What temp should hot water tank be set at?
What temp should hot water tank be set at? 120 degrees So, what is the best temperature range for your water heater? The EPA recommends 120 degrees because it's hot enough to keep diseases at bay, it's not hot enough to cause scalding, it will supply enough hot water for most small families and is relatively energy-efficient. What temperature is C setting on water heater? C = 150° Very Hot = 160° How can I change the temperature of my Rinnai Water Heater? Even if there are many models of Rinnai tankless water heaters, adjusting the temperature is quite similar...