Q&A Gas Fireplace on concrete slab

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QandA

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Nov 27, 2012
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Question:

I am planning to install a gas fireplace in a room with at concrete slab. I built a chase with a concrete slab. I plan to lift the fireplace about 3/4" off the slab. What is the best material to place on the slab to serve this purpose?



Answer:

Cement board like Dura-Rock and Wonderboard...usually sold for tile backing. It's about 1/2" thick, so you'll have to raise 1" or so by doubling the board.


Many gas fireplaces are OK sitting on wood, so plywood may be able to be used. Check your manual.
 
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