Hello everyone! I own a house built around 1960 and it has these ventilation boxes on the wall. A larger one in the living room, which is wired into the mains (see 1st pic below) and blows fresh air into the house. And then 3 smaller units in the bedrooms that are mounted higher up and don't have any wires or switches (see 2nd pic). I assume that back in the day, they were just an alternative to opening a window and allowing fresh air in? Could I simply remove them and place a ventilation grill over them? Does anyone know why the smaller bedroom units have no visible wires or switches? How would they work? Thanks in advance!
Vents are for gas but you have old electric heaters? I've filled a few vent holes with bricks to tidy as not needed now. Maybe get gas looked at and see if vents are not needed and get electrician to remove wires and make safe. Get rid of it all
The property has gas central heating but would probably have had a fireplace in the living room when built. I assume that the bedroom units have had their wires removed and are just redundant. Yes, an electrician will be needed to remove them, but I was thinking of just placing a vent (grill) over the hole, rather than brick it up.
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