Plumbing Forum - Professional & DIY Plumbing Forum > General Plumbing Discussion > Water Heaters and Softeners > Water in top too hot

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Old 04-10-2014, 01:53 PM   #1
britkath
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Default Water in top too hot

What would you do if you had a 1000 gallon water heater that the water is getting too hot in the top of the heater, and tripping the T&P relief valve?


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Old 04-10-2014, 10:57 PM   #2
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Gas or electric?


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Old 04-11-2014, 02:01 PM   #3
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Gas or electric?
Electric water heater
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Old 04-11-2014, 03:20 PM   #4
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I would wonder why this suddenly started to happened and maybe check for a circulating pump that is non-op or a thermostat issue.
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Old 04-11-2014, 03:30 PM   #5
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Are you sure it's tripping because of temperature and not pressure? Is there a thermo expansion tank on the heater?
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Old 04-12-2014, 12:35 AM   #6
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And a properly sized thermal expansion tank, at that. A 1000 gallon heater is not something that can be served by a standard expansion tank. Or, if the expansion tank is of the proper size, has the bladder failed?
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Old 04-12-2014, 12:51 PM   #7
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Good call, guys. I assumed that a 1,000 gallon tank in a commercial setting would have temp and pressure gauges in the proper locations to make thermal expansion and easy issue to rule out of the equation.


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