What is the correct temperature setting for a hot water heater to prevent scalding?

Setting the hot water heater to 120 degrees Fahrenheit is recognized as a safe and effective standard for preventing scalding while providing adequately hot water for daily needs. At this temperature, it minimizes the risk of scalding, especially for vulnerable populations such as children and the elderly, who are more susceptible to burns. Water at 120 degrees Fahrenheit can still effectively deliver hot water for tasks like dishwashing and showering but significantly reduces the chance of burns that can occur at higher temperatures.

Temperatures above this threshold, such as 140 degrees Fahrenheit, can pose a serious risk of burns in just a few seconds, which is why many safety recommendations advocate for the 120-degree setting. While lower settings, like 100 or 110 degrees Fahrenheit, could be safer, they may not provide sufficient heat for effective cleaning and sanitation purposes, especially in kitchens or healthcare settings.