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-   -   Burner Air Supply - Negitive Pressure Home (http://www.diychatroom.com/f17/burner-air-supply-negitive-pressure-home-14631/)

taglaser62 12-20-2007 08:31 PM

Burner Air Supply - Negitive Pressure Home
 
I have a Rheem 90 high efficiency furnace. I have been told that it creates a negitive pressure in the home when it sucks air out of the home for combustion and then blows it outside via the exhaust. I understand this and can believe what I'm told. Here is the question: should I run an air supply tube from outside to my furnace so that home air pressure is neutral? pros & cons please?

Buckeyetech 12-20-2007 08:47 PM

Most 90 percenters have two pvc pipes going into the furnace. One is the air intake and the other is the flue gas exhaust.

taglaser62 12-20-2007 08:50 PM

yes i see it there. should I pipe it to outside? what is benefit?

bigMikeB 12-22-2007 08:06 PM

Not using inside air for combustion is the benefit. Outside air for combustion makes less carbon monoxide than using inside air. Pipe it outside.


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