u/Mtnmatt36

Ok guys I’ve been setting up a large room bathroom fan to pull heat from the ceiling near my wood stove on the first floor through to the second story in a large off grid treehouse. I would like to see if there is any merit to an idea that I had. It would essentially be a blend door on a cold air intake for adjusting temperature or running cool air from the outside in a “summer mode” when the wood stove isn’t running.

Short version, will the wye in this system produce enough vacuum to make the cold air intake worth it if the fireplace is cold?