Vaillant launches space-saving residential heat pump The German manufacturer said that its new air-to-water heat pump system uses propane as a refrigerant and is available in three variants with ...
Germany’s Vaillant has developed an air-source heat pump that uses propane (R290) as the refrigerant. It can produce between 3.5 kW and 12 kW of heat, and domestic hot water to a temperature of up to ...
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