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Old 10-23-2009, 07:11 PM   #1
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wood furnace advice


hello everyone

im new to this site, an di hope it will be a great one, i have a question for someone, we have just moved fron the uk to canada, and we have a wood furnace in our basement, i hav ebeen told its best to have a window open very slightly to alow air to move is this correct, or am i letting in cold air for no reason

many thanks

paul

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Old 10-23-2009, 08:07 PM   #2
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wood furnace advice


Welcome to Canada.
Your wood furnace definitely needs an air source.
A permanent ducted combustion air would be the best.

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Old 10-23-2009, 08:32 PM   #3
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The furnace and chimney , especially the chimney needs proper cleaning and inspection by a chimney sweep and the furnace inspected and cleaned. Creosote fires in chimneys have burned down many homes. Where in Canada are you?
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Old 10-23-2009, 09:08 PM   #4
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hi

thanks for contacting me, im in nova scotia, the furnace is in the basement, which is half completed, so leaving a window open is a good idea ?
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Old 10-23-2009, 09:38 PM   #5
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The best solution is to have a 6" insulated pipe installed to bring in combustion air for the fire. You would need a 6" hole drilled in your outside wall and the pipe installed near the furnace and dropped down near the floor with a gooseneck trap/like a trap under a sink installed in the pipe. Otherwise you will have a very cold room with the window open and waste a lot of heat and have security issues. Try phone several local furnace or sheet metal shops and ask for what I told you exactly. If they don't know what I said try some others. This is very standard and common practice.

Last edited by yuri; 10-23-2009 at 09:40 PM.
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Old 10-23-2009, 11:46 PM   #6
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Quote:
Originally Posted by yuri View Post
The best solution is to have a 6" insulated pipe installed to bring in combustion air for the fire. You would need a 6" hole drilled in your outside wall and the pipe installed near the furnace and dropped down near the floor with a gooseneck trap/like a trap under a sink installed in the pipe. Otherwise you will have a very cold room with the window open and waste a lot of heat and have security issues. Try phone several local furnace or sheet metal shops and ask for what I told you exactly. If they don't know what I said try some others. This is very standard and common practice.
Welcome to Canada.
Your wood furnace definitely needs an air source.
A permanent ducted combustion air would be the best.
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Old 10-24-2009, 06:07 AM   #7
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wood furnace advice


hi

ok so the furnace is about 2 feet from my outside wall, so i want to get the straight so i understand, i need to drill a 6 inch hole through the wall, bring this pipe through with some kind of vent guard on the outside, drop the pipe down the wall with a trap shaped at the bottom like one under the sink, ( why a bend like that )

thanks for all the advice
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Old 10-24-2009, 07:37 AM   #8
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The trap/bend slows down the air flow thru the pipe so the wind outside does not blow thru a straight pipe and freeze the furnace room. Air will only flow thru the pipe when there is a negative pressure in the house/fire is on and consuming air. On the outside you use a hood like a dryer vent type except that it should be metal. You can use insulated flex pipe as long as there are NO kinks in it.
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Old 10-24-2009, 09:05 AM   #9
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many thanks for that, its nice to understand it all, i will look into getting some pipework, and fittings

thanks again
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Old 10-24-2009, 09:10 AM   #10
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If you want to get the most energy efficiency and are willing to spend some $$ get a motorized damper installed in that pipe:http://www.hoyme.com/
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Old 10-24-2009, 09:12 AM   #11
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wood furnace advice


sorry forgot to ask, after the pipe comes down the inside wall to a bend near the floor, whats the best distance to have , does tis need to be really close to the main furance door ?

thanks
paul
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Old 10-24-2009, 09:17 AM   #12
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Within a foot or two would be good, use a vent hood outside without a damper(not a dryer hood). You may find a natural draft and cold furnace room even with the bend in the pipe. The motorized damper only lets air in when the furnace calls for heat, assuming it has a thermostat. Some people don't mind the draft, I hated it when I had one in my previous house.
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Old 10-24-2009, 09:28 AM   #13
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that sounds a very idea, can these be brought in home diy centers
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Old 10-24-2009, 09:42 AM   #14
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No. Try e-mail them and maybe they sell direct. Otherwise you need to find a heating parts wholesaler like Emco/Wholesale Heating. They need a bit of electrical wiring but a smart guy can follow the directions and hook it up. The thermostat energizes the damper. The damper has a end switch/relay which activates the furnace. All low voltage 24 volt wiring which you can get at HDepot.

Here you go:http://www.hoyme.com/NS.page

Last edited by yuri; 10-24-2009 at 09:44 AM.
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Old 10-24-2009, 09:52 AM   #15
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would this work

http://www.smarthome.com/307107C/6-I...y-ZC106/p.aspx

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