water heater adjustable thermostat
I'm thinking of replacing thermostat on water heater with an adjustable one. This sucker is way too hot! Replacement looks pretty simple on youtube. Has anyone replaced theirs, have reasons not to...
Forum Discussion
Yep - they set them for 140F because you can mix about 6 gallons of incoming 55F water and still have 12 gallons of 100F water to shower or wash dishes.
If lowered to 120F, then you can only mix in about 3 gallons of cold water, and you will only have 9 total before running out hot water.
Another brand of water heater sets the thermostat even higher, like 160F. THen they MUST use a water mixing valve, so the output is limited to a max 120F, to prevent scalding, and basically the first gallon of hot water is mixed with nearly 1 gallon of cold water, so the 6 gallons last for about 12 output at 120F.
It gives a lot more hot water, and the mixing valve prevents the scalding.
My suggestion is to get a mixing valve. Then you can still have the full output, and not get scalded.
Fred.
If lowered to 120F, then you can only mix in about 3 gallons of cold water, and you will only have 9 total before running out hot water.
Another brand of water heater sets the thermostat even higher, like 160F. THen they MUST use a water mixing valve, so the output is limited to a max 120F, to prevent scalding, and basically the first gallon of hot water is mixed with nearly 1 gallon of cold water, so the 6 gallons last for about 12 output at 120F.
It gives a lot more hot water, and the mixing valve prevents the scalding.
My suggestion is to get a mixing valve. Then you can still have the full output, and not get scalded.
Fred.
