For quite a few people, there’s nothing better than a hot shower in the morning. While that may be a perfect way to wake up and start the day, experts say it’s possible to set your water too hot.

Setting your water heater to a temperature that’s scorching can throw away energy and cost you money. It also can create a safety concern for members of your residence. But, if you set your water heater temperature too low, it can permit growth of potentially harmful bacteria and not produce sufficient hot water for your property.

So, what number should you set your water heater? In this article, we’ll identify the most effective temperature to use, when there could be justification to set it a little higher and how hot is too hot for your personal water heater.

What Temperature for my Water Heater Is the Most Energy Efficient?

Although many manufacturers encourage setting the water temperature at 140 degrees, a more efficient temperature for a water heater is 120 degrees Fahrenheit. Industry experts say 120 degrees hits the right balance between safety and energy usage.

The U.S. Department of Energy estimates that setting a home water heater temperature at 120 degrees could save up to 22 percent on energy costs. Energy waste is especially a challenge for water heaters because traditional tank models constantly heat a tank of water in case it is required. If you have the water heater temperature set too high, your water heater is consistently heating a tank filled to the brim with super-hot water.

So What Temperature Should My Hot Water Be?

In most cases, the suggested efficient temperature of 120 degrees is the right setting for your water heater. At 120 degrees, the water is heated enough to meet the needs of most members of the household, but not so hot there's a danger of burning skin on contact. This makes it a safer option, especially in homes with young children or elderly men and women. Lower temperatures also minimize mineral deposits in your water heater, which could cause it to break down or need replacement.

Can I Raise My Water Temperature Higher Than 120 Degrees?

While many industry experts say 120 degrees is the best water heater temperature if you’re wanting to save money, is it OK to set it higher? Apart from personal preference, there are a couple of different situations where it could be wise to set your water temperature a little higher, between 130-140 degrees:

  • Bacteria: Increased water temperatures can be a good way to eliminate harmful bacteria that can cause or exacerbate certain health conditions. This also may be practical if you know your home has an issue with bacteria, or if any people who live in your home are immunocompromised.
  • High usage: If your home is inclined to use a lot of hot water simultaneously—showering while also running the dishwasher and washing machine, for example—a hotter water heater temperature may be necessary to make sure there’s enough hot water for everyone.
  • Old dishwasher: If your dishwasher is old and doesn’t heat water on its own, it may be necessary to set your water heater to a higher temperature for it to work properly.

How Hot Is Too Hot for a Water Heater?

Even though some people like their water quite hot or like to blend hot and cold water to create their desired water temperature, there is such a thing as water that is too hot. Experts say any temperature above 140 degrees is too hot for a water heater in a residence. At 150 degrees, which is definitely way too hot, it takes a few seconds for the water to create third-degree burns. This is why a water heater temperature of 150 degrees is particularly hazardous in residences with children or the elderly.

Call Dave's Diversified Services for Your Water Heater Service Needs in Front Royal

Water heaters can sometimes feel a little mysterious, but the skilled pros at Dave's Diversified Services know these appliances like the back of their hands. They’ve serviced many brands and models of water heaters through the years, so they have the experience to handle your water heater repair in Front Royal.

We also offer water heater replacement, so reach out to us at 540-636-3396 if you think you need water heater installation in Front Royal. We are happy to check out your system and produce a free estimate!