Oil Furnace Outside Air Supply

Does anyone have any experience with this mod? Are there any downsides to using outside air? Does anyone have the part number of the kit?

The furnace is located in my 10x15 finished basement. The house was built 15 years ago and has reasonably "tight" construction. However, I am considering this mod to help keep the basement a little less drafty.

Whatdayathink?

Thanks in advance, Tim

I think you better know what your doing before messing with a fuel fired furnace combustion air. There's too much consideration to cover here.

Your 10 x 15 room sould be considered a utility room and not a basement as it has too small of square footage for a living space with a fuel burning appliance installed with-in the same space.

However Code does now require a outside fresh air source for combustion air, maybe since 1982? I can't remember the exact date and your local building dept would have to been using the UBC at that time for your current installation to meet that code.

Your local building inspector could tell you what they now require and give you drawings to follow for a typical installation. Sometimes the local fire marshall also has this info.

Only the furance mfg can give you the required cfm of combustion air, however sometimes local codes will exceed mfg minimum requirements based upon BTU input and fuel type.

T_Bone

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