This can also be known as an ‘outside air supply’ and is a way of feeding combustion air straight into the stove from outdoors. Even if the stove and situation do not officially require an air vent this system increases the overall effectiveness of the installation as you are not using ‘ready warmed’ room air for combustion. External air feeds are also a requirement when other factors need to be considered, such as when the property has a heat/air recovery system or the house is an eco build and very sealed. As these can affect the stove, and vice versa the outside air kit keeps the stove’s air supply separate from the room.
Kitchen Extractor fans:
We fit many stoves into open plan rooms where there is an extractor above the cooker hob and the removal of air will have a detrimental affect on the air flow to the stove so ventilation is then required. The outside air kit is ideal for this situation.
With any installation a HETAS engineer will assess the air flow to the room and then perform a pressure test to assess that the correct flue draught has been achieved to meet the stove manufacturer’s installation instructions.
