Direct combustion boilers

The Sigma 16 and Sigma 20 have a simple and reliable design. In this type of boiler all the fuel burns at the same time, so it heats the heat carrier in the system very quickly. These economy-class boilers are designed for heating premises of various purposes which have an area of up to 200 square meters. Used fuel: wood, coal, various types of briquettes. The thickness of the boiler inner walls is 6mm. The frame is made of heat-resistant special steel. This ensures durability and maximum benefit to the user.