Crane Water Heater Age?

[Michael Chambers]

Hi all! I encountered a Crane brand gas water heater yesterday, but haven't been able to come up with an age for it yet. Does anyone have a handle on what the age code in the serial number is for this brand? This was a model C5-40-NRT7, and the serial number was E77804592. It was an older unit, but 1977 seems to be quite a reach, although the house was built in 1978. I appreciate any help I can get on this!

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[Jerry Peck]

the serial number was E77804592. It was an older unit, but 1977 seems to be quite a reach, although the house was built in 1978.

E77... probably manufactured in May 1977.

[Michael Chambers]

E77... probably manufactured in May 1977.

Thanks Jerry! That was my guess as well, but I don't want to report it as such unless I can confirm it to be true.