I live in New Jersey and am replacing a 10 year old gas water heater; the instructions (Kenmore) mention a expansion tank or a vacuum relief valve. We have neither now, do I need one, is it required?
Thanks
KK
Since this is a gas water heater, did you call the gas utility first? They don't look kindly on folks messing with gas piping without permits and inspections. You should also give a call to the local plumbing or mechanical inspector to verify the venting is proper.
This is awkward, but...
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