Loud cold air return

[elizilla]

In the room I am using as my home office, there is a cold air return duct in the floor. It's very close to directly above the furnace, and it's really loud when the AC comes on. I suspect it will be loud when the heat is on, next winter, too. Anyone have any idea what might be done about something like this?

Comments

[a smith (from livejournal.com)]

ohhhh. ok. that's an unusual configuration... but it is, after all, Michigan. :)

[pi3832.livejournal.com]

It's more about all the renovations/improvements that have been done to the house, and that they seem to have been done right (at least, AFAICT). Which is why there are plenty of fresh-air returns. And they're actual ducts, not just voids between studs in a wall.