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-   -   Adding fresh air intake to existing Furnace... (http://www.houserepairtalk.com/f8/adding-fresh-air-intake-existing-furnace-1817/)

harleysilo 01-25-2007 06:38 AM

Adding fresh air intake to existing Furnace...
 
the matter....:confused:

mudmixer 01-25-2007 06:49 AM

Are you talking about a furnace or do you also have a gas water heater?

What you do has nothing to do with a return duct. - That is a part of your air handling system. Fresh combustion air supplies are independant of the air handling system.

It is common to duct it directly to a furnace. An alternate is to duct it into a furnaca/utility room that can be isolated from the rest of the home.

harleysilo 01-25-2007 11:27 AM

air to condition in from outside...

glennjanie 01-25-2007 02:52 PM

Hey Harley:
The incoming air could come from the attic or through the attic to a down turn in a soffit, to the return air duct and could be a 3" PVC pipe. Just make sure it has some sort of screen on it to keep sparrows, rodents and insects out.
Glenn


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