Heard this when talking with a local dealer about possible clearances for a woodstove. I have a brick wall with drywall directly behind it. Dealer said that would mean the wall is considered combustible unless spacers are used between the surfaces and an air gap is present. Turns out there's 1/4" to 1" of airspace between them, so I assume I'm ok either way. However, I'm curious about the requirements for this, and wondering what the basis/spec might be for it.
Thanks in advance,
John
Thanks in advance,
John