OK. I have been lurking for a while, and finally decided to join. I am in the process of planning a hearth for my woodstove. i recently purchased a hearthstone III for $300, and its in perfect condition. it was installed into a family friend's home years and years ago, and they only used it a handfull of times. so its really nice. anyway, i plan on installing it in to the existing old woodburning fireplace in our house. i have already purchased the chimney liner kit and insulation. now i have to build the hearth.
my idea was to put down a layer of durock. then build the frame out of bricks, mortared to the durock. then sandwich another sheet of durock on top. then finally cover it with 1.5 inch slate or flagstone. i plan on supporting the stove fully on brick, so the durock wouldn't have to support any of the stove's weight. the stove's manual requires only 4" of brick mortared to 28g sheet metal as a hearth. the durock, brick, mortar, stone, and dead air space exceeds the r value required. my question is this: is this a good design for a hearth?
the reason i am choosing to build the frame from brick, and not 2x4s or metal studs is that i have an abundance of brick that i need to use. however i do not want a brick hearth because it would not match the stone fireplace in my house
my idea was to put down a layer of durock. then build the frame out of bricks, mortared to the durock. then sandwich another sheet of durock on top. then finally cover it with 1.5 inch slate or flagstone. i plan on supporting the stove fully on brick, so the durock wouldn't have to support any of the stove's weight. the stove's manual requires only 4" of brick mortared to 28g sheet metal as a hearth. the durock, brick, mortar, stone, and dead air space exceeds the r value required. my question is this: is this a good design for a hearth?
the reason i am choosing to build the frame from brick, and not 2x4s or metal studs is that i have an abundance of brick that i need to use. however i do not want a brick hearth because it would not match the stone fireplace in my house