What is the recommended temperature setting for a water heater?

The recommended temperature setting for a water heater is 120 degrees Fahrenheit. This setting is considered optimal for several reasons. Firstly, it provides a comfortable hot water temperature for most household needs, such as bathing, dishwashing, and laundry, without posing a significant risk of scalding. Temperatures above 120 degrees can significantly increase the risk of burns, especially for children and the elderly.

Secondly, setting the water heater at this temperature can help to reduce energy consumption. Water heaters set higher than 120 degrees tend to waste energy due to heat loss from the tank and pipes, leading to higher utility bills.

Additionally, maintaining the temperature at 120 degrees helps to minimize the growth of harmful bacteria like Legionella, which can thrive in water temperatures below this threshold. This balance of safety, efficiency, and health makes 120 degrees Fahrenheit the most recommended setting for residential water heaters.