efficient, will be volatile.
Installing the oven
If you decide to choose a stove for a bath with a heat exchanger, it is important to first familiarize yourself withinstallation technology. Installation work is carried out after the arrangement of the foundation, which must be poured into the ground by 40 centimeters. The base should rise above ground level, however, this should be guided by the base of the floor. The stove must be enclosed with brickwork, which is equipped with clay mortar. A heat exchanger should be installed in the furnace room. The firebox must be taken out into a pre-made hole, which will be located in the log cabin of the bath.
Recommendations for specialists
When installing the stove 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, which should be wrapped with thermal insulation. The chimney must be brought out through a pre-arranged hole in the roof. It is closed with a steel sheet in which a cutout is made. The resulting joints must be well sealed.
A few words about connection
If you have chosen a stove for a bath with a heat exchanger and a water tank, then you need to learn the moment that the design is primarily intended for heating the steam room, the secondary task is to heat the water. It will be impossible to manage several processes at the same time. The steam room is a priority. For this reason, it is necessary to provide heat extraction and find a good storage capacity. It is desirable to equipsystem so that hot water flows by gravity, without the use of 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, but polyethylene should not be used. The diameter of pipelines and networks where water flows by gravity must be chosen in such a way that the indicator is not less than the dimensions of the heater nozzles. It is best that the diameter is 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 stove 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. The cylindrical container located on top must be connected to the lower rectangular container. In this case, pipes should be used. The main condition for performing these manipulations is to ensure that 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.
Nuances of the work
If you are making a fireplace stove with a heat exchanger, then the prepared cut blanks that are cut from a metal sheet should befixed by welding. After all the calculations have been made, and you are completely convinced that there are no errors in them, you can finally assemble the entire system. After final assembly, the system should be checked for strength. In this case, the following technology can be used. The lower pipe must be welded, and then filled with water to the very top. The outlet must be connected to the container. Compressed air is then pumped in, and the pressure gauge allows you to analyze the pressure. With high-quality seams, there will be no leakage. If places were identified through which water seeps, then the liquid must be drained in order to re-brew the errors. It is important to consider when carrying out such work that the total length of the pipes should be minimal.
Recommendations for heat exchanger installation
If you have chosen a stove for a bath with a heat exchanger for heating, then it is important to consider that installing a water circuit in a furnace or flue will be much more difficult compared to the case when the heat exchanger is included with the metal stove being purchased. In the first case, the register must be made in advance, using a thick-walled black pipe or stainless steel. If you make a circuit with a small exchange surface, then the coolant will constantly boil, this must be excluded. While excessively large sizes, on the contrary, will cause a long warm-up. Ultimately, when you need to use the water, it will remain cool. That is why it is so important to make a contour with an optimal exchange surface.
Conclusion
If the stove-fireplace withthe heat exchanger is installed correctly, then such a design will last for quite a long time, without assuming the need for repair work.
