For air-tight, low energy builds, where ventilation is a must, choose an Exhaust Air heat pump. This will re-cycle the heat from your house’s ventilation system. These machines are ideal for apartments and more compact air-tight low energy or passive homes. Air is drawn through ducts to the heat pump from the bathrooms, utility and kitchen areas.
The cold waste air is discharged to outside through another duct, and condensation to a drain.
Not only that, the additional heat generated internally from lighting, people and domestic appliances is also utilised through heat recovery.