For many people, nothing feels quite as good as a hot shower to start the day. Even though 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 too hot can throw away electricity and cost you money. It also can cause a safety concern for members of your family. But, if you set your water heater temperature too low, it can allow growth of potentially harmful bacteria and not produce sufficient hot water for your household.

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

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

Although many manufacturers advise setting the water temperature at 140 degrees, a more economical temperature for a water heater is 120 degrees Fahrenheit. Industry experts 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 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 warm enough to meet the requirements of most members of the household, but not so hot that it risks burning skin on contact. This makes it a safer option, especially in homes with small children or elderly men and women. Reduced temperatures also cut down on mineral deposits in your water heater, which could cause it to break down or need to be replaced with a new one.

Should You Ever Set Your Water Temperature Higher Than 120 Degrees?

While many energy experts say 120 degrees is the best water heater temperature if you’re looking to save money, is it OK to set it higher? In addition to personal preference, there are some scenarios where it could be a good idea to set your water temperature a little higher, between 130-140 degrees:

  • Bacteria: Higher water temperatures can be beneficial in eliminating harmful bacteria that can cause or worsen certain health conditions. This also may be recommended if you know your home has an issue with bacteria, or if any members of the household have a compromised immune system.
  • High usage: If your home has a tendency to use a significant amount of hot water simultaneously—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 to go around.
  • Old dishwasher: If your dishwasher is an older model and doesn’t heat water on its own, you may have 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 quite hot or would rather blend hot and cold water to obtain 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 regarded as 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 dangerous in residences with children or the elderly.

Call Jack's Heating, Cooling, Stoves & Fireplaces for Your Water Heater Service Needs in Alliance

Water heaters can be a little mysterious, but the qualified technicians at Jack's Heating, Cooling, Stoves & Fireplaces know these appliances inside and out. They’ve serviced many brands and models of water heaters over the years, so they have the experience to tackle your water heater repair in Alliance.

We also provide water heater replacement, so call us at 308-762-1613 if you think you need water heater installation in Alliance. We are happy to check out your system and provide a complimentary estimate!