Can a natural gas furnace go on a plywood floor?

toddmanqa

As part of a basement renovation, I'm planning on putting down 1.5" foam sheeting covered by 5/8" plywood onto my cement slab.

I have a natural gas furnace (not a stove)--can I place the gas furnace directly on the plywood, or must it go on some sort of non-combustible surface?

Note: The furnace is pushing the air up vertically.

If you could reference a rule/building code/etc., I would appreciate it.

Thanks.

beenthere

If its not UL rated to be set on combustible flooring. Its not permitted by any code.

So you need to look at its install manual to find out.