Saturday, 22 January 2022

Minimum clearance requirements for direct vent furnace

Hello all. First post, so I won’t be able to submit a picture, but I’ll try to describe the situation as best I can.

We just bought a home that was built in 1991. The finished basement has a doorway going into the utility room right next to the furnace. This is in addition to the main entrance to the utility room, which is found by found by going around the basement, through two rooms to get to. I would like to put a door into this second doorway next to the furnace, as the unit is quite loud when operating. Also, there’s a crawl space in the utility room that leads out. We have animals who feel it’s their duty to try and escape as frequently as possible, so not sealing the space with some sort of barrier isn’t an option.

It’s a direct vent furnace, with 2 3-inch pipes going out to the exterior. If I put a door into the doorway, there will be maybe 5 inches of clearance between the door and the unit. My question is, will I be causing any problems by putting a solid door (for noise mitigation) there? That would be my preference, but of course I don’t want to cause any safety issues or operational difficulties with the furnace. If necessary, I can install a louvered door, but the furnace really can be quite loud, so I’d prefer to block as much noise as I can.

Sorry if this is confusing - I’ll be happy to add a picture after I reach the 7 post minimum. :)

Will


source https://hvac-talk.com/vbb/threads/2235782-Minimum-clearance-requirements-for-direct-vent-furnace?goto=newpost

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