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Old 2018-05-05, 11:22 PM
TKG26 TKG26 is offline
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Join Date: Sep 2008
Location: HMB
Posts: 1,860

Have HVAC tech review install manuals to see what options you have.

I suspect u have a Lennox. They have a bunch of options with various allowable lengths.. The middle pipe is your air intake and it must stay at least 12" away from the water heater exhaust (the vent closest to us in the picture)
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