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.
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
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.