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For a water heater, 120 °F (49 °C) is the factory setting, and is the low end of the heating scale. Most are set higher, at 130°F to 150°F to allow for the cooling of the water in the pipes. The hottest setting is about 160°F, which may be too hot for human use (showers) but suitable for washers and dishwashers.

In water heaters with two, an upper and a lower thermostat (which perform different functions), the upper thermostat should be left at 120°F.

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Q: Is 120 degree Fahrenheit ok for heater thermostat?
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Related questions

120 Fahrenheit in Celsius?

120 degree Fahrenheit = 48.9 degrees Celsius. Below is a conversion site.


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110-120 degrees Fahrenheit.


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120 degrees Fahrenheit is equal to 48.9 degrees Celsius. You can convert Fahrenheit to Celsius by subtracting 32 from the Fahrenheit temperature, then multiplying by 5/9.


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Start by multiplying 120 with 9 and divide by 5. Then add 32 to the answer. In this case the answer is 248 degree fahrenheit.


How much is 120 degrees Fahrenheit in Celsius?

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