Originally Posted by Obsi
I'd have thought that one a bit obvious :P
A lot of people have lost houses trying to set up a lovely decorative fireplace (you also have to take diagonals into account)... it's best to have 2-3 blocks in all directions of something non-flammable.
(and just ask Bazz about the flammable properties of lava
but I shoudl stipulate, it will even heat through stone, etc
so you cannot "shield" from flame