The Best Water Heater Temperature Setting

Posted by on Jan 26, 2014 in Water Heater Repair Syracuse NY

There are diverse views on exactly what is the best temperature level at which to set ones water heater. Water Heater Repair Syracuse NY will be sharing a few of the different views with specific evidence from those sources in order for one to make his or her own choice on the topic.Water Heater Repair Syracuse NY

First of all, the default setting most water heater manufacturers have their tanks set at is 140 degrees. If you have actually never examined this already, that may be the temperature it is set. Likewise, it can be hard to know for sure what the temperature setting is because numerous times the temperature level dial does not have actual degrees written on it, just warm, hot, really hot … something to that effect. Some people feel they are pre-set at a higher temperature so it feels excellent to have a great deal of hot water – kind of like trying to produce great brand awareness in consumers.

In regards to energy cost savings, by turning a water heater down from 140 to 120 degrees, it will conserve in between 6 to 10 percent of energy usage. That equates to in between $6 to $20 a year most of the time.

Let’s begin off with the most likely the most popular source, the U.S. Department of Energy. They suggest a setting of 120 degrees. The link with their website above provides lots of excellent information on the best ways to minimize ones hot water consumption and expenses. It is certainly worth a read.

Now for the health threats of too low of a temperature setting. It can be concluded that Legionella bacteria has the ideal development range between 68 to 122 degrees. Treehugger states that “25 percent of all water heaters have varying levels of Legionella bacteria contamination.”

According to The National Center for Biotechnology Information: “There are two opposing risks when it comes to water temperature inside domestic water heaters; exposure to Legionella, the bacteria responsible for Legionnaires’ disease (pulmonary legionellosis), and the risk of scalding.” (read more…)

Legionella bacteria triggers a type of pneumonia and is passed to people when one inhales water contaminated with the bacteria – typically in showers, whirlpool baths or even air conditioning systems. Consuming the water is typically ok. It is an issue with having the germs get in ones lungs.

The Centers for Disease Control and Prevention estimates 8,000 to 18,000 Americans contract the disease every year. 5 to 30 percent of the cases are fatal.

According to the Occupational Safety & Health Administration, here are some of the factors that can increase the risk of getting the disease:

  • Organ transplants (kidney, heart, etc.)
  • Age (older persons are more likely to get disease)
  • Heavy smoking
  • Weakened immune system (cancer patients, HIV-infected individuals)
  • Underlying medical problem (respiratory disease, diabetes, cancer, renal dialysis, etc.)
  • Certain drug therapies (corticosteroids)
  • Heavy consumption of alcoholic beverages

Cases to not have the water heater temperature level set at 140 degrees would be if there are children in the residence or possibly with elderly people too. The threat of being burnt if the faucet was fully on hot water can be too great. Undoubtedly, anybody living in the home that is at risk of contracting Legionella Disease need to have it set at 140.


So choose if there are any concerns of people burning themselves if the water temperature is too hot. Likewise, be aware of any individual who has issues of contracting Legionella Disease. Because the yearly expense savings of turning the temperature down is just about $20 most the time with the typical home’s hot water usage, it may be an excellent choice to keep the temperature level above 120 degrees just for the health related benefits; nonetheless, Water Heater Repair Syracuse NY will let you make the call.

The following 2 videos demonstrate how to adjust the temperature level on both an electric and a gas water heater in case you are uncertain exactly how to do so.

How to Change the Temperature on an Electric Hot Water Heater

How To Change The Temperature On A Gas Water Heater

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