Thanks Begreen...I posted a couple weeks back...here are the suggested pictures and details. I bought a Fisher Grandpa Bear.. built a "non combustible" wall, I think...wall is 5' wide x 6 ' high...one inch air space (maybe 3/4" by the time I got done drilling) Cement backer board with slate attached...nothing is looking too pretty yet. I am considering putting 1 X 6 pine on the walls surrounding my slate. The "non combustible" wall has 3/4 cement backer board with slate attached. It hasn't fallen down yet. Whew. There is between 3/4 and 1" airspace behind. It is raised up at least 2" off the floor to let air flow behind. Stove is 35.5" to combustible wall, which is mostly windows. Hearth pad is 6' x 5' with stove in the middle, 26" from stove feet (threshold) to end of hearth pad. 3/4 cement board under the same slate. I plan to finish the rest of the room in 1 x 6 pine, tongue and groove, wall and floor. I wonder if the non combustible wall I built is not enough? I have been trying to learn the Fisher stove and heat output.... thoughts?