CAST IRON BOILER COMBI ECO S4 22kW-41kW

10-year warranty on the tightness of the exchanger provided that the thermal return of the boiler is secured (recommended by Klimosz is a four-way valve with an actuator). Power 22kW-41kW Material -cast-iron efficiency - 92% Product weight -545kG Compliance with ECODESIGN, i.e. EU Commission Regulation 2015/1189, for fuels: eco-pea coal and pellets. Possibility to change the type of fuel from eco-pea coal to pellets (and vice versa)! If you want to burn pellets, an STS thermostatic valve is required Exceptional boiler durability - up to 25 years of service life thanks to the cast iron exchanger, which is characterized by incomparably higher resistance to water and chemical corrosion than boilers with a steel exchanger. Multi-pass exchanger made of the highest quality Italian cast iron with a wall thickness of up to 12 mm with high efficiency of heat recovery from exhaust gases, ensures minimal fuel consumption. Reliable retort burner specially designed for maximum efficient combustion of eco-pea coal and pellets - The grate, boiler, door and feeder are made of cast iron. boiler installation