Solid fuel boilers
The solid fuel boiler transfers the heat generated as a result of the combustion of the fuel coolant, which through the radiators of heating gives it the internal environment of the room.
The storage tank adds to the system of inertia, accumulates heat at the peak of the boiler's performance and gives it to the heating and water supply system if necessary. This stabilizes the work of the solid fuel boiler and allows the system to function even after the burning of fuel in the boiler (the time can vary from 6 hours to several days, depending on the volume).
Inside the storage tank, indirectly heated hot water tank is often built in, which makes it possible to receive a stable amount of hot water in the amount necessary to provide several points of disassembly of hot water.
An alternative heating element is mounted in the tank - more often - electrons. It supports the system at moments of peak loads, and does not allow it to cool at moments when fuel in the boiler is already burned down. That is, the heating system goes into standby mode until the next ignition of the boiler.
Thermostatic mixers are also an integral part of the heating system based on the solid-fuel boiler - they provide a stable temperature in the boiler, the system of hot water supply and heating.
The work of solid fuel boilers (especially cast-iron ones) requires a stable temperature of the coolant - the temperature difference between the supply line and the return side must not exceed 5-10 ° C. To achieve this goal is a thermostatic valve near the boiler in conjunction with the circulation pump. The next thermostatic valve is located on the hot water supply line and stabilizes its temperature at a predetermined value - typically from 55 to 65 ° C. The last valve in conjunction with the circulation pump provides a stable temperature of the coolant in the heating system.
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