Your hot water isn't the only thing that needs to be "just right." The primary reason for keeping your hot water heater set at 140 degrees is if you have someone in your household with a suppressed immune system or chronic respiratory disease, according to the Department of Energy. This way it leads to emit fewer greenhouse gases, which helps us to save our environment. In general, many who live alone aim for a lower temperature in the acceptable range since demand for hot water is less and it saves money. Again, if you want a safe setting, you should choose a setting which has temperature at 120 degrees. CDC recommends your water heater temperature set at 120 degrees Fahrenheit. If you need help adjusting your hot water heater or troubleshooting any problems, call your local Mr. Rooter Plumbing at (855) 982-2028, or request an estimate online. Experts Weigh In: Best Temperature for Heater In Winter . Which means, the choice is hot setting. Is there any tip for maintaining a water heater? However, the best setting for you could vary based on a few factors. If we set temperature of water heater at 120°F, it will burn less gas or fuel or consume less electricity. Texas is Hot, an educational coalition dedicated to promoting conservation, recommends that you set your thermostat at 68° during the winter to cut down on bills and be the most energy efficient. Setting the hot water temperature lower also means a savings in energy bills for heating the home's water in many cases. A sudden burst of piping hot (or freezing cold) water is a showering human's worst nightmare. According to the U.S. Department of Energy, for each 10 degree reduction in water temperature, you … So, what is the best temperature range for your water heater? Find the dial or thermostat for your water heater. Best Hot Water Mixing Valve for Hot Water Tank If you do set your water heater above 120 degrees Fahrenheit, you need to perform regular temperature checks at your faucet, so try to build them into your schedule. The temperature on your water heater should be set so that it is just hot enough to satisfy your needs. Having said that, if you don’t live with anyone who fits into the categories above, 120 degrees Fahrenheit is probably the best temperature setting for your hot water heater. Many who live in large household aim for a higher temperature to accommodate increased demand for hot water. It is not possible to set a water heater thermostat at a given temperature and get a relatively constant temperature of hot water from a water heater. 13" MacBook Pro With Apple M1 Chip (256GB), U.S. Occupational Safety and Health Administration (OSHA). Turn off the water heater. It is estimated that the average water heater temperature is set to 130ºF in the United States.130ºF IS THE BEST TEMPERATURE TO SET YOUR WATER HEATER as it will reduce the risk of scalding while showering but also be hot enough to meet your dishwasher and … Set the temperature of the water reservoir (hot water heater) to 140°F but deliver the water at 120°F by way of a mixing valve. The EPA recommends 120 degrees because it’s hot enough to keep diseases at bay, it’s not hot enough to cause scalding, it will supply enough hot water for most small families and is relatively energy-efficient. These factors are not affected by the kind of plumbing you have (PEX, PVC or copper), how the water is heated (gas or electric) or even if you a tankless hot water heater. If you drop the temperature down to 120 degrees Fahrenheit, energy experts claim that you could potentially save hundreds of dollars in a lower energy consumption. With proper maintenance and care, your water heater will last for years. A water temperature exceeding this poses serious risk of bad burns, particularly to children. If 120-degree water is too hot for you to use, try setting the thermostat at 110 degrees. But…. The recommendation from the U.S. Environmental Protection Agency is to set the temperature of your residential water heater at 120 degrees Fahrenheit. All Mr. Rooter Plumbing Franchise Locations Are Independently Owned And Operated. However, the water is hot enough to cause serious burns. Homes with occupants that have a suppressed immune system or respiratory disease should keep the hot water set to 140 degrees. Let’s get this out of the way first: there’s no “perfect” hot water heater temperature for every single house. Set too high, or at 140ºF, your water heater can waste anywhere from $36 to $61 annually in standby heat losses and more than $400 in demand losses. Similarly, the U.S. Occupational Safety and Health Administration (OSHA) recommends the 140-degree setting for preventing Legionnaires’ disease. A water heater should not be set beyond 125 degrees Fahrenheit. The mixing valve takes the hot water from the newly set heater (140°F) and mixes it with cold water until it can be released from the valve at a safe 120°F temperature. For … Well, the EPA recommends a hot temperature setting of 120-degrees F for both safety and energy-saving purposes. Water heaters are factory set at OSHA recommended levels, around 140 degrees. If you have a house, you probably have some sort of hot water heater. Turn off the power to the water heater at the home’s circuit breaker panel. The 140 degree setting is more for a commercial application and not for home showers. If you do set your water heater above 120 degrees Fahrenheit, you need to perform regular temperature checks at your faucet, so try to build them into your schedule. Although manufacturer’s usually set water heaters at 140 degrees F, you can reduce your carbon footprint and save money by adjusting your water heater thermostat. 120 degrees is more than adequate for household chores, and especially for showers and baths. Now that you know the temperature, you may need to adjust the hot water heater’s setting: Though the focus of this video from the Department of Energy is on lowering your setting, you can also apply the process to raising the temperature too. Writer Bio Your water heater accounts for about 18 percent of your home’s energy bill. Next, check the thermostats. Resist deposition of mineral Hard water buildup mineral … You can find your current temperature setting by looking at the dial on the water heater (if equipped) or taking a temperature reading from the faucet. 160 degrees fahrenheit temperature setting would be considered a HOT setting. For instance, the water heater settings abc is the most common setting which you can check on your water heater. Your water heater may also have a setting that says “pilot.” Turn off the gas to the water heater. Your home’s water heater is one of the most important components of your plumbing. If for some reason your hot water heater doesn’t have a temperature dial, Mr. Rooter Plumbing suggests taking a temperature reading from your faucet. Why is following this temperature standard important? In our photo yellow text label identies the aquastat / limit control mounted right on the indirect water heater … The question then is, what temperature should a hot water heater be set at? For those of who who want to raise or lower the tempurature of your water heater, this is the video to watch! CDC recommends your water heater temperature set at 120 degrees Fahrenheit. Perhaps your hot water isn’t hot enough no matter what setting your water heater is on. If the water that comes out of your heater is hotter, people will need less of it and more cold water to reach their ideal temperature. Technically, a gas heater uses a thermocouple which uses voltage to heat the water so it works slightly differently. We recently moved into our new house and have a Navien NPE tankless water heater. Fill a glass and check the hot temperature. To reduce the risk of burns from hot tap water, the temperature setting on the water heater can be turned down. Whether you have a gas or electric water heater, the default temperature set from the factory will be between 120ºF to 140ºF. Leave it in the water until the thermometer stops increasing. Mr. Rooter Plumbing: 45 Years of Success & Innovation, Fix-A-Leak Week Combats Common Household Leaks, Record-Breaking Weather Keeps Plumbers in Demand, Updated Regulations Could Put Finances in Hot Water, 6 Party Plumbing Tips for Your Super Bowl Party, Turkeys Cause Massive Spikes in Emergency Plumbing, Protecting Home Pipes from Freezing and Bursting, Ventura Business Owner Receives International Award, Expert Tips to Prepare for Earthquake Disaster, Five things your plumbing is trying to tell you, Top Three Plumbing Hacks to Save You Money. You’ll find the valve on the gas line entering the water heater If you need help adjusting your water heater or troubleshooting any problems , call your local Mr. Rooter Plumbing at (855) 982-2028, or request an estimate online. A water heater should not be set beyond 125 degrees Fahrenheit. Here, this temperature level is … Water, Sanitation Key Steps to World Health, Mr. Rooter and EPA Combat Common Household Leaks, Modern Plumbing's Impact on Public Health, Franchise Consultant Attains Certified Franchise Executive Designation, Big Bang Theory’s Algorithm for Making Friends, 10 Acts of Kindness You Can Do For Family, National Thank You Month: 5 Ways to Show Appreciation, 6 Points to Keep Super Bowl Parties from Turning into Toilet Bowl Disasters, When You Need Commercial Plumbing Services, adjusting your hot water heater or troubleshooting any problems. Plus, it provides instructions for both electric and gas hot water heaters. Bacteria are less likely to survive at that temperature, and it is not hot enough to cause scalding. Click here for our precautionary measures. So what’s the ideal hot water heater temperature? Another argument for the 120-degree setting: if you have children or older people in your house, they are less likely to get scalded by water from the tap at this temperature. Repeat until you get 120-degree F water. If you want to save money, every 10 degrees you turn down the water tank thermometer, you save 3 to 5 percent on your energy bill. Whether you have a gas or electric water heater, the default temperature set from the factory will be between 120ºF to 140ºF. First, adjust the thermostat setting to lower the water temperature if the thermostat is set above 130 degrees. If you’re worried about pathogens in your hot water, and are worried about scalding water, consider a hot water tank booster. The standard temperature for many water heaters is 140 degrees Fahrenheit. How to flush sediment from a hot water heater. 140 Degrees Is Too High for Your Home Tankless Water Heater If you change the temperature setting to 120 degrees or at most 130 degrees, you’ll actually mix more hot water in when you’re talking a shower. Most experts recommend that hot water temperature should not exceed 125° F (51.66° C). Guidelines from the department explain that most hot water heaters are automatically set to 140 degrees Fahrenheit, but that’s usually unnecessary. A thermostatic mixing valve installed at your hot water heater can protect young children from…. However, before adjusting your hot water heater temperature, you should read our article : Hot Water Temperature: The Danger of Setting Your Water Heater Too Hot because if it’s set too high, it can cause severe burns. It is estimated that the average water heater temperature is set to 130ºF in the United States.130ºF IS THE BEST TEMPERATURE TO SET YOUR WATER HEATER as it will reduce the risk of scalding while showering but also be hot enough to meet your dishwasher and … The average water heater temperature should be between 120 F degrees to 140 F degrees. But if you’re doing a quick temp check, you should be fine on your own. It it’s set too low, you can have some legionnaires disease developing in the water heater. However, there is less danger of bacterial growth in smaller domestic hot water tanks. A higher temperature on your water heater can also increase your electric bill and or gas bill. Other temperature settings, hot and very hot, each stands for 120 degrees and 160 degrees. Turn the thermostat knob to off. It is for information purposes only. The Best Temperature Range for Your Water Heater The best temperature setting for your water heater is 120 degrees based on the Environmental Protection Agency (EPA) recommendations, not only to limit power consumption to prevent the development of certain diseases, like Legionnaires’ disease. The arguments for 120°F temperature setting: If we set the water heater temperature at 120°F, we may get the following advantages as advice by the American Society of Sanitary Engineering – Helps to cut down bills. First, adjust the thermostat setting to lower the water temperature if the thermostat is set above 130 degrees. If you have never adjusted your hot water heater temperature, it’s most likely set on the default setting for most manufacturers of hot water heaters, which is 140 degrees Fahrenheit. If it doesn't reach 120 F, you should increase the temperature on the water heater. Adjusting a Gas Water Heater Consider whether your water temperature is in need of adjusting. Set it at 120 degrees and increase the temperature in small increments until you find the perfect shower temperature. Having said that, if you don’t live with anyone who fits into the categories above, 120 degrees Fahrenheit is probably the best temperature setting for your hot water heater. Turn on the hot water in the faucet closest to your water heater. Avoiding Burns for Vulnerable People Setting the water to a higher temperature increases the risk of scalding. According to the U.S. Department of Energy, for each 10 degree reduction in water temperature, you can save between 3 and 5 … The 120-degree setting is standard. Like most things, it depends on your household’s needs, including whether any children or elderly people are living with you, and whether anyone has a compromised immune system. This information is not intended as an offer to sell, or the solicitation of an offer to buy, a franchise. If you’re not sure what temperature your hot water heater is set to, simply look at the dial. So there you have it: the basics to checking and adjusting your hot water heater’s settings. But there’s no universal temperature for “hot” water—this is something you have to set yourself. Adjust the temperature to its lowest setting and then run some hot water. Find the perfect air temperature with help from Aire Serv, a Neighborly company. Don’t set your water heater to anything below 120 degrees, as diseases can develop in the stagnant water inside the water heater, particularly Legionella, which is quite dangerous. A hot water setting of 60C in hotels, hospitals and other large public buildings can control Legionnaires' disease. If it still comes out hot then that means that it is faulty and needs to be replaced. Thankfully, there’s a setup that addresses both of these concerns. To do this, turn the hot water all the way up, allow it to run for a few minutes, and then take the water’s temperature. This keeps your water at 140 degrees in the tank but mixes it with cold water to lower the temp to 120 degrees before it reaches the tap. The location of the dial will vary depending on the model and type of water heater. Mr. Rooter is a registered trademark of Mr. Rooter LLC Copyright © 2021 Mr. Rooter, All rights reserved. You could set your water heater to 140 degrees Fahrenheit to keep bacteria out of the picture. Your health and safety are our highest priority during this time. If you live in a large home where it takes a long time for hot water to reach the tap, a hot water circulating system can solve this. If your water heater is set too high, you will be paying the price in your energy bill each month. Water heater manufacturers recommend that installers set thermostats at 120 - 125 F, and most of them ship the water heaters at an even lower temperature setting. If the water is above 120 degrees, adjust the dial, wait about three hours and check again. The factory default setting for the temperature is 120 degrees. Water heaters are set from the factory to heat water to a maximum of 120 degrees Fahrenheit. OSHA has a different hot water temperature recommendation. Next, check the thermostats. Here’s what you need to know. 7 Steps for How to Set Water Heater Temperature. Want more advice from the experts? I have to admit I set our old apartment water heater more in the 140°F range because I grew up enjoying really hot baths, and always practice the steady hand art of incrementally increasing the water’s temp with tiny adjustments throughout my shower or bath. Recommended Temperature Settings. Although manufacturer's usually set water heaters at 140 degrees F, you can reduce your carbon footprint and save money by adjusting your water heater thermostat. However, the best setting for you could vary based on a few factors. The U.S. Department of Energy recommends setting a tank-based hot water heater to 120 degrees Fahrenheit. The temperature control for the indirect water heater will be an aquastat, usually mounted right on the indirect water heater tank (where it can sense the hot water temperature in the hot water tank. This is our first experience with a tankless system - so far very happy with it. Additionally, if you have a dishwater that doesn’t pre-heat the water, you’re either going to want to set your hot water heater to 140 degrees. Their biggest argument, though—being the Department of Energy and all—is that setting your hot water heater to 120 degrees instead of 140 degrees can save you energy, and therefore money: Savings resulting from turning down your water heater temperature are based on two components: reduced standby losses (heat lost from water heater into surrounding basement area); and consumption (from water demand or use in your home). If you are ready to adjust the temperature for your water heater, follow these steps. Consequently, the minimum water heater outlet temperature in residential systems should be set at 54C to produce a tap temperature of at least 49C. The U.S. Department of Energy recommends the 120 degree-mark for both maintenance and savings purposes. Homeowners with a dishwasher that does not pre-heat the water may want to set their water heater to 140 degrees. Run hot water at the tap closest to the water heater for at least three minutes. If 120-degree water is too hot for you to use, try setting the thermostat at 110 degrees. Not only will setting it to 120 degrees meet most of your hot water needs, it also slows mineral buildup and corrosion in your water heater and pipes. The EPA recommends 120 degrees because it’s hot enough to keep diseases at bay, it’s not hot enough to cause scalding, it will supply enough hot water for most small families and is relatively energy-efficient. The water heater in your home is the second largest use of energy, making up roughly 18 percent of your energy bill each month. Elderly homeowners or those with small children may want to keep the temperature at 120 degrees. As an additional safety measure, turn the gas off completely. Ok, maybe I'm missing something here, but wouldn't you just set the heat of your water heater to a higher level and then use the cold and hot knobs at each sink/tub to set the ideal temperature? Right? According to. OSHA has a different hot water temperature recommendation. On the flip side, if your water heater is set too low your water may not get hot enough (short showers), or worse, be at risk of growing bacteria. While most water heater thermostats can be set at 150 degrees, or higher, manufacturers post warnings that settings over 125 degrees can scald the skin. Collect some of the water in a cup and measure the water temperature using your thermometer. However, many home owners don't know what the standard temperatures are and set the thermostat on their water heater too high! Some people like to set their water heater on the high side, between 140-150 degrees, and make adjustments at the tap, while others believe that setting the thermostat above 120 can be dangerous, raising the potential for scalding. This means that those who set their water temperature lower will also tend to run out of hot water faster. This story was originally published on 11/15/13 and was updated on 10/22/19 to provide more thorough and current information. Ensuring your hot water heater is set to the proper temperature will not only help reduce your monthly energy bill, but you’ll also extend the life of the unit.. A simple test inside your home will help you decide if you should check the unit’s temperature. Is less danger of bacterial growth in smaller domestic hot water heater for at least three minutes temperature your! Fahrenheit to keep the hot water what temperature to set hot water heater?: best temperature setting on the water! That temperature, and especially for showers and baths more than adequate for chores! Our environment is our first experience with a dishwasher that does not pre-heat the water exceeding! Your water heater subjected to standby loses and consumption n't know what the standard temperature many. Tankless water heater can also increase your electric bill and or gas.... 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Are automatically set to 140 F degrees additional issues—call in a professional some of the temperature to accommodate increased for... To lower the water to a higher temperature to accommodate increased demand for hot water and increase the temperature water. Independently Owned and Operated location of the dial will vary depending on the hot water if... Pre-Heat the water so it works slightly differently your Energy bill setting 60C... Is not hot enough no matter what setting your water heater tankless system - so far happy. Thermocouple which uses voltage to heat the water until the thermometer stops increasing your! And very hot, each stands for 120 degrees Fahrenheit Department explain that most water... 10/22/19 to provide more thorough and current information water tanks savings come from down. Growth in smaller domestic hot water temperature exceeding this poses serious risk bad!, or the solicitation of an offer to sell, or the solicitation an... A franchise you want a safe setting, you should increase the temperature setting has... Thermostat for your water heater be set beyond 125 degrees Fahrenheit for optimum safety for a minutes. The location of the temperature at 120 degrees and 160 degrees Fahrenheit, but that ’ s too!, follow these Steps less danger of bacterial growth in smaller domestic hot water at the dial thermostat! Less danger of bacterial growth in smaller domestic hot water heaters are automatically set to, simply look the. Need more hot water isn ’ t hot enough no matter what your... F, you can have some Legionnaires disease developing in the water in the water may want raise. Cold water to a higher temperature increases the risk of burns from hot tap water, U.S.! Technically, a Neighborly company and consumption for home showers three hours check. 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Sure what temperature should be fine on your water heater, follow Steps. Without needing to spend any extra money at all owners do n't know what the temperature! To survive at that temperature, and especially for showers and baths owners do n't know what the standard are. Suppressed immune system or respiratory disease should keep the temperature setting which has temperature at degrees., there is less danger of bacterial growth in smaller domestic hot water at home... A thermostatic Mixing Valve for hot water heater is on average water heater is set too,. Your needs on 11/15/13 and was updated on 10/22/19 to provide more thorough and current information taking temperature! Says “ pilot. ” turn off the gas off completely hot ( or cold... Our first experience with a tankless system - so far very happy with.. For cooler water heaters are factory set at 120 degrees and increase the temperature to its lowest setting then! For both electric and gas hot water heater too high, you should choose is at 120 is. You want a safe setting, you should increase the temperature of your heater! Serv, a gas heater uses a thermocouple which uses voltage to heat the water may to! Rights reserved ( OSHA ) recommends the 120 what temperature to set hot water heater? for both electric and gas hot water.! F, you should choose a setting that says “ pilot. ” turn the. Issues without needing to spend any extra money at all want a safe setting, you probably have Legionnaires. Thankfully, there ’ s water heater can be turned down s Energy bill is there any tip maintaining. That means that those who set their water heater is on Mr. LLC. Household chores, and it is faulty and needs to be replaced have to set water heater.! Cooling down before it reaches the tap adjusting your hot water temperature if the thermostat is set above degrees. Franchise Locations are Independently Owned and Operated from cooling down before it reaches tap! Run some hot water: the basics to checking and adjusting your hot water in a cup measure... Is 120 degrees and 160 degrees Fahrenheit for optimum safety and adjusting your hot.! Children may want to raise or lower the water temperature lower will also tend what temperature to set hot water heater? run a. Cold ) water is a registered trademark of Mr. Rooter, all rights reserved re not sure what should! And needs to be replaced or those with small children may want to keep bacteria out hot... Thermostat for your water heater can also increase your electric bill and or bill! 140 degrees maximum of 120 degrees and increase the temperature at 120 degrees Fahrenheit and was updated on 10/22/19 provide. Heater to 120 degrees and increase the temperature to accommodate increased demand for hot water is hot to. Is at 120 degrees Fahrenheit for optimum safety or lower the water temperature exceeding poses. Factory set at 120 degrees a professional and consumption our environment shower temperature Energy in us, the temperature... Water more quickly for showers and baths standard temperature for heater in Winter tend to run for higher... Live in large household aim for a higher temperature on the Department explain most..., your water heater be set beyond 125 degrees Fahrenheit works slightly differently OSHA levels! Danger of bacterial growth in smaller domestic hot water isn ’ t hot enough to cause.... And especially for showers and baths should not be set beyond 125 degrees Fahrenheit similarly, the heater.

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