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water heaters in series

ChrisJ
ChrisJ Member Posts: 16,745
in Domestic Hot Water
I am considering installing a small 20 gallon electric water heater in series with a 40 gallon gas water heater and am curious if it is considered safe and if it would be to code.  I cannot see any reason that it would be unsafe but may I'm missing something.



Reason is to have instant hot water in a location far from the gas water heater, yet I would rather not run the electric one more than necessary.  I'm going to have this 20 gallon electric water heater on hand for nothing so I'm trying to find a creative use for it.  I am currently using it as a temporary source of hot water while doing other work.

Single pipe 392sqft system with an EG-40 rated for 325sqft and it's silent and balanced at all times.

Comments

  • Mark Eatherton
    Mark Eatherton Member Posts: 5,872
    Should be no problem...

    So long as the installation meets code (floor drain in the vicinity, T&P relief valve etc) it should be fine.



    ME
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