Now additional output sizes of 16 and 18.5 kilowatts extend the range of applications for the Vitocal 250-A and 252-A heat pumps for buildings with higher heating loads.
The Vitocal 250-AH version is particularly suitable for supplementing an existing heating system. With a flow temperature of up to 70 degrees Celsius, the 250-AH model has been specially developed for modernisation. This is because the heat pump provides the base load. The boiler is only switched on at particularly low temperatures. The hybrid solution is particularly compact. The appliances use the natural refrigerant R290 (propane). (nhp)
