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Post in 'The Hearth Room - Wood Stoves and Fireplaces' started by Jack22, Mar 27, 2011.
You know us so well Phatfarmerbob . . . incidentally I like the bluestone . . . looks nice.
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ploughboy: The limestone was in place long before I was even born, so I don't know how it's been finished or what's been done over the years to it, but it appears to be just polished.
Nice to know my choice of materials has some historic cred. My instinct is to just let the stone be, well, stone. That makes me feel more certain about it. Thanks Ryan.
The guy who is going to be installing my stove told me that throwing a 1" thick slab of granite on top of the rug is sufficient for a hearth pad.
What do you guys think about that? I'm worried it may crack.
You should go w/ the stove specs. It should have an R value for the hearth. Stone has A very poor R value so I doubt that would be safe & up to spec.
Correct, it will depend on the stove hearth requirements. What stove is this for?
Even if it is just ember protection my preference would be to place the stone on a level bed of cement board.
I'll be using a cast iron Enviro M55 FS..
So this is for a pellet stove correct? If so, you're fine, but my preference would still be to cut out the carpet and have the solid stone on a flat base.
That's exactly what I did but took it a step further. Typical granite comes in 1 to 1.25" thickness. I needed an R1 insulation value. I could have put the one piece on top of the insulation substrate panels but I didn't want to go the wood trim route. So we laminated the underside edges with granite strips to double the thickness. This is often done on countertops to give the impression of thickness but control weight. This gave me a pocket to put the substrate in and the look of thick granite.
Granite won't crack if the floor can handle the weight of both the granite and the stove and it's properly supported, meaning even support. I used Absolute Black granite which they claim is one of the hardest available.
Cost was $1300 but they made some big design mistakes that I talk about in the thread (link at the bottom of this post) so I will get that price greatly reduced.
I would love to see a picture or two of your hearth pad.