Water Heaters - Water Temperature Adjustment
Safety, energy conservation, and hot water capacity are factors to be considered when selecting the water temperature setting of the water heater. Water temperatures above 125°F can cause severe burns or scalding. Be sure to read and follow the warnings outlined on the label located on the water heater near the top of the tank.
The chart below may be used as a guide in determining the proper water temperature for your home:
Time/Temperature Relationship in Scalds
| Temperature | Time to Produce a Serious Burn |
| 120°F (49°C) | More than 5 minutes |
| 125°F (52°C) | 1-1/2 to 2 minutes |
| 130°F (54°C) | About 30 seconds |
| 135°F (57°C) | About 10 seconds |
| 140°F (60°C) | Less than 5 seconds |
| 145°F (63°C) | Less than 3 seconds |
| 150°F (66°C) | About 1-1/2 seconds |
| 155°F (68°C) | About 1 second |
Table courtesy of Shriners Burn Institute
There is a Hot Water SCALD Potential if the water temperature thermostat is set too high. Households with small children, disabled or elderly persons may require a 120°F (49°C) or lower thermostat setting to prevent contact with “HOT” water. Please thoroughly review the details of this critical information by reading the safety information in your Owner's Manual. Download a copy of the Owner's Manual.
The thermostat has been set at the factory to 120°F (49°C) to reduce the risk of scald injury. This is the recommended starting temperature setting, but it can be adjusted to any temperature between 90°F and 150°F (32°C and 66°C) on electric thermostat-controlled models or between 100°F and 140°F (38°C and 60°C) on electronic-controlled models.