A common problem, I know. The two 9"x 9" air vents in our lounge -
necessary because of the open gas fire - allow through a blast of cold
air in windy weather. I vaguely remember hearing about some kind of
baffle, fitted within the cavity wall, which allows the air through
but prevents draughts. However I can't locate anything like this.
Did I imagine it?

Richard.
http://www.rtrussell.co.uk/
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