I am about to fit a new cast iron fire place (solid fuel), its the sort that has a built in fire basket behind.
I have opened up the original builders gap (approx 36" square and 15" deep). The man in the shop suggested I fill the gap between the new fire basket and the builders gap with rubble.
Does anyone know why I need to do that? What would happen If I just put the new fire place in and left a void behind?
Cheers
I have opened up the original builders gap (approx 36" square and 15" deep). The man in the shop suggested I fill the gap between the new fire basket and the builders gap with rubble.
Does anyone know why I need to do that? What would happen If I just put the new fire place in and left a void behind?
Cheers