The Water Heater Setting That Saves Money Without Scalding Risk
For most of the year, the water in Northern Colorado is fairly cold. This causes your water heater to work harder and can lead to higher energy bills. However, simply lowering your water heater temperature setting is not necessarily the best option. By reaching out to Balance Point Heating, Cooling & Plumbing for your plumbing repairs and maintenance, you can get help adjusting your settings and troubleshooting common issues.
The Short Answer
For most homes, the best water heater temperature is around 120 degrees Fahrenheit. At this setting, you get a good balance of energy savings, safety, and hot water. However, the right number will depend on your household’s needs. The sections below cover the trade-offs at higher and lower settings, how to check your actual water temperature, and how to adjust it safely. If you are experiencing inexplicably high energy bills or other concerning situations, you may need to reach out for professional water heater services.
Why the Recommended Setting Works
So, what temperature should my water heater be? You’ll generally see 120 degrees as the most common recommendation because it sits between two extremes. It provides the maximum energy savings and scald protection while still providing enough hot water.
- Energy Savings: Each degree you lower the setting reduces the amount of energy the unit needs to maintain stored hot water, helping decrease standby heat loss. This is especially true if you have a water heater tank and not a tankless water heater. Even when you are not using hot water, a tank water heater still consumes energy to maintain the temperature of the stored water. By lowering an overly hot setting, you can quickly save money on your energy costs.
- Scald Safety: If your water temperature is above the recommended range, it can burn skin more quickly. This is a greater concern if you have vulnerable household members, such as children or elderly family members. Using the appropriate setting can meaningfully lower that risk.
- Adequate Hot Water: At 120 degrees, your water is still hot enough for comfortable showers, dishwashing, and daily use.
However, there are scenarios where a higher temperature may make sense. If your household has high simultaneous hot water demand, a higher storage temperature combined with a properly installed mixing valve can increase the amount of usable hot water.
The Scald Risk at High Settings
There are two potential safety risks involved in deciding on the right water heater temperature settings, but you can address both of them with a simple adjustment. The hotter the water is, the faster it can scald your skin. This means that the time it takes to develop a serious burn falls as the temperature rises.
The good news is that the risk of scalding can be reduced by lowering the water temperature. It is especially important to be proactive about your temperature settings if there are young children, older adults, or other vulnerable family members in your home.
If you do need hotter stored water for your household’s demand, there are safe ways to do so. A thermostatic mixing valve can allow you to maintain higher temperatures in the tank while delivering water at safer temperatures at the tap. Installing this valve is not a DIY project, so reach out for a professional installation.
The Bacteria Concern at Low Settings
While you may want to lower the water heater temperature to save money, there is such a thing as a setting that is too low. Very low temperatures for long periods can allow bacteria, like Legionella, to start growing in your tank. This is why it is important to balance the risk of bacterial growth in stored water with the risk of scalding at higher temperatures.
In households that have immune-compromised members, it may be advisable to keep your settings on the higher side. Then, you can use mixing valves to ensure the water temperature coming from the tap does not scald anyone. However, you should always talk to a medical professional about which protective measures are necessary for vulnerable members of your family.
How to Check and Adjust Safely
While you can check and adjust some water heater temperature settings yourself, there are situations where you should reach out for professional help. On many electric units, the thermostat sits behind panels near live wiring, so this is not a task you should handle on your own. Additionally, you should never force a stuck dial or open sealed compartments on any type of heater.
To make sure your water heater has the right settings, use the following steps.
- Measure First: The first step is to run the hot water at your tap. With a thermometer, measure the temperature. Dial markings are often inaccurate, so this is the best way to see what temperature is actually being produced.
- Locate the Thermostat: On a gas unit, you’ll generally find the thermostat dial near the bottom of the tank. Electric units generally have thermostats behind access panels. Because this is an electrical safety risk, you should leave opening panels and adjusting the temperature on electric tanks to the professionals.
- Adjust Gradually: Make small changes to the thermostat temperature. Then, wait several hours for the tank’s temperature to stabilize and re-measure the water at the tap.
If the measured temperature doesn’t match the setting or the temperature will not hold steady, you may be dealing with a heating-element or thermostat problem. In this case, you should call for Fort Collins water heater service.
When to Call Balance Point
While some adjustments can be handled on your own, you should call for professional help if you experience any of the following situations.
- The water heater is too hot at a lower setting, indicating a potentially faulty thermostat.
- Your household has young children, older adults, or vulnerable family members who need scald protection, so you want a mixing valve installed.
- The temperature will not remain steady, or the water only becomes lukewarm.
- The tank isn’t producing any hot water.
- The unit is electric, and you cannot adjust the thermostat without being near live wiring.
- You notice symptoms of a failing unit, such as rust-colored water, inconsistent heating, or unusual noises.
Our team can help you quickly determine the underlying problem and the best repair solution. Afterward, our membership plan makes planning routine inspections and maintenance easy.
FAQs
What temperature should my water heater be set to?
For the majority of homes, 120 degrees is the recommended setting. This temperature balances energy savings, scald safety, and an adequate level of hot water. However, the correct temperature can vary based on your household’s needs.
Does lowering my water heater temperature really save money?
Yes, it will if your current temperature is higher than necessary. When a water heater is set too warm, the unit expends extra energy maintaining the temperature. By lowering an excessively hot setting, you can save money on your energy bills.
Is 140 degrees too hot for a water heater?
By setting your water heater to 140 degrees, you can increase the scald risk significantly, especially for children and older adults. Most households will do better at a lower setting. If you need a higher storage temperature, it is a good idea to install a mixing valve to prevent scalding.
Can setting my water heater too low be unsafe?
If you set your water heater temperature too low, it can increase the likelihood of bacterial growth. This is one of the main reasons why 120 degrees is the standard recommendation.
How do I know my water heater’s real temperature?
Dial markings are often inaccurate, so the best option is to measure the temperature at the tap with a thermometer.
Find the Right Temperature Settings for Your Water Heater
Want to optimize your water heater temperature setting for savings and safety? Balance Point can check your setting and install scald protection. We offer upfront pricing, same-day services, and a money-back guarantee in the Fort Collins and Loveland areas.
We will quickly adjust your settings, explain the best options for your water heater, and help you decide on the right solution.
Schedule your water heater maintenance and repairs today.










