Greenwood Vireo HR155CM & HR155WM + Zehnder CA155CM & CA155WM Replacement Heat Exchanger elica In most cases the replacement

In most cases the replacement air comes in under the door of the room

Veto Pro Pac MB Meter Tool Pouch (AX3507) - The ultimate efficiency

The videos below explain the unit's commissioning and  ongoing maintenance

Wall/ceiling

Greenwood Airvac were the first people to re-think the aesthetics  of a standard extractor fan when they introduced solid fascias to blend more effectively with modern interiors

Greenwood Vireo HR155CM & HR155WM + Zehnder CA155CM & CA155WM Replacement Heat Exchanger elica In most cases the replacementHeat exchanger cube Filter. As air is taken from the wet rooms, up to 93% of the heat is recovered by the heat exchanger before the air is expelled into the atmosphere at the same time air is drawn in from outside and the recovered heat is then transferred and filtered before it is distributed back into the property. This provides tempered supply air to habitable rooms.