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Heat Recovery Ventilation
Ventilation is a necessary requirement for some new builds and refurbishments as it brings in revitalising fresh air and removes the unwanted stale internal air. The problem with this process with a traditional ventilation system is that you often need to "temper" the incoming air to raise its temperature by means of electric heat or low-pressure hot water coils. You then find when extracting the stale air the heat generated in the room which you are trying to keep in gets removed outside with it. Conversely, in the summer you may be spending money to cool down the internal spaces only to find that your traditional ventilation system is bringing in more hot ambient fresh air.
A solution to this is to install a Heat Recovery Ventilation system which can recover any energy, either hot or cold, from the outgoing extracted air and transfer it to the incoming fresh air. This then tempers the fresh air accordingly without mixing the two air streams. Certain equipment can recover and re-use up to 70% of the outgoing energy, therefore, reducing the heating or cooling load to the room thus reducing running costs.