Need to be educated!!!!

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1

Originally Posted By: dmacy
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http://www.nachi.org/bbsystem/usrimages/5/57205_Strongsville_023_Small.jpg ]


Thanks


Dave

2

Originally Posted By: phinsperger
This post was automatically imported from our archived forum.


Dave,


Some furnaces have the intake as an option to take combustion air from inside the dwelling or to run a pipe to the out side for a complete closed combustion system. A closed combustion system is a bit more efficient and in my opinion should be done whenever possible. Where the option has been documented by the manufacture it will also indicate what conditions must be met inorder to install it that way. Providing conditions are met, it is up to the installer to determine which way to install it.

High-efficiency furnaces do generate CO

3

Originally Posted By: dspencer
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A 90 plus burns it gas and blows it threw the heat exchanger which in return continues threw what looks like a radiator; which uses the return air longer and cooling it which in result return the heat to the home and the exhaust is now cool enough to exhaust in PVC out the side of the home. A air intake is not required but make the furnace more effiencent when it is used.


Hope this in short explains ![icon_biggrin.gif](upload://iKNGSw3qcRIEmXySa8gItY6Gczg.gif)

4

Originally Posted By: bking
This post was automatically imported from our archived forum.


You still have to inspect for proper combustion air.


If the unit is in a large unfinished basement, I will still report that any future wall additions could limit the combustion air available.


Many people here buy new homes with unfinished basements and then do the work later themselves.