Power vent water heater on individual branch ckt?

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al hildenbrand

al hildenbrand

Senior Member
Location
Minnesota
Occupation
Electrical Contractor, Electrical Consultant, Electrical Engineer
I have a plumber friend that has told his customers that powered vent, gas-fired water heaters are to be provided a receptacle on an individual branch circuit. He doesn't recall how he came to that understanding, but he was pretty certain about it.

To my knowledge, it's not in the NEC. What am I missing?
 
The conversation with my friend centered on a dielectric union that failed, and the trouble he had getting a drenched valve & burner to heat the water again.

FPSH/FPCR models, 260 - 261 series:
?Train Blower? manufactured by Fasco
Fasco model 7021-10770
AOS part number 183505
115 VAC, 60Hz, 2.3 Amp, 3275 RPM
Honeywell "smartvalve"
​
This particular water heater says that when the blower and igniter are both running, the current "might" be 7.5 Amps. The troubleshooting manual says the circuit "should" be an individual branch circuit.

"Might" + "should" just doesn't seem like "shall".

Do any of you know of local ordinance that might require the individual branch circuit?
 
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