18 months ago I had a new boiler fitted in my utility room.
I have noticed that there is a slight smoky film on the white ceiling and at the top of the walls. Is this normal, and should I expect some residue especially in a small room.( approx 7ft by 10ft)?
I have noticed that there is a slight smoky film on the white ceiling and at the top of the walls. Is this normal, and should I expect some residue especially in a small room.( approx 7ft by 10ft)?