For quite a few people, there’s nothing like a hot shower to start the day. While that may just be a great 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 above the recommended degree can throw away electricity and cost you money. It also can cause a safety challenge for members of your household. But, if you set your water heater temperature too low, it can permit growth of potentially harmful bacteria and not produce enough hot water for your dwelling.

So, what number is the right one for your water heater? In this article, we’ll establish the most cost-effective temperature to use, when there could be justification 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 brands advise setting the water temperature at 140 degrees, a more economical temperature for a water heater is 120 degrees Fahrenheit. Experts say 120 degrees strikes 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 roughly 22 percent on energy costs. Energy waste is a particular challenge for water heaters because traditional tank models continuously heat a tank of water in case it is required. If you have the water heater temperature set too high, your water heater is constantly heating a tank filled to the brim with super-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 requirements of most residents, but not so hot that it risks burning skin on contact. This makes it a safer alternative, especially in homes with younger children or elderly individuals. Cooler temperatures also decrease mineral deposits in your water heater, which could cause it to break down or need replacing.

Can I Raise My Water Temperature Higher Than 120 Degrees?

While many industry experts say 120 degrees is the ideal water heater temperature if you’re trying to save money, is it acceptable to set it higher? In addition to 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: Higher water temperatures can be helpful in eliminating harmful bacteria that can cause or aggravate certain health conditions. This also may be helpful if you know your home has a problem with bacteria, or if any members of the household 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 sufficient hot water to go around.
  • Old dishwasher: If your dishwasher is an older model 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 correctly.

What Temperature Is Too Hot for my Hot Water Heater?

While some people like their water exceptionally hot or prefer to blend hot and cold water to create their perfect water temperature, there is such a thing as water that is too hot. Experts say any temperature higher than 140 degrees is too hot for a water heater in a home. At 150 degrees, which is considered way too hot, it takes a few seconds for the water to cause third-degree burns. This is why a water heater temperature of 150 degrees is considered very dangerous in households with children or the elderly.

Call Bell Mechanical Services for Your Water Heater Service Needs in McKinney and Frisco

Water heaters can seem a little mysterious, but the qualified technicians at Bell Mechanical Services know these appliances extremely well. They’ve repaired many brands and styles of water heaters over the years, so they have the experience to take care of your water heater repair in McKinney and Frisco.

We also offer water heater replacement, so give us a call at 888-863-0560 if you believe you need water heater installation in McKinney and Frisco. We are happy to take a look at your system and produce a complimentary estimate!