So my home office is in our basement while my wife’s is in a finished attic space. We have a mini split system, but it has to be all heat or all cooling, and many days it’s cold in my office, but hot in my wife’s office.

Thanks to a defunct chimney, I have a pretty decent path from the attic to the basement that could easily accommodate some kind of ducting.

I’d like to make a system that can push air from my office to hers or vice versa as needed. I think this would really help the house in general as cold air tends to pool in the basement.

I’ve seen plenty of ducting booster fans, but I’d like something with a speed (or at least direction) control accessible from the outside.

Does something like this exist? It would need to force air through maybe 30-40’ of ducting.

  • zcd
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    1 month ago

    You could set up a range hood In the old fireplace/chimney to push air upstairs, they usually have a few speed settings. Or you could use an inline fan duct plugged into a variable speed controller. If you go big (500 cfm+? Depends on where you are) you may need to consider adding makeup air as well

    • deegeese@sopuli.xyz
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      1 month ago

      If there’s no exhaust to outside, there is no air lost to makeup.

      Proper functioning of the duct will require the source and destination rooms leave a door open to the rest of the house.