Exhaust Air Heat Pump

An Exhaust Air Source Heat Pump (EAHP) is a system that absorbs heat from the waste air (or exhaust air) leaving a building.
Heat is extracted from the exhaust air and is upgraded into useful heat energy for space heating and domestic hot water.
An EAHP can also work alongside a conventional boiler (mains gas, LPG, oil, biomass, etc), providing hot water storage and hot water production at times when the conventional boiler unit is not required for heating, usually during the summer months.
FLEXIBILITY AND BENEFITS
– Actual heat pump setting is controlled by a climate curve
– Immersion heater automatically boosts water temperature to the desired setting when the actual setting is controlled by the weather curve
– Easy integration with Photovoltaic Panels via dedicated solar controller
– Exhaust Air Heat Recovery: the unit can be ducted to act as a Mechanical Extract Ventilation unit and recover heat from extracted air so that it has higher energy efficiency, even with very low outside temperatures during the winter. A simple blending damper can be installed to balance outside and inside the air intake.
– Hot water, cooling, and dehumidification: air from the outlet of the unit can be diverted back to the rooms using a simple blending damper. This air has been cooled (heat extracted) and dehumidified. It is a by-product whilst the unit is performing its primary function of generating hot water.
– Compatible with solar energy: the unit can work with solar thermal panels by utilisation of secondary heat exchanger, or with photovoltaics (all models) by connecting built-in immersion heater to the external solar controller.
– Direct replacement of existing Direct/ Indirect hot water cylinder: the unit can be a direct replacement to existing hot water cylinders used with existing conventional boilers (gas, LPG, oil, biomass etc.). During the non-heating season, it can be used as a hot water cylinder heat pump with a secondary boiler not in use at all.