Unharnessed heat
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Post Fiend
Joined: Oct 2006
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From: Where's my map???
Unharnessed heat
I just completed finishing my basement. At this moment there is no mechanical heat down there. I put 3/4 vapor barrier styrofoam,followed by 2x4 const. R13 insul. and 1/2 in. rock. The boiler keeps it pretty warm but will not heat it fully.
When the heating season is over. I will be moving the boiler and water heater to a new location. So I do not want to run any new copper just yet. I have about six feet of flu pipe coming off the boiler running at 45* before it taps into the chimney. I am thinking about putting a duct fan attached to a saddle tee. This way i could get some of that direct heat pushing out a little farther. Sort of like a stove pipe heat exchanger with out actually being inside the pipe.
The only problem I can see is not having enough draw air from the saddle tee.
Another way would be to slide a 8 in. tee over the 6 in. pipe and attache with some sort of stand offs. Wadda ya think? Any better ideas are most welcome.
Thanks, Frank
When the heating season is over. I will be moving the boiler and water heater to a new location. So I do not want to run any new copper just yet. I have about six feet of flu pipe coming off the boiler running at 45* before it taps into the chimney. I am thinking about putting a duct fan attached to a saddle tee. This way i could get some of that direct heat pushing out a little farther. Sort of like a stove pipe heat exchanger with out actually being inside the pipe.
The only problem I can see is not having enough draw air from the saddle tee.
Another way would be to slide a 8 in. tee over the 6 in. pipe and attache with some sort of stand offs. Wadda ya think? Any better ideas are most welcome.
Thanks, Frank
Fleet Mechanic
Joined: Jul 2005
Posts: 1,464
Likes: 103
From: Staten Island, NY
Just be careful how much "free" heat you pull off the flue pipe. If you lower the flue gas temperature too much you can cause a loss of draft up the chimney (assuming you don't have a forced draft system) and you can cause moisture to condense out of the flue gas stream. That moisture is usually corrosive.
They also sell an aluminum finned heat exchanger that you can slip over the flue pipe. No forced air but it increases the heated surface area.
They also sell an aluminum finned heat exchanger that you can slip over the flue pipe. No forced air but it increases the heated surface area.
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Post Fiend
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From: Where's my map???
Thanks for the warnings. It is not a concern tho. The chimney is going to be demolished this summer. It is totaly shot and runs smack in the middle of the house.
Prime realestate that I need to recoup. I am not talking high CFMs just something to move the air a little, tied in with a thermostatic switch set around 180* on. I will look into the finned convection heat exchanger. Sounds like a good idea. Thanks pupnDuck.
Frank,
Prime realestate that I need to recoup. I am not talking high CFMs just something to move the air a little, tied in with a thermostatic switch set around 180* on. I will look into the finned convection heat exchanger. Sounds like a good idea. Thanks pupnDuck.
Frank,
Posting Legend
Joined: Sep 2001
Posts: 30,255
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One of the things I did that made a huge difference in my basement was providing a combustion air inlet for the furnace. I made a plenum box that fit over the front of the heater and ran duct work 2" bigger than the flue from a vent on the side of the house. The change in temperature in the basement was nothing short of a miracle. It also made a difference on drafts and humidity all around the house.
Post Fiend
Joined: Oct 2003
Posts: 6,214
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From: New Jersey
The easiest way to heat a basement is to install a "server farm".
http://frederic.midimonkey.com/temp/...arm-medium.jpg
My basement is about 75 degrees in the dead of winter, and about 90-100 during the summer.
ROFLMAO.
http://frederic.midimonkey.com/temp/...arm-medium.jpg
My basement is about 75 degrees in the dead of winter, and about 90-100 during the summer.
ROFLMAO.
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Post Fiend
Joined: Oct 2006
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From: Where's my map???
Geez frederick; If you lived on Long Island. You would need a second job just to support your elec. bill.
Frank
Frank
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Post Fiend
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