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Question About Coleman Furnace 8638
need to change a coleman lp furnace to natural gas...

need to change a coleman lp furnace to natural gas. Model 8638. Do I just change orifice and spring?

Asked by rick on 11/18/2014 1  Answer

ManualsOnline posted an answer 10 years, 1 month ago

The ManualsOnline team has found the manual for this product! We hope it helps solve your problem. Get the Manual Here

Bob Folmar posted an answer 10 years, 1 month ago

0 change the orifice to a larger one.
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