Exhaust Air Heat Pumps
Ventilation is required for a hygienic and healthy house. In order to minimize the levels of potentially harmful bacteria, pollutants and noise. There is a role for controlled domestic ventilation, whilst also re-cycling the heat generated by humans, domestic appliances and other sources.
Nowadays we spend around 90% of the time indoors. This undoubtedly places great demands on the climate inside. The inside climate is affected considerably by odours, harmful substances, noise and temperature. In most homes we effect ventilation by opening the window or door. This is assisted by uncontrolled ventilation, for example draughts. All ventilation results in significant heat loss from the home. The exhaust air system, through the use of small pipe ducts in the walls and ceilings can clean the air and re-cycle the heat.
This approach to heating requires a high degree of thermal insulation and is best included in the construction design of the property. Typically the air should be changed in the house between once every hour to two hours.
Ventilation accounts for about 50% of the total heat loss from a home.
NIBE FIGHTER exhaust air heat pumps facilitate heat recovery and supply the energy recovered from exhaust air for the domestic hot water and even the heating. The diagram below shows the typical energy savings and requirements and how they are met by the exhaust air system. This type of system also can provide passive cooling in the summer.
We recommend 3 machines for this type of heating solution the NIBE FIGHTER 315P, FIGHTER 360P and FIGHTER 600P pumps. All these pumps include an integral hot water tank. Using the FIGHTER 600P it is possible to supply a far greater proportion of the total heat requirement with the heat pump.
Not only does energy recovery ensure a healthy and comfortable form of heating, it also provides real savings in terms of heat energy, along with CO2 emissions.
