My friend has a detached 1 1/2 car garage that is used as his man cave. He has an old homemade(presumably anyways) earthstove looking stove. Recently I've been over there a couple times and mentioned my concern for the wall behind he stove. It's the exterior 2x4 wall with concrete board over it. He, at first, shrugged it off thinking it was fine. Today he mentioned shooting the wall with a temp gun and it was 250 ish. I think we will adjust the stove slightly away from the wall(it's about 12" now) but will add some steel studs for an air space and then strongbarn Tin is his preferred covering. Any other advise? The stave came from his father in law so he installed it in this garage just like it had been in the fil's house while in prior use.
I used the steel studs for the same purpose once. I laid them flat against the wall so that way there would be about 1 1/2" of space from the wall. then I screwed a cement board into the wall. (Tin will work just fine, cement board was a lot cheaper) Attached the screws in the center of the studs so there is support once they tighten up. This guy put his on opposite what I did. Just as fox9988 mentioned above, be sure to leave an gap at the base of the floor and once again at the top of the "shield". any heat behind the shield convects very nicely from the bottom through the top. I had mine against knotty pine paneling (about 10" away) and never had any heat problems with a non epa stove running. Remember also that the vent pipe will be hot and should also be spaced accordingly for clearances or heat shield allowance. Unfortunately, with a homemade stove or even a non epa rated stove, and the structure being a garage, he may have problems getting insurance for it. If he doesn't mind, how about some pics?
Thanks for the write up! Next time I'm over I'll get some pictures. Not sure on the insurance thing either. Small town and we have different insurers. When in bought my house, the po had the same company as I do (State Farm) and my agent didn't make a deal about having a stove. I've got an email saying we're covered with it.... it's all to code as far as I can tell, but there's little to no code enforcement here and not for wood burning appliances. The same friend has a zc fireplace in his new addition on the house and it was never inspected. Just installed by a licensed installer. Sent from my iPhone using Tapatalk
Cement board transmits and conducts heat very well. As is, it needs to be 36" away from wall. Solid brick in contact with the wall allows 33% reduction from the required 36 inches without shield. Along with 1 inch air space behind shield, the fasteners can not be in the center line of stove.
