For many people, there's nothing like a hot shower in the morning. While that may just 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 too hot can throw away power and cost you money. It also can pose a safety challenge for members of your household. But, if you set your water heater temperature too low, it can enable growth of potentially harmful bacteria and not provide adequate hot water for your household.

So, what temp should you set your water heater? Here, we’ll establish the most effective temperature to use, when there could be cause to set it a little higher and how hot is too hot for your home's water heater.

What Is the Most Efficient Temperature for a Water Heater?

Although many manufacturers advise setting the water temperature at 140 degrees, a more economical temperature for a water heater is 120 degrees Fahrenheit. Specialists say 120 degrees strikes the right balance between safety and energy usage.

The U.S. Department of Energy states that setting a home water heater temperature at 120 degrees could save approximately 22 percent on energy bills. Energy waste is a particular challenge for water heaters because traditional tank models always heat a tank of water in case it is needed. If you have the water heater temperature set too high, your water heater is consistently heating a tank brimming with very hot water.

What Temperature Should I Set My Hot Water To?

In most cases, the suggested efficient temperature of 120 degrees is an effective yet cost-saving setting for your water heater. At 120 degrees, the water is heated enough to meet the needs of most residents, but not so hot that it risks burning skin on contact. This makes it a safer choice, especially in homes with younger children or elderly people. Reduced temperatures also decrease mineral deposits in your water heater, which could cause it to break down or need replacement.

Can I Set My Water Temperature Higher Than 120 Degrees?

While many industry experts say 120 degrees is the preferred water heater temperature if you’re wanting to save money, is it acceptable to set it higher? In addition to personal preference, there are a few scenarios where it could make sense to set your water temperature a little higher, between 130-140 degrees:

  • Bacteria: Hotter water temperatures can be helpful in eliminating harmful bacteria that can cause or exacerbate certain health conditions. This also may be practical if you know your home has trouble with bacteria, or if any residents of the house have a compromised immune system.
  • High usage: If your home tends to use a lot of hot water at the same time—showering while also running the dishwasher and washing machine, for example—a greater water heater temperature may be necessary to make sure there’s adequate hot water for everyone.
  • Old dishwasher: If your dishwasher is old and doesn’t heat water as part of its process, 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?

While some people like their water extremely 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. Energy officials say any temperature above 140 degrees is too hot for a water heater in a residential dwelling. At 150 degrees, which is considered way too hot, it takes just seconds for the water to cause third-degree burns. This is why a water heater temperature of 150 degrees is especially 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 knowledgeable pros at Dave's Diversified Services know these appliances like the back of their hands. They’ve serviced many brands and types of water heaters throughout the years, so they have the experience to take care of your water heater repair in Front Royal.

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