Hello
I have a wood stove in the basement capable of 70k BTU. I'm building a heat exchanger for it. I've seen similar configurations on other stove including a corn stove from Amazablaze and Cornflame. Most of these heat exchangers have a 12" round pipe for the heat exchanger exhaust...but I'm not sure what the CFM is of the blower that drives it.
My question is for a 1500 sq ft. home, 2 floors what size blower/duct would I need to do the 1500 sqft of space?
I'm aware of the branch pipe reduction and some formulars to figure out CFM per room and run.

I should also mention that this systems will end up being 3 zones, control by solanoid control damper valves to heat two rooms in the basement, 2.5 rooms on the 2nd floor and 3.5 rooms on the 1st floor. All of the zones don't need to be on at the same time, but it would be nice if it had the air flow to do this.

I was thinking of using a 1000CFM blower for the system. When I figure out all the sq. footage it seems about right...but I'm concerned that a 1000 CFM blower may be a bit noisy.

I've worked out the way the thermostats would work, as far as the controls and the way that the damper valves would work.....also the required duct work for the proper air flow per room....I'm not sure though if 1000CFM is overkill...or under kill at the plentium.

Thanks
Chris

You better get a engineer to do the calculations OR take a SWAG and put a 1000 CFM blower on it using a multi speed motor. That way you can raise or lower the motor speed and CFM to your liking.

Looks like a 1/3 hp to me.