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Question About A.O. Smith Water Heater GCV 40 300
What is the correct adjustment for the vent under ...

What is the correct adjustment for the vent under the chimney on the top of the unit? The unit is A.O. Smith model # GCV 40 300. There are two notches that the vent apparently should fit into. Should the vent adjustment be placed into these?

Asked by on 10/13/2013 0  Answer

ManualsOnline posted an answer 11 years, 1 month ago

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