Can I tie the new furnace exhaust to the existing chimney?

Home Maintenance Questions and AnswersCategory: Furnace VentingCan I tie the new furnace exhaust to the existing chimney?
Question by MarkH

I have the existing chimney that the water heater and original furnace shared. Is there any way I can tie the new exhaust to the existing chimney? Stainless adaptor/tubing? It would be about a 3 foot piece, from the furnace exhaust port to the chimney. Or would I have to replace the chimney with one that would withstand the moisture?
I need to move the pvc line away from where it exits. I need to put in a deck, and don’t want the exhaust right next to it. Otherwise I need to know how close the pvc exhaust can be from windows/doors etc.. I want to take the shortest possible root to vent it. Thank you

1 Answers
Dariusz Rudnicki Staff answered 9 months ago

Hi Mark,
Could you please specify what type of an appliance are you attempting to vent with that stainless steel pipe? Its brand and model would help as well, is it a condensing type furnace?. What is the type of your chimney – masonry (does it have a liner / what type), metal (galvanized, stainless steel)? What PVC line are you describing? I can’t tell you much without that information. Thanks

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