How thick does the floor protector under my wood stove need to be?
August 29, 2010
I want to know if I can put a layer of tile backer board on top of my wood floor, slate tile on top of the backer board, and my wood burning stove on top of the tile or does the tile need to be elevated above the floor? The stove is a Drolet HT-2000 The owners manual is unclear on this it states "Your wood stove should be placed on a non-combustible surface. The floor protector should
be under the stove, eighteen inches beyond the front and eight inches beyond each side of
the fuel loading and ash removal opening."
Thanks
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Posted in Slate Floor Tile
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August 29th, 2010 at 12:13 am
high quality slate is an excellent choice! but backerboard is a far cry from a proper foundation for any stone or tile. backerboard has only been used for a decade or so now and we’ve been tearing it out left and right. what you need is a good mud-bed. i would suggest about 3 inches thick and make sure the slate is s1 grade. this is a permanent install. the slate they sell at the big boxes is less than s3 grade and will crumble apart under a stove. no real tile guy out there even uses backerboard, ESPECIALLY on a floor and ESPECIALLY with a wood stove on top. good luck!
August 29th, 2010 at 12:13 am
On top of those dimensions, your local code requirements must be met, so check with local building inspection office for what is legal in your county/State.
August 29th, 2010 at 12:13 am
Thickness isn’t of question here. It is the combustibility of the material that is of question. Tile backer board covered by slate tile is non-combustible.
The other measurements are for how far the floor should extend beyond the stove. The floor should go from the back wall, or corner (follow the directions for placing the stove the correct minimum distance from any walls) and should extend eight inches to the left and right of the fuel loading door and ash removal openings as well as 18 inches directly in front of these doors, according to what you have written. these are minimum distances, you can exceed them.
There is likely a further requirement for having non-combustible wall surfaces to the side and back of the stove as appropriate for your installation – most people just tile the wall.
There are also going to be local codes that determine how you vent the stove to the outside. You’ll have to check with your local code enforcement agency where you live for those.
August 29th, 2010 at 12:13 am
buy a standard stove board, its around 1/2 inch thick and fire proof it has a metal covering also.
have one under my wood stove for the last 3 yrs, and my floor is wood
August 29th, 2010 at 12:13 am
make sure the stove has a sheet metal piece (with a 1" space) under the whole bottom. This keeps the floor from getting so hot you can’t touch it.