The combustion chamber is realized for wood function, with natural aspiration.It’s equipped with a thermostat for mechanical regulation of boiler temperature that, acting on the porthole of entrance of combustive air, permits the flux air regulation.
The thermostat with the increase of water temperature in the boiler,permits to close the porthole of entrance of combustive air, determining the decrease of air flx so to decrease the flame, when it has the decrease of temperature in the boiler happens the contrary, it means that the thermosta of regulation permits the opening of porthole of intrance combustive air to increase the flame.