Exhaust Air Heat Pump & Heat Recovery

As insulation and weather stripping improves building efficiency, buildings become more airtight. In terms of energy efficiency this is great, but it does mean that the house becomes less well ventilated.

Heat recovery ventilation systems can be standalone devices that operate independently, they can be built in to the fabric of the building, or can be added to existing systems. The system pulls in fresh air from the outside, and circulates it around the building.

Exhaust air heat pumps and heat recovery ventilation provide fresh air for well insulated houses. This is particularly useful for new houses, where good insulation and air tightness tests required by building regulations mean that less air naturally permeates into the building.

If you have a small building, where nearly every room has an exterior wall, the device can be small and provide ventilation for a Single room. For a larger building, you could have either many small units, or a larger central unit.

The only requirements for the building are an air supply, either directly from an exterior wall or through a duct, and an energy supply.