I have a wood burner in my basement that radiated heat up to 80 degrees nicely, but the heat wasn't moving to the upstairs living area. I fabricated a heat shield to capture alot of the heat off of the wood burner. Here is a pic of it:
I capped off the far end and put a 6 inch piece of ducting and then hooked it up to a furnace blower just to see if the heat shield was effective at trapping the heat and funneling it to the ducting. Well, it works fantastic. I had the furnace blower pointed at the stairs and I was able to get the upstairs up to 77 degrees without having any type of ducting. Now, I need to get the heat upstairs. I cut a hole in the floor and inserted a register and ran 6" flex duct from the register in the rafters and down to my heat shield. It's approximately 16 feet of flex duct. I want to use an inline fan to connect the duct and the heat shield but I don't know what cfm fan I need. I want the fan to be strong enough to suck the air from the heat shield and blow it the 16 feet to the register, but I don't want to "over-fan" this project and wind up with a really noisy fan that isn't necessary.
I would welcome any suggestions on inline fans with 6" inlets & outlets and/or what cfm is necessary for this project. I was looking at the Vortex fans, but 450 cfm seems like overkill.
Thanks for all of your help!