01/16/2024
Why do we check water temperature?
The ideal temperature setting for a water heater is between 120 and 130 degrees Fahrenheit. Below 120 degrees, bacteria can grow in the stagnant water sitting in the tank. Above 140 degrees, the water is hot enough that you can be at risk for scalding in as little as two seconds!
The Government of Canada recommends setting the water heater to 140 degrees and installing a mixing valve to reduce the water temperature down to 120 degrees, to help prevent scalding.
Some water heater temperature controls come with settings that read “A-B-C” as opposed to numbers. Generally:
A means 120F/49C degrees
B means 130F/54C degrees
C means 140F/60C degrees.