For quite a few people, there’s nothing better than a hot shower to start the day. While that may be a fantastic way to wake up and start the day, experts say you should be careful not to set your water too hot.

Setting your water heater to a temperature that’s too hot can waste energy and cost you money. It also can pose a safety concern for members of your home. 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 household.

So, what temperature is ideal for 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 own water heater.

What Is the Most Efficient Temperature for a Water Heater?

Although many companies 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 usage.

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

What's the Right Temperature for My Hot Water?

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 warm enough to meet the desires of most members of the household, but not so hot that it could cause burning skin on contact. This makes it a safer alternative, especially in homes with younger children or elderly men and women. Reduced temperatures also minimize mineral deposits in your water heater, which could cause it to break down or need replacing.

Can I Raise My Water Temperature Hotter Than 120 Degrees?

While many industry experts say 120 degrees is the preferred water heater temperature if you’re looking to save money, is it acceptable to set it higher? In addition to personal preference, there are a few 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 recommended if you know your home has a problem with bacteria, or if any residents of the house are sick.
  • High usage: If your home tends 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 sufficient hot water to go around.
  • Old dishwasher: If your dishwasher is getting up there in years and doesn’t heat water itself, it may be necessary to set your water heater to a higher temperature for it to work effectively.

What Temperature Is Too High?

Even though some people like their water extremely hot or prefer to blend hot and cold water to obtain their ideal water temperature, there is such a thing as water that is too hot. Experts say any temperature hotter than 140 degrees is too hot for a water heater in a home. At 150 degrees, which is regarded as way too hot, it takes only seconds for the water to lead to third-degree burns. This is why a water heater temperature of 150 degrees is considered very unsafe in residences with children or the elderly.

Call Indoor Comfort Systems HVAC for Your Water Heater Service Needs in Croydon

Water heaters can be a little mysterious, but the skilled pros at Indoor Comfort Systems HVAC know these appliances like the back of their hands. They’ve repaired many brands and designs of water heaters through the years, so they have the experience to tackle your water heater repair in Croydon.

We also offer water heater replacement, so reach out to us at 215-741-5505 if you think you need water heater installation in Croydon. We are happy to check out your system and give a complimentary estimate!