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16 May 2001 at 1:31 pm
#290821
fourth year
Participant
You do not have a problem when the burner is operating, so unless you also installed a damper in the flue, which would be illegal under a lot of codes, a blower would not help your problem. You have an illegal flue, since it is supposed to rise to a point above the roof line, but in any case not terminate through a side wall. Do you have a Belmont cap on the flue and a draft diverter on the water heater?