English to Polish Tech/Engineering Energy / Power Generation

Thermostatic valves play two very important roles in small, solid fuel boilers. The first is to sprinkle water onto the bio-mass fuel if the burning process moves backwards into the fuel feed screw and magazine. The second is to dissipate excess heat so that the water temperature does not exceed 100•C in the boiler.
The Xyz has been developed from the Abc thermostatic valve, which is still commonly used in back burning safety applications.