What is the Perfect Water Heater Temperature

Posted by on May 15, 2014 in Water Heater Repair Alpharetta GA

There are different views on exactly what is the finest temperature level at which to set ones water heater. Water Heater Repair Alpharetta GA will be sharing some of the different views with specific evidence from those sources in order for one to make his or her own decision on the subject.

First off, the default setting most water heater producers have their tanks set at is 140 degrees. If you have never checked this already on your Alpharetta Water Heater, that could be the temperature it is set. Also, it can be hard to know for sure exactly what the temperature setting is due to the fact that sometimes the temperature level dial does not have actual degrees printed on it, simply warm, hot, really hot … something to that end. Some people feel they are pre-set at a higher temperature level so it feels outstanding to have a great deal of hot water – kind of like trying to produce good brand awareness in consumers.

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

Let’s begin with the most likely the most popular source, the U.S. Department of Energy. They suggest a setting of 120 degrees. The link to their website above provides lots of good info on the best ways to decrease ones hot water consumption and costs. It is for sure worth a read.

Now for the health dangers of too low of a temperature level setting. It can be shown that Legionella bacteria has the optimum development range between 68 to 122 degrees. It is believed that 25 percent of all water heaters have differing levels of Legionella bacteria contamination.

Legionella bacteria causes a kind of pneumonia and is passed to people when one inhales water contaminated with the bacteria – usually in showers, whirlpool baths or even a/c systems. Drinking the water is generally ok. It is an issue with having the bacteria get in ones lungs.

The Centers for Disease Control and Prevention estimates 8,000 to 18,000 Americans contract the illness annually. Five to 30 percent of the cases are fatal.

According to OSHA, “At low levels of contamination, the chance of getting Legionnaires’ disease from a water source is very slight. The problem arises when high concentrations of the organism grow in water systems. Water heaters, cooling towers, and warm, stagnant water can provide ideal conditions for the growth of the organism.”  (read more)

Cases to not have the water heater temperature level set at 140 degrees would be if there are small kids in the home or possibly with elderly people too. The risk of being burnt if the faucet was completely on hot water can be too great. Clearly, any individual living in the house that is at danger 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 level is too hot. Also, be mindful of any individual who has issues of contracting Legionella Disease. Considering that the yearly cost savings of turning the temperature level down is just about $20 most the time with the average home’s hot water use, it might be a great choice to keep the temperature above 120 degrees simply for the health related benefits; nonetheless, Hot Water Heater Repair in Alpharetta GA will let you make the call.

Water Heater Repair Alpharetta GA

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