recently had new fire fitted - living room has low level air vent which is no longer needed (on corgi installers advice) and looking for advice on best low cost/highly effective way to seal up, to prevent draught in living room, as front of property is exposed to all weathers and can prove v. draughty and noisy
I presume you now have a balanced flue fire?
If so squirt a can of poly foam into the space, that will give you a perfect seal, that is far warmer than anything else.
