Finishing around furnace

Old 03-20-03, 01:46 PM
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Finishing around furnace

Hey all. First post so set me straight if I'm outta line.

Laying out my basement, and can't seem to find an answer I'm looking for. One of the walls in my design runs along side of my gas fired furnace. I want to keep the dimension from the furnace as small as possible (2"-4"). From a service standpoint the wall won't cover any access panels of the furnace. However, I'm concerned about codes concerning combustable materials and minimum distances. Hope I'm clear enough, and thanks in advance.

Old 03-20-03, 02:37 PM
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The clearance requirements of a particular furnace are given in the installation manual for the furnace. Usually, furnace installers leave that manual near the furnace.

There may be little to none rear clearance, very little side clearance, but there is almost always a healthy requirement for front clearance (usually 36"). Check with your building department for local requirements.

Be sure you check the requirments for fresh (outside) combustion air. These requirement can be substantial, and are extremely necessary for safety. Such requirements are also available from the installation manual and/or local building department.
Old 03-26-03, 04:03 PM
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If it is a warm air furnace, many times they have a label inside the burner compartment with the clearance data on it. The minimum is usually 6" from sides, but don't build without getting some confirmation.

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