Moving air to eliminate cold spots

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ponyexpress976

nipple fritters
Joined
Feb 17, 2008
Messages
1,394
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347
Location
new tripoli, pa
In the spirit of this forum and to say thanks to all that have helped me by passing along information, here is my offering. I'm heating a little over 1800 sq ft with a Lopi Freedom wood burning insert. House is a typical layout bi-level. Wood stove is at one end lower level and all but one of the bedrooms are upper level partially over an unheated garage. As you can guess the bedrooms upstairs tend to be a little on the chilly side. With two kids (1 and 3), letting the rooms get cold is not an option. In an attempt to get some of the heat from downstairs up near the bedrooms, I cut a hole in the floor/ceiling thinking natural convection would help. I added a cheap vent booster fan that pulled air up but was unhappy with the results. Never got more than a season out of one of those fans before something failed...and they were never all that quiet to begin with. Well, it came time to replace the fan once again. In researching the problem, a member here also proposed that it is much easier to move cold air out then it is to move hot air in. That got me to thinking maybe I had the set up backwards. Maybe I should try pulling the cold air down through the new "vent" rather than hot air up....since the hot air would naturally go up the stairs (a much larger "hole") anyway. That's when I came across the Tjernlund RB10 booster fan. This little beast can move some air! While no fan is silent, this is unnoticeable compared to some of the other fans I've tried. It uses a squirrel cage rather than a bladed design. Long term will have to wait but so far I've been impressed. Moving the cold air out is the way to go!
 
I have a tri level and have found using a fan to blow air upstairs doesn't help. What works best for me is to get the lower level really warm and the hot air just flows up both stairways. My upper bed rooms are nice and warm. My mid level ( kitchen, living room, dining room, are the coolest but comfortable.
 
Hey, thanks! Went to that company website, they have something that would work for my purpose, I want to take hot air from this room where the stove is, and run it down under the floor and over to the other end of the cabin where the kitchen/bathroom/plumbing is. I'd just use a regular on/off switch and put it on cold below freezing nights. One of those vent fan things should work fine, and I'll scrounge up something to use for ductwork,, maybe just some 4 inch pvc or something.
 

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