Is it advisable for propane furnace to have an exterior air intake for combustion?
The propane furnace is located in crawl space, which is also open to the basement.
I was considering Martin’s advice to seal up the crawl space and it occurred to me that might be an issue for the propane furnace, which currently does not have an air intake for combustion. (This is a water based furnace so come that is the only reason for air intake).
Come to think of it, even if the crawl space remains vented, shouldn’t the propane furnace be drawing air from the outside?
I am not concerned here just with the code requirements, but want what’s best, even if it goes beyond code requirements.
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