Most hot water heaters have a a b c knob.
Water heater temperature control a b c.
Other temperature settings hot and very hot each stands for 120 degrees and 160 degrees.
Here is what temperature each letter stands for.
Water heater dial a b c.
For the a knob the temperature is 130 degrees.
On my water heater i get 120 f water with a setting of b when the temperature at the tap is 120 f the temperature in the tank will be about 130 f which is enough to prevent bacterial growth.
On your hot water heater there will be a knob on the gas valve or a thermostat if electric behind an electric water heater panel.
The recommended temperature setting is between 115 degrees and 120 degrees.
The last c knob setting stands for 150 degrees.
Use the labels as a starting point but measure the actual temperature at the closest hot water faucet if you want to be most precise.
Most hot water heaters have a a b c knob.
Check you water heater temperature setting.
If your water heater is now set to 140 f note that you can save 3 to 5 of the energy consumption for each 10 f you lower the temperature.
For the b knob the temperature which has been determined is 140 degrees.
The recommended temperature setting is between 115 degrees and 120 degrees.
After programming is com plete the time dial functions only as an on off switch.
120 degrees is sometimes labeled hot or with a little triangle icon.
On your hot water heater there will be a knob on the gas valve or a thermostat if electric behind an electric water heater panel.