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The unit is absolutely NOT designed to run with both elements on. This will void any warranty or safety standards of the unit. For the plumber, or anyone else, to suggest this is ok is EXTREMELY irresponsible. Besides, while running both elements will heat the water up faster, it will not likely increase volume by much. To increase the volume, you need ...


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There should be an expansion tank plumbed somewhere on the hot water line to handle the pressure fluctuations. Without this there will be potential pressure problems regardless of how the heating elements are run. With one (appropriately sized and plumbed) there will be no problems. Hot water expansion pressure is created in a system with a backflow check ...


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Groaning, rumbling, or other low-pitched noises from a hot water heater are typical symptoms of excessive sediment buildup in the heater; normally, flushing it via the bottom drain valve is recommended to clean out the sediment buildup. If not cleaned out, eventually the heater's lower element will burn out due to being buried in insulating sediment ...


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No, the 100 Amp breaker feeding the sub-panel is not the reason for the water heater not working. Has the heater ever made hot water, has this started recently? The 100 Amp feed is wrong for other reasons Others will likely talk about 'code violations,'but without knowing when and where your system was installed, those are just guesses at this time. If ...


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Leviton ODS15-IDG Rated 1800 watts at 120 volts Single Gang Space $45 at Amazon


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Use a 24 Volt Occupancy Sensor in conjunction with a thermostat.


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My thermostat stopped working, my electric water heater got too hot, and water boiled out of the T&P valve. I just had to replace the thermostat. Have it looked at by a plumber. So yes, this can be an intermittent thing. And yes, there could be a slow leak somewhere else. What type of WH is it? Gas, electric? Please add this answer to the bottom of ...


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The hot water line is a normal-enough place to install one for hot water expansion (especially if there is a check valve on the line entering the hot water tank, for preventing thermo-siphoning.) It's not be the best choice from a hot water efficiency point of view, though (since the water in the expansion tank will tend to cool, and that means a slug of ...


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The only 'problem' is that it fills with hot water. The water sits there and will get cold if not being used. When the hot water is turned on again, this cooler water will mix with your hot water. Your hot water will change in temperature a bit until the water in the tank, and the metal of the tank get hot. Nothing will happen that will ruin your ...



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