The METROAIR AQUA heat pump module is a small, floor-mounted air-to-water domestic hot water heat pump without a tank. It uses the energy from the ambient air to produce domestic hot water for single-family houses. It is also possible to use the heat pump to heat fluid-carrying space heating installations.
METRO THERM's domestic hot water heat pump system consists of an efficient heat pump connected to a well-insulated hot water tank. The heat source (air or liquid) passes across the heat pump’s refrigerant, which circulates in a closed loop. The heat source releases some of its energy to the refrigerant, which is run through a compressor, causing the pressure and hence the temperature to rise. The resulting hot liquid then circulates through a coil around the hot water tank, heating the water.
Our air-to-water domestic hot water heat pump is capable of producing up to 4.5 times as much heat as it consumes in electrical power.
With its direct preheating coil, our liquid-to-water domestic hot water heat pump can make use of the heat source twice, producing right up to 8.5 times as much heat as it consumes in electrical power.
METRO THERM’s domestic hot water heat pumps are inexpensive to buy and install compared to conventional heat pump installations. The system combines a heat pump and a water heater in the same unit and is designed for easy transport and quick installation.
METRO THERM’s domestic hot water heat pumps are among the most cost-efficient and environmentally friendly solutions for producing domestic hot water. They all rated A+, the highest energy rating for domestic hot water heat pumps. A domestic hot water heat pump is an excellent way to establish your green credentials with a highly efficient water heating solution.
COP at air 7°C and water 10 to 53.5°C (EN16147)
Sound power at 2 m and 100% air flow
Pipe connection, mm
Air ducts, mm
Max. water pressure
Max. water temperature
Air flow interval (at 100 Pa)
Dimensions (H x W x D), mm
510 x 580 x 580