Air "Vents" in bedrooms

[mj170]

In two of my upstairs bedrooms there are air "vents" built into the wall, about two feet from the ceiling (I think the house was built around 1930).
They face the prevailing wind direction and let in a lot of draught.

Can I take the internal facia of the vent out, and plug the hole with breeze block or other suitable "filler" (please advise).

There are no fires of any description in either room.

Thanx
MJ

 

[aaront]

You can take them out but you then have to be very careful that condensation doesnt build up.

 

[masona]

Yes you can,providing you having opening windows in the room.Why not get a open/shut vent cover in front of it,then you can have it open for the summer etc.

 

[oilman]

Why not get a open/shut vent cover in front of it.....

They are only a few pounds from diy stores.[/quote]

 

[Scoby_Beasley]

these

 

[oilman]

Looks ok.

 

[GwaiLo]

"then you can have it open for the summer etc."

Much more important to ventilate in the winter.

1) Lower internal temperatures mean that the air can hold less water vapour.
2) Colder wall mean that the dew point moves towards the inside of the wall making condensation more likely.