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Old 11-19-2013, 01:47 PM   #1
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Exaust venting for older LP Furnace


I have a lake cabin that I am building. Here are the facts:
  • It is 960 sqare feet with an unfinished walkout basement.
  • The basement will have infloor heat with an electric boiler.
  • For right now I will have a older forced air LP Gas furnace.
  • It is not high effiency.
  • It has a 3" fan powered exaust on it
  • It is located in the middle of the basement.
  • I want to vent it horizontaly
I know I will have to use the double walled metal pipe, but Is there any trick to this other than running up into the floor joice webbing and then routing it outside with a thimble collar? What kind of termination do I need to put outside?

I would like to run it out the side of the house so it would be about a 20 foot run on a straight shot. Should the pipe be level or have a slant up?

Thanks for any help that can be given.

Peter
PS pardon any spelling errors. I have not installed the spell checker yet.

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Old 11-19-2013, 06:55 PM   #2
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Exaust venting for older LP Furnace


Any Ideas?

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Old 11-19-2013, 07:02 PM   #3
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Exaust venting for older LP Furnace


you cannot vent them horz out any wall. there is a expensive Tjernlund add on power vent kit but it has to be installed by a Pro and can cause problems with the furnace if not setup properly. they are UL and gas code approved for vertical venting only w/o that aftermarket device. I don't sell them but if you can find a Pro that does go 4 it.
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Last edited by yuri; 11-19-2013 at 07:06 PM.
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