I have a new cast iron combination fireplace (whole insert, surround etc in one piece) that I intend to fit into our house.
The chimney opening is more than big enough so I will need to backfill the opening behind the new fireback.
The stone walls are all uneven so I am battening out the walls and drylining.
My question is, should I build my wall and just leave the right size opening at the fireplace, then fasten the fireplace to the plasterboard walls at the sides?
Or can I only fasten the cast iron fireplace to a brick wall due to heat? Surely the mantel and side posts dont get super hot like the rest of it? So I am thinking I'm ok?
This is for a solid fuel fire.