For quite a few people, there's nothing like a hot shower in the morning. While that might be a fantastic way to wake up and start the day, experts say you can set your water too hot.

Setting your water heater to a temperature that’s scorching can squander power and cost you money. It also can cause a safety issue for members of your residence. 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 property.

So, what number is ideal for your water heater? In this article, we’ll identify 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 Is the Most Efficient Temperature for a Water Heater?

Although many brands suggest setting the water temperature at 140 degrees, a more economical temperature for a water heater is 120 degrees Fahrenheit. Industry experts say 120 degrees provides the right balance between safety and energy use.

The U.S. Department of Energy states that setting a home water heater temperature at 120 degrees could save roughly 22 percent on energy bills. Energy waste is a frequent challenge for water heaters because traditional tank models continuously heat a tank of water in case it is demanded. If you have the water heater temperature set too high, your water heater is consistently heating a tank full of super-hot water.

What's the Right Temperature for My Hot Water?

In many instances, 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 desires of most members of the household, but not so hot there's a danger of burning skin on contact. This makes it a safer choice, especially in homes with small children or elderly individuals. Cooler temperatures also cut down on mineral deposits in your water heater, which could cause it to break down or need replacing.

Can I Set My Water Temperature Hotter Than 120 Degrees?

While many plumbing and heating experts say 120 degrees is the preferred water heater temperature if you’re wanting to save money, is it OK to set it higher? In addition to personal preference, there are a few situations where it could be a good idea 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 sick.
  • High usage: If your home has a tendency to use a significant amount 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 all the household's needs.
  • Old dishwasher: If your dishwasher is getting up there in years 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 correctly.

What Temperature Is Too High?

While some people like their water exceptionally hot or would rather blend hot and cold water to achieve their desired water temperature, there is such a thing as water that is too hot. Energy officials say any temperature higher than 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 especially unsafe in residences with children or the elderly.

Call Everest Heating & Cooling for Your Water Heater Service Needs in Kansas City, MO and Lansing, KS

Water heaters can seem a little mysterious, but the qualified pros at Everest Heating & Cooling know these appliances inside and out. They’ve fixed many brands and types of water heaters throughout the years, so they have the experience to tackle your water heater repair in Kansas City, MO and Lansing, KS .

We also offer water heater replacement, so contact us at 913-845-9463 if you believe you need water heater installation in Kansas City, MO and Lansing, KS . We are happy to check out your system and give a free estimate!