How our CO2 Hot Water Heat Pump Works

Heat pump water heaters absorb warmth from the air, amplify it and transfer it to heat water. Therefore, they are also referred to as ‘air-source heat pumps’. Heat pumps use electricity to operate the compressor rather than heating an electric element. Because of this a Reclaim system is nearly five times more efficient than a conventional electric water cylinder with an electric element. They save energy, save money and reduce greenhouse gas emissions from the electricity generation.

Diagram showing how the Reclaim Energy co2 heat pump works

Uses heat energy in air

Ambient temperature air contains plenty of heat energy

Heat pump concentrates heat energy

Reclaim compressor concentrates heat energy from air using natural CO2 refrigerant

Cylinder heated by heat pump

Heat energy is transferred from CO2 refrigerant to cold water by heat exchanger in compressor.

Hot water fills cylinder from top down

In a single pass through the compressor hot water at 63°C is returned to the top of the hot water cylinder.

Heat pump turned off when full cylinder is hot

Reclaim controller turns heat pump compressor off once sensor in cylinder reaches 60°C