I need to build a hearth for the stove. I read that the stove requires at least an R2 between the bottom of the stove and combustible materials. I read somewhere about an insulation material that could be used, I asked at Lowe's Home Improvement and they had no idea what I was talking about. I need information on how to build my hearth. I would like to keep the hearth as low as possible and use something nice for the surface that will look nice.
What material is the floor? If concrete, you needn't do anything but plop the stove down the appropriate CTC from the wall. I used Wonderboard from HD, or you could also use Durock. They're both cement board type material, although the "New Gen" Durock has something else in it.
From the manual: "The approved protector board should be large enough to provide a minimum of eight inches (8”) behind the unit, eight inches (8”) on either side and sixteen inches (16”) in the front where the door is located. This stove requires a minimum of 42.0” D x 41.25” W floor protection." I'm working on some more info for 'ya. Ok, so you need a hearth with an R-value of 2. Again, from the manual: "Installation on a Combustible Floor If the appliance is to be installed on a combustible floor or a combustible floor covering, it must be installed on a 1” thick non-combustible millboard floor protector or a durable equivalent, with a “R” factor of no less than “2.” The pad must be installed beneath the unit, extending 16” (U.S.) on the side equipped with a door, and 8” on all other sides. The pad must cover any horizontal chimney connector runs and extend 2” beyond each side."
I think the newer Durock has an R-value of .39/1/2". Tile only adds about .02. There's also another material called Micore that's got a high value of a little over 1 for 1/2". There's a Micore 160, and also a 300. Might have to do some to find it. You'd need a piece of Durock or Wonderboard on top, then tile or whatever, since the Micore is fairly soft.
The hearth was made with wood framing; I don't think the R value would be high enough for my stove as it states between the stove and combustible materials.
If you include a cement board as part of the assembly, don't use the grey colored board for tiling. It reeks when heated up. I used the hardibacker, sand colored board and it is great. You need air to flow between layers to get effective heat break. I used steel studs and hardibacker to make channels with openings and exits at the top and bottom for air circulation Works great on the walls. You would need to have the air channels be continuous from the floor to the wall so the wall could move the hot air up, thus drawing cool air from the floor in front of the stove.
This is for the 13NC, correct?? I built a frame with 2x4's, covered it with 1/2" plywood, then two 1/2" layers of micore, then 1/2" of durock and finally porcelain tiles. The two 1/2" layers of micore gave me the R2 value. The durock gave me a bit more. My hearth is about 6" tall. A picture..........
Mine is a 30nc. Wood framed platform 2x12's sheathed with plywood, four 1/2" layers of durock next gen, then tile for style. I trimmed out the platform sides and rim with "fake" beadboard and 1x3 clearish pine boards.
Got any pics, hoverwheel? I'm in the process of building my hearth. The stove only requires a non-combustible surface. I used a 2x4 frame, with 1/2" plywood, 1/2" durock, and 12" square slate tiles. I'm trying to figure out what to do with the sides...
IIRC; I had to do multiple searches and had to keep "refining" my searches until I could find/buy micore retail!! Just saying..................
I used a couple of these Shop IMPERIAL Black Stove Board at Lowes.com for a while until I was able to build my hearth this summer. You just have to look through them as they have a couple different ones some are R2 some are not. Also Kimberly where in VA are you If youre close Ill give you one of mine that Im not using anymore?
You might get some ideas from this thread if you watch it, ask some questions, it is a mobile home Mobile home hearth project | Firewood Hoarders Club
That's a good suggestion although I'm not sure what rules are for a mobile home. The ones I saw at Tractor Supply were one and a half R, two stacked up 3r you can also use those on the wall
These are also available not cheap but maybe you can find one on Craigslist,or put a wanted ad on there for one, when I bought my stove used the guy was selling one of those type for a hundred bucks, I didn't need, a used one might be less money than building your own. Hearth Pads - Stove Boards - Fireplace Hearth Pads | Northline Express
I've got some back trouble so elevated the hearth to reduce bending over for loading. Let's see if I can link these... 2"x12" frame: (don't judge me by the old paint color scheme... it was already there) 1/2" ish plywood: Four layers of durock next gen: Tile complete: And finally in operation. Still needing a paint job on the trim:
