Exhaust air heat pumps extract heat from the exhaust air of a building and require mechanical ventilation. Two classes exist: Exhaust air-air heat pumps transfer heat to intake air. Exhaust air-water heat pumps transfer heat to a heating circuit that includes a tank of domestic hot water.
Exhaust air heat pumps extract heat from the exhaust air of a building and require mechanical ventilation Two classes exist Exhaust air-air heat pumps transfer heat to intake air. Exhaust air-water heat pumps transfer heat to a heating circuit that includes a tank of domestic hot water.