Furnace Venting

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Furnace Venting

Postby m73214 » Thu Jan 26, 2012 1:58 pm

Is there any problem with placing the intake/exhaust PVC pipes vertically from the basement all the way up to the roof? Would not insulating these pipes in the attic cause any problems?
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- Furnace Venting

Postby Freon » Thu Jan 26, 2012 5:08 pm

Please read the installation instructions. They are always very explicit about venting. And every furnace is different. Not knowing your furnace make/model we can not give you useful advice.
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- Furnace Venting

Postby m73214 » Fri Jan 27, 2012 8:06 am

Freon -
> Please read the installation instructions. They are always very explicit
> about venting. And every furnace is different. Not knowing your furnace
> make/model we can not give you useful advice.

My furnace is a Trane XV 95. Hope this helps.
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- Furnace Venting

Postby heatseeker » Fri Jan 27, 2012 2:17 pm

No you cannot, are you a diyer if so a 95% furnace is nothing to play with.
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- Furnace Venting

Postby m73214 » Fri Jan 27, 2012 2:50 pm

heatseeker -
> No you cannot, are you a diyer if so a 95% furnace is nothing to play
> with.

I'm not a diyer....My HVAC guy installed it this way in a brand new house.
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- Furnace Venting

Postby Freon » Fri Jan 27, 2012 4:57 pm

Did the HVAC person take the installation instructions? Are you having difficulties with the furnace? These are really questions for the installer. However there are restrictions as to total equivalent pipe length (inlet and exhaust) based on pipe diameter. Equivalent length is not only the length of straight pieces but also the effect of elbows on air flow. If there is too much friction you may not get the necessary air flow for combustion. The equivalent length is based on the size (BTU/hr) of your furnace, which we do not know.

Go here to d/l the installation manual and you can see the size pipe and equivalent lengths allowed for various - **/doc_details/2-xv95-trane-installation-manual.html

If this does not get into the message, search for Trane XV 95 pdf and look for a site that belongs to sbeelectricandhvac . The url will be sbeelectricandhvac 'dot' com/doc_details/2-xv95-trane-installation-manual.html This site has the manual for d/l.
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