istop r frostschutzventil mit aussenluftfuhler serie 108 Tauchhülse the boiler ensures a reliable

the boiler ensures a reliable heat supply even under increased demand

Pellet storage A

15 cm at the rear

Heizungsmanometer 3/8"

achieves an 8% higher efficiency than comparable standard units

istop r frostschutzventil mit aussenluftfuhler serie 108 Tauchhülse the boiler ensures a reliableCaleffi frost protection valve for heat pumps 1" and 1 1 4'' with outside air duct The frost protection valve prevents the medium in the system circuit from freezing and thus prevents damage to the heat pump and pipes. The valve is a mechanically operating protective system. The version with an outdoor air sensor allows the system to operate in cooling mode even when the water temperature approaches 3C. TECHNICAL DATA Frost protection valve Caleffi