Q: Are water heater thermostats adjustable?
A: Most water heater thermostats provided by Camco are adjustable. They are factory set at 120°F. On a two-element water heater, it is not recommended that the upper thermostat be adjusted. If higher water temperature is desired, adjust the lower to a higher setting. Both may be lowered if a cooler temperature is desired.

Q: On thermostats without a degree dial, what are the temperatures of the dial settings?
A: The temperature range is:
the Dot = 110º F
Hot = 120º F
A = 130º F
B = 140º F
C = 150º F
Very Hot = 160º F

Q: At what temperature should I set the thermostats?
A: Water heater thermostats are factory pre-set at 120º. However, most are adjustable. It is recommended that the upper T-stat remain set at 120º. If a higher temperature is desired, adjust only the lower thermostat. Caution: High temperature can cause injury.

Q: I noticed that there are two styles of water heater thermostats. Are they interchangeable?
A: Yes, like models of the two thermostat manufacturers are inter- changeable. Use caution in selecting the correct model for their position on the heater (upper, lower, single element T-stat).

Q: How do I know which thermostat to buy?
A: A two-element water heater has two thermostats: an upper and a lower. Each must be replaced with a thermostat with the same function: upper for upper, lower for lower. They cannot be interchanged, as they perform specific functions. A single-element water heater has only one thermostat and that is called a “single element thermostat.” The upper and lower thermostats for a two-element heater cannot be used on a single-element water heater and vice versa.