Not enough hot water

Old 11-27-22, 06:38 AM
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Not enough hot water

Moved into a used home we just bought and it has a simple Jacuzzi tub. The house is all electric and one I tried to fill the tub with hot water it did not even come to the first jet nozzle in the tub before I ran out of hot water. I let the hot water recycle but even then the water was not very hot.

I pulled the insulation up on the side of the hot water eater And it appeared the thermostat is set at 125 which is the maximum setting. In the past I have run my gas hot water heaters much hotter.
Without peeling the insulation off the tank I cannot see what size tank this is but it is fairly large.
Might be a stupid question, but can the thermostat in the hot water heater simply be replaced with one of higher value? I would like to use the tub but I would also like to have hotter water in the showers.

Old 11-27-22, 12:18 PM
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Most electric water heaters have 2 elements, top and bottom, one could be out, simple check with multi meter!
Old 11-27-22, 03:21 PM
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The gallonage is in the model number.
Most electric water heaters have dual thermostat that go up to 150f.
CasualJoe voted this post useful.
Old 11-27-22, 03:32 PM
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Welcome to the downside of large tubs - you need huge water heaters to use them.

That said, if your heater is running out of hot water prematurely, this is a sign the lower element may not be working,
Old 11-28-22, 02:33 PM
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The plumber plumber found the lower element set at 90 degrees and moved it up, said that should fix the problem all but volume for the tub.
Old 11-28-22, 04:19 PM
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If that doesn't fix your problem look at the thermostat pictures PJmaz posted in post #3. Those thermostats from Therm-O-Disc have settings up to 150 degrees. I'm sure you can find them at either Home Depot or Lowes.

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