Yes !.., sorry it's another wood burner query
Move just moved & there is a gas fire with flame effect in living room.
Hole thru wall horizontally to a flue up outside wall.
I would replace that with double skinned flue but I'm unsure about hearth ... Wife and I both want a plain slate effect or similar no edging etc.
I've read needs to be 860x860 I think & 12mm thick .
Think the rear / back of fire had to be min 150mm from wall .... I've seen pics of freestanding without any rear hearth or vertical plinth on wall but I would have thought better with?
Also how would you fix that to the rear wall without cracking or breaking?
Any advice regarding free standing accepted