PVC furnace exhaust freezes

TP · 2005-01-22T00:18:43+00:00

I have a new gas forced air furnace, Amana. The PVC exhaust runs about horizontally 30 feet to the outside wall. PVC makes a slight pitch back toward the furnace for draining. Everything has worked fine until the temperature outside dropped into the single digits. (Upstate NY) The furnace will not come on until I go out and clean out the ice formation on the end of the pipe. Now there is not a lot of ice, only a ridge around the edge. What do you suggest I do to stop this? Should I insulate the pipe so it doesn?t freeze? Or should I change the pitch so more moisture drains back instead of out? The shape of the pipes looks like rams horns, 2 pipes up about 3 feet 12 inches apart. Then to 180 degree fittings on top dump down opposite each other. Should I change the outside configuration?ThanksTP

Jan 22, 2005 20 Replies

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Donald Corder 8 years ago

replying to TP, Donald Corder wrote: Have as little pvc outside as possible. The more exposed to the elements, the better chance on problems.

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PVC furnace exhaust freezes

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