Hello all,
I'm having a QuadraFire SantaFe pellet stove installed and need to construct a hearth pad.
Off the shelf pads so far don't meet our design needs within budget so I figured I'd save a bit and build my own.
The specs from QuadraFire require a hearth that extends 2 inchs from the rear and sides and 6 inches from the front of the stove.
At 26in wide by 22in deep (rounded up) I'm planning a 30x30in pad.
The specs also require a pad that provides
minimum 1/2 inch thickness
minimum R Value of 1.0
minimum K Value of .49
Materials I plan to use are
1/2in micore board at 1.1 R
1/2in HardiBacker or Durock Cement Board at .26 R
topped with thinset mortar and slate tiles (not sure what the R value is there)
The Micore and Cement board have a 1.36 R Value which is a little over what is called for and I assume the slate will add slightly to that.
I searched for the k values and found a formula K = 1/r which gives me .73 for K.
Is higher or lower K better, and does this meet the requirements for this pad.
The pad will be placed on top of a 3/4in hardwood floor with 3/4 plywood subfloor.
Am I planning this out correctly?
Thanks for your input.
I'm having a QuadraFire SantaFe pellet stove installed and need to construct a hearth pad.
Off the shelf pads so far don't meet our design needs within budget so I figured I'd save a bit and build my own.
The specs from QuadraFire require a hearth that extends 2 inchs from the rear and sides and 6 inches from the front of the stove.
At 26in wide by 22in deep (rounded up) I'm planning a 30x30in pad.
The specs also require a pad that provides
minimum 1/2 inch thickness
minimum R Value of 1.0
minimum K Value of .49
Materials I plan to use are
1/2in micore board at 1.1 R
1/2in HardiBacker or Durock Cement Board at .26 R
topped with thinset mortar and slate tiles (not sure what the R value is there)
The Micore and Cement board have a 1.36 R Value which is a little over what is called for and I assume the slate will add slightly to that.
I searched for the k values and found a formula K = 1/r which gives me .73 for K.
Is higher or lower K better, and does this meet the requirements for this pad.
The pad will be placed on top of a 3/4in hardwood floor with 3/4 plywood subfloor.
Am I planning this out correctly?
Thanks for your input.