Fireplace opening

[esa1178]

I recently removed my rock fireplace. Installing a new mantel and wall. Previously it had a heavy iron bracket supporting a chain mail curtain. Now the opening is too high and smoke escapes into the living room instead of escaping thru the flue/chimney. I am going to use hardibacker to make the opening smaller. What is the standard dimensions for a fireplace with gas?

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Many thanks!


Mark

 

[webbie]

The opening height depends on a lot of things (flue size and height, etc.) but most are 30" or under. Very typical fireplace sizes are 30-36" wide and 26-30" high.