Biomass boilers model SERENA can burn piece of wood (manual loading) and pellet types (wood, corn, grape, sunflower, etc. ..), almond shells, peanut oil, etc. .. The boiler allows, once the wood to continue heating with pellets contained in large stock.The boiler's body type is Marina to 3 passes with horizontal tube and cast iron burner with type eruptive base refractory. The yield certificate EN 303-5 allows optimum levels of the production yield termic.For health care there is a possibility (in alternative to an external tank) to have the heat exchanger interno. Sistem of load a double auger suitable for all types of fuels.
