What Temperature Should I Set My Water Heater At? - Plumbing-United
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What Temperature Should I Set My Water Heater At?

December 29, 2023

However, the temperature setting on your water heater may need occasional adjustment to meet your changing needs, improve energy efficiency, or ensure safety. In this guide, we’ll walk you through the steps to quickly and safely adjust your water heater temperature.

Why Adjust the Water Heater Temperature:

Energy Efficiency:

Lowering the temperature can help reduce energy consumption, ultimately saving you money on utility bills. Rejecting additional pre-set degrees can reduce your water bills by a whopping $200 per year! Read more from Energy.gov.

Safety:

Setting the temperature too high can pose scalding risks, especially for children and the elderly. A higher temperature may also increase a  mineral buildup in the tank, reducing the efficiency of the heater over time. 

Comfort:

Adjusting the temperature allows you to find the right balance between comfort and energy savings.

Steps to Adjust Water Heater Temperature:

  1. Turn Off the Power:
    • For electric water heaters, turn off the power at the breaker box.
    • For gas water heaters, set the gas control knob to the “Pilot” position.
  2. Locate the Thermostat:
    • The thermostat is usually located on the side of the tank for electric heaters or under a panel near the gas valve for gas heaters.
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  3. Adjust the Temperature:
    • Use a flathead screwdriver to turn the thermostat dial. Adjust the temperature to your desired setting.
    • The recommended safe temperature is around 120°F to prevent scalding and maintain energy efficiency.
  4. Wait for Water Heater to Adjust:
    • It may take some time for the water heater to reach the new temperature. Test the water at a faucet after a few hours.
  5. Check for Consistency:
    • Test the hot water at various faucets around your home to ensure the temperature is consistent.
  6. Adjust as Needed:
    • If necessary, make further adjustments and repeat the process until you find the ideal temperature for your needs.

Safety Tips:

Avoid Setting Too High:

Keep the temperature below 140°F to prevent scalding.

Consider a Thermostatic Mixing Valve: 

Installing a mixing valve at the water heater outlet can help maintain a consistent and safe hot water temperature throughout your home.

Check the Manufacturer’s Guidelines:

Refer to your water heater’s manual for specific instructions and safety guidelines.

Adjusting your water heater temperature is a simple yet impactful way to enhance energy efficiency, safety, and comfort in your home. By following these steps and keeping safety precautions in mind, you can quickly and safely optimize your water heater for your specific needs. Regularly monitoring and adjusting the temperature will ensure that your water heater operates efficiently, providing hot water when you need it while minimizing energy costs and safety risks.

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Our Reviews

Nancy Ghodrat
Nancy Ghodrat
2023-12-09
Bella is very knowledgeable about tankless water heaters. She determined that the heater that I purchased from Amazon was the wrong model. She went above and beyond the call of duty. She drove me in her car to the UPS store so I can return the heater and then drove me to the supplier store in San Jose (Pace Supply) so I can buy the correct one. She is very honest and showed me the wholesale price of the heater and used her coupon to get me the wholesale price. Umed, the technician, is an expert and did a great job installing the unit. He arrived on time, was very polite, and cleaned the area after his work was done. Bella and Umed put the customer first and provided an excellent service. I highly recommend United Plumbing because of Bella and Umed, their honesty, great service and expertise.
Catherine Hu
Catherine Hu
2023-11-24
Technician Beck came on thanksgiving day, working from 3pm till almost 9pm, to replace a new water heater. In the middle of the installment, he even had to go back to his office and pick up new parts. It was very difficult to set up the tubes at my place since the space for the tubes/water heater was limited. Technician was very patient and friendly the whole time. The pipes after Beck’s work are better designed. I am very grateful they are willing to come on a big holiday like thanksgiving, getting the challenging work done without any complaints. Otherwise it would be a cold shower thanksgiving for us. Highly recommend.
DR BLOCK (DRBLOCK)
DR BLOCK (DRBLOCK)
2023-10-31
United was quick to do an inspection and quote to replace our 20 year old tank water heater for a tankless and was able to start the job the same day. Professional and great service and the price was the lowest I received out of 3 or 4. Highly recommend!
gzarris
gzarris
2023-10-30
Quality work. Respectful of the property, and clean. Showed up on time. Alex gave good advice, answered numerous questions and only charged for the work performed per agreement. We will call them again.
Alvin & Mae Reyes
Alvin & Mae Reyes
2023-10-21
Yuri was great! Yuri came to inspect the pipes that were hearing while the water is running but unfortunately we weren’t able to hear anything at the time of the inspection. Yuri was able to install a new faucet in my kids bathroom. If you are looking for a plumbing company use United Plumbing, from the office to the field the service was great! I will definitely use Yuri and United plumbing again in the future.
Eugene Shoykhet
Eugene Shoykhet
2023-10-18
Amazing service for my low water pressure problem. Highly professional and timely
CB Chang
CB Chang
2023-10-07
Very quick responses with quality service, flexibility to adopt schedule change is good. Technician is professional and friendly. Services charge is very reasonable. I will definitely utilize their services in the future.
Anil Nanda (AKN)
Anil Nanda (AKN)
2023-10-03
They are professional. To the point. Fair transaction. And they provide warranty on their work which is great.
ted schram
ted schram
2023-10-03
They were able to come the same day I called. Service was quick and to the point, and the price was reasonable.
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