My basement is currently under reno. While I have the basement opened up I have the opportunity to add some ventillation to the house. It currently is heated with hot water baseboard heaters and air circulation is next to nil. The place gets stale and the basement especially.

I am thinking a simple inline duct fan pulling air from each floor and exhausting on the opposing end would be enough. I'd just buy an overkill fantech unit and use a combo of a speed controller (triac dimmer) and adjustable diffusers to control the rate in each zone and noise. Thoughts? Should I just get a honking one and have a mixing box in the basement? There would be 3 intakes and exhausts through one inline unit.

There is an old laundry chute I can use to access the main and upper floor from the basement mechanical room where the duct fan would be located. Thanks in advance.