Your hot water temperature is very important and having a water heater that is too hot can cause problems. If you want to learn more, you should click here.
Setting your water heater's temperature for best results
What Temperature Should a Water Heater Be Set At?
Hot water temperature setting, controls, improvement: how to Safely Increase Hot Water Temperature your Water Heater
How to install two water heaters
Maintaining A Water Heater: Repair And Service Guide – Forbes Home
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How to Adjust Your Water Heater's Temperature
How to Turn Up Hot Water Heater
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How to Adjust a Hot Water Heater
Drinking hot water: Benefits and risks