tahoejeff
join:2001-07-01
Wisconsin Dells, WI
clubs:
1 edit | moving heat from woodstove
i have a woodstove that makes my living room verrrry warm, yet the kitchen on the other side of the wall is cold.
edit: to clarify, that red object is the woodstove.
i'd like to cut a hole in the adjoining wall between studs to allow some heat transfer to the kitchen. the door on the kitchen side goes out to an unheated porch, and remains closed in winter unless someone enters/exits. at the left end of that wall is a hallway leading to kitchen, bedrooms, and bath. there is about an 18" wall extending down from the ceiling here, which blocks the warmest air from leaving the living room.
some thoughts: frame the hole with 2x4's to keep the heat from going inside the wall, and put a heat register vent cover on each side of the opening. would this passive system transfer much heat? i'd do it around 6 feet off the floor, as the heat concentrates closer to the ceiling.
purchase a bathroom ceiling fan and install in the opening for better heat transfer. i know these are made of plastic. could they take the heat without damage/danger?
please comment on this. is there a better method? i need to keep this project under or close to $50.
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The Geek Shall Inherit the Earth |
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robbin
Premium,MVM
join:2000-09-21
Leander, TX | I would use a duct booster fan. Here is a link -- they come in different sizes.
»www.smarthome.com/3011.html |
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tahoejeff
join:2001-07-01
Wisconsin Dells, WI
clubs:
| thanks robbin. i guess that could work. the housing length is 8 inches, and the wall is about 4 inches thick. i'd basically be throwing away the housing and putting a $40 fan in my own sheetmetal.
is there anything else that might be better?
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The Geek Shall Inherit the Earth |
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china crisis
join:2003-05-28
1 edit | reply to robbin
Something like this will move alot maore air than the above. 200cfm compared to 60cfm
»www.homedepot.com/webapp/wcs/sto···Num=8125 |
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tahoejeff
join:2001-07-01
Wisconsin Dells, WI
clubs:
| thanks CC. that looks promising. i might have to drive up to home depot this weekend. a lil pricey for what it does, but it would probably look much better than the cobbled up mess i'd end up making.
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The Geek Shall Inherit the Earth |
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garys_2k
join:2004-05-07
Farmington, MI
 ·Future Nine Corpor..
·Vonage
| reply to tahoejeff
I've had good luck with an older model of a heat "reclaimer" like one of these: »www.vogelzang.com/MiscAcc/hr6_reclaimer.htm you just have to be sure that the flue temperature stays high enough. |
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weasledog
join:2001-04-12
Vermilion, OH
| reply to tahoejeff
I just got two of those thru wall fans this year to push warm air to the back bedrooms.
I tell you what they work great, got mine from here »www.iaqsource.com/product.php/su···gory=885
If you have a ceiling fan in the kitchen it will work even better to bring the warm air down.
My wood burner is my main heat source, those fans are worth every penny. |
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tahoejeff
join:2001-07-01
Wisconsin Dells, WI
clubs: | weasledog, are they pretty quiet? i know they have a hi and lo setting. do you run yours on hi most of the time?
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The Geek Shall Inherit the Earth |
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jengu
join:2002-04-26
Lake Placid, NY
1 edit | reply to tahoejeff
Here is a "ThruWall Transfer Fan" that is made for this purpose. »www.homedepot.com/webapp/wcs/sto···Num=8125
Edit: Same fan as weasledog. Sorry. |
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Kylemaul
Lovin' My Firefox 1.5.x
Premium
join:2001-03-30
North Port, FL
clubs:
1 edit | reply to tahoejeff
Why not just turn the thermostat to "Fan"? Should distribute nicely through your whole house!
edit: HVAC filters woulds need replacement much more often doing this... |
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tahoejeff
join:2001-07-01
Wisconsin Dells, WI
clubs:
| kyle, that's a good idea that i'm aware of, but hadn't thought of...
my cold air return in that room is at the far end of the room, partially blocked by a couch. i might still have to give this a try. thank you.
still headed to home depot friday night if the ice storm hasn't hit yet.
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The Geek Shall Inherit the Earth |
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Kylemaul
Lovin' My Firefox 1.5.x
Premium
join:2001-03-30
North Port, FL
clubs: | Depending on the routing of your ducting and the location of your HVAC, a damperable 'hot air return' installed/added closer to the stove might be really nice...
Lived in a house growing up that was heated in just this fashion--very toasty! |
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tcope
Premium
join:2003-05-07
Sandy, UT
 ·Comcast
| reply to tahoejeff
I don't see the "heat reclaimer" as doing much. A stove is very efficient as it is. I think money would be better spent in placing a $20 fan near the stove itself.
My stove is in the basement. I have a fan blowing air over the stove and up the stairs. |
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weasledog
join:2001-04-12
Vermilion, OH
| reply to tahoejeff
Tahoejeff, They are not that bad, maybe as about as loud as a stand up fan.
The one closest to the burner is set to low and the one farthest is set to high. Keep in mind I am pushing the air for a good eighty to a hundred feet, In your situation the fan on low should be fine.
I have tried running just the fan on my HVAC and that didn't
work that well, I guess it would depend on the layout of your house. |
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dandeman
Premium,MVM
join:2001-12-05
Chapel Hill, NC
 ·AT&T Southeast
4 edits | reply to tahoejeff
Using the HVAC air handler to recirculate the heat can work very well, but the intake MUST be positioned to do a good job of capturing the heated air near its peak temp. Otherwise you feel a lot of cold air blowing around..
This system in my basement does a fine job using the HVAC main trunk cold air return.. It has a thermostat controlled motorized diverter valve that switches to the overhead (over the stove) air intake, once the air above the stove gets hot enough to make it worthwhile..
Initially I had the air intake at the diverter valve, but it was too far away to pick up only the heated air.. After I extended the air intake to be located directly over the stove, it made a huge difference.
Note the size of the duct  it is a 25" x 14" with a 25" x 25" filter intake.. This is an internally insulated, metal ducting, normally found only in commercial buildings. I liked it so much in the commercial building I used to work in, that I used this style duct work when the house was built. Had some friends in the commercial HVAC business that installed the original ductwork.
This particular heat pump has a variable speed air handler fan that can be set to run the fan at idle speed (so slow you can count the motor revolutions) all the time when the normal heat is off. That's fast enough to redistribute the heat.. Otherwise it can peak up to 1320cfm at max speed.
This feature is very useful in an open architecture, high ceiling house to keep the temperature uniform throughout the house. |
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Kylemaul
Lovin' My Firefox 1.5.x
Premium
join:2001-03-30
North Port, FL
clubs: | nice setup! |
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koma3504
Advocate
Premium
join:2004-06-22
North Richland Hills, TX | reply to tahoejeff
Just crack the window in the cold room just a little bit.
It will draw the ehat that direction. Kinda cool acually how it does this. |
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ttiiggy
Premium
join:2001-03-27
| reply to china crisis
I didn't see a noise output level listed. Probably doesn't matter in your location.
It might matter if it was in a finicky somebody's bed room or office where they want it quiet.
It also might allow conversations or other sounds/noises to travel between rooms... |
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