i have seen other posts that mentions these, but dont really answer my question.
I have a 3 bed house, which has cavity walls, in all rooms there are fixed grills which are in side and out.
We have 2 problems with the house, first the house is very cold, the heating cant even the house to full temp, i set the thermostat to 30 degrees, but the house will never go above 21 degrees.
Also, the walls are very cold, some so cold that they have wet on them in the mornings, and when i painted them, it took over a week for the cold bits of the wall to dry!
Second, is the is always a draft in the house, i have tracted this down to the vents. The ones in the main room are not too bad, but there is one in the gas cupboard that when you put your hand in fromt of it, is just like being out side.
So, can i fill these vents/holes in the gas cupboard, or will it cause problems, and im looking at getting the cavity filled, will this stop the cold walls?
thanks in advance for your help.