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Thread: venting
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03-10-2010, 03:07 PM #1
venting
As an hvac technician I run into this situation quite often. An older furnace (natural draft) was replaced with a newer more efficient furnace. The installing contractor utilized the old transite pipe as the vent for the new furnace. The new furnace doesn't have as much heat leaving the vent and the vapor in the exhaust is allowed to condense inside the vent pipe and runs downhill to the furnace. I know you guys like to see terrible workmanship, so here you go.
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03-10-2010, 08:23 PM #2
Re: venting
More common is the new water heater with the old flue pipe
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