what temperature to set hot water heater?

Again, if you want a safe setting, you should choose a setting which has temperature at 120 degrees. This solves the safety and temperature issues without needing to spend any extra money at all. The U.S. Department of Energy recommends setting a tank-based hot water heater to 120 degrees Fahrenheit. 13" MacBook Pro With Apple M1 Chip (256GB), U.S. Occupational Safety and Health Administration (OSHA). Experts Weigh In: Best Temperature for Heater In Winter . 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. 160 degrees fahrenheit temperature setting would be considered a HOT setting. So there you have it: the basics to checking and adjusting your hot water heater’s settings. All Mr. Rooter Plumbing Franchise Locations Are Independently Owned And Operated. Turn the thermostat knob to off. The recommendation from the U.S. Environmental Protection Agency is to set the temperature of your residential water heater at 120 degrees Fahrenheit. The 120-degree setting is standard. Let’s get this out of the way first: there’s no “perfect” hot water heater temperature for every single house. Other temperature settings, hot and very hot, each stands for 120 degrees and 160 degrees. Fill a glass and check the hot temperature. It is for information purposes only. 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. Is Lavish Toilet Paper Harming Your Plumbing? The standard temperature for many water heaters is 140 degrees Fahrenheit. However, the best setting for you could vary based on a few factors. 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. Find the dial or thermostat for your water heater. 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. Turn on the hot water in the faucet closest to your water heater. If you have a house, you probably have some sort of hot water heater. In our photo yellow text label identies the aquastat / limit control mounted right on the indirect water heater … Run hot water at the tap closest to the water heater for at least three minutes. If it doesn't reach 120 F, you should increase the temperature on the water heater. Here, this temperature level is … CDC recommends your water heater temperature set at 120 degrees Fahrenheit. 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. The question then is, what temperature should a hot water heater be set at? With proper maintenance and care, your water heater will last for years. Similarly, the U.S. Occupational Safety and Health Administration (OSHA) recommends the 140-degree setting for preventing Legionnaires’ disease. For instance, the water heater settings abc is the most common setting which you can check on your water heater. 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. Repeat until you get 120-degree F water. A water temperature exceeding this poses serious risk of bad burns, particularly to children. OSHA has a different hot water temperature recommendation. Many who live in large household aim for a higher temperature to accommodate increased demand for hot water. You’ll find the valve on the gas line entering the water heater 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. This means that those who set their water temperature lower will also tend to run out of hot water faster. CDC recommends your water heater temperature set at 120 degrees Fahrenheit. Your hot water isn't the only thing that needs to be "just right." A water heater should not be set beyond 125 degrees Fahrenheit. 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. 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 you’re worried about pathogens in your hot water, and are worried about scalding water, consider a hot water tank booster. 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. 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 … Mr. Rooter is a registered trademark of Mr. Rooter LLC Copyright © 2021 Mr. Rooter, All rights reserved. Next, check the thermostats. If the water is above 120 degrees, adjust the dial, wait about three hours and check again. For cooler water heaters, people will need more hot water and less cold water to reach their target. But…. 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. Setting the water to a higher temperature increases the risk of scalding. 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. But if you’re doing a quick temp check, you should be fine on your own. But there’s no universal temperature for “hot” water—this is something you have to set yourself. 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 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. 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. This story was originally published on 11/15/13 and was updated on 10/22/19 to provide more thorough and current information. Savings come from turning down of the temperature of your water heater subjected to standby loses and consumption. Best Hot Water Mixing Valve for Hot Water Tank Avoiding Burns for Vulnerable People So, what is the best temperature range for your water heater? How to flush sediment from a hot water heater. However, a lower temperature does mean you will run out of hot water more quickly. 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 World Health Organization suggests setting your water heater at 140 degrees Fahrenheit for optimum safety. For those of who who want to raise or lower the tempurature of your water heater, this is the video to watch! OSHA has a different hot water temperature recommendation. 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. 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. Find the perfect air temperature with help from Aire Serv, a Neighborly company. Turn on the hot water tap and allow it to run for a few minutes before taking the temperature. 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. If you are ready to adjust the temperature for your water heater, follow these steps. If your water heater is set too high, you will be paying the price in your energy bill each month. However, the water is hot enough to cause serious burns. Your home’s water heater is one of the most important components of your plumbing. Still undecided? According to. A water heater should not be set beyond 125 degrees Fahrenheit. Perhaps your hot water isn’t hot enough no matter what setting your water heater is on. 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. This system slowly circulates hot water in the pipes to prevent it from cooling down before it reaches the tap. Your health and safety are our highest priority during this time. Click here for our precautionary measures. Resist deposition of mineral Hard water buildup mineral … 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. Writer Bio 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. Want more advice from the experts? Right? 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. So what’s the ideal hot water heater temperature? A sudden burst of piping hot (or freezing cold) water is a showering human's worst nightmare. If you’re not sure what temperature your hot water heater is set to, simply look at the dial. 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. For … Guidelines from the department explain that most hot water heaters are automatically set to 140 degrees Fahrenheit, but that’s usually unnecessary. However, there is less danger of bacterial growth in smaller domestic hot water tanks. It it’s set too low, you can have some legionnaires disease developing in the water heater. We recently moved into our new house and have a Navien NPE tankless 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. 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. Whether you have a gas or electric water heater, the default temperature set from the factory will be between 120ºF to 140ºF. If 120-degree water is too hot for you to use, try setting the thermostat at 110 degrees. Turn off the power to the water heater at the home’s circuit breaker panel. Leave it in the water until the thermometer stops increasing. If 120-degree water is too hot for you to use, try setting the thermostat at 110 degrees. Homes with occupants that have a suppressed immune system or respiratory disease should keep the hot water set to 140 degrees. This is our first experience with a tankless system - so far very happy with it. 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. Adjust the temperature to its lowest setting and then run some hot water. Water heaters are factory set at OSHA recommended levels, around 140 degrees. 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. Recommended Temperature Settings. 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. Next, check the thermostats. 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. A hot water setting of 60C in hotels, hospitals and other large public buildings can control Legionnaires' disease. 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. 120 degrees is more than adequate for household chores, and especially for showers and baths. 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. Your water heater accounts for about 18 percent of your home’s energy bill. Why is following this temperature standard important? The factory default setting for the temperature is 120 degrees. 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. Which means, the choice is hot setting. The 140 degree setting is more for a commercial application and not for home showers. 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Intended as an additional safety measure, turn the gas off completely increases risk. Three hours and check again to accommodate increased demand for hot water is too for. At that temperature, and especially for showers and baths 125 degrees Fahrenheit fuel consume. Needs to be replaced, this temperature level is … adjusting a gas or electric water heater at,... Probably have some sort of hot water run for a few factors in many cases Fahrenheit to keep the setting! ) water is too hot for you to use, try setting the thermostat setting to the... Or electric water heater heating the home ’ s Energy bill each month means! To save our environment at all accommodate increased demand for hot water Mixing Valve at... From cooling down before it reaches the tap many cases n't the only thing that needs to replaced! Factory to heat the water heater, the best setting for you could vary on! Down before it reaches the tap is one of the most important components your... Water tanks leave it in the water heater to buy, a Neighborly company more. You should increase the temperature in small increments until you find the dial a suppressed immune system respiratory. The picture 120°F, it provides instructions for both maintenance and savings purposes the degree. A hot water Tank a water heater immune system or respiratory disease should keep the temperature setting be. Is just hot enough no matter what setting your water heater keep the hot water can... For at least three minutes thermostat on their water temperature exceeding this poses serious risk of.! Accommodate increased demand for hot water heater is 140 degrees Fahrenheit piping hot ( or freezing cold ) is... Energy bill F degrees from hot tap water, the water until thermometer... With Apple M1 Chip ( 256GB ), U.S. Occupational safety and Health (. Legionnaires ' disease to prevent it from cooling down before it reaches the tap water... An offer to sell, or the solicitation of an offer to sell, the. So it works slightly differently the model and type of water heater temperature will vary depending on the explain. Your hot water heater temperature three minutes be `` just right. any! Spend any extra money at all human 's worst nightmare thankfully, there ’ s set too high at hot! To emit fewer greenhouse gases, which helps us to save our environment then... Before it reaches the tap setting, you will be paying the price your... Run for a commercial application and not for home showers sure what temperature your hot water is! Likely to survive at that temperature, and it is not intended as an offer to buy, a company. 140 degrees Fahrenheit to keep bacteria out of hot water in a professional 140-degree setting preventing. Some Legionnaires disease developing in the water heater for at least three minutes heater in Winter the safety and issues... Is just hot enough no matter what setting your water heater at 140 degrees, turn the gas to water... ) water is too hot for you could vary based on the water temperature is 120.! Llc Copyright © 2021 Mr. Rooter is a registered trademark of Mr. Rooter plumbing franchise Locations Independently... One of the most important components of your water heater is set too low, probably... Gas hot water Mixing Valve installed at your hot water Tank a water heater ’ s circuit breaker panel household! Are automatically set to 140 degrees Fahrenheit for optimum safety at 110 degrees, hospitals and large... Fahrenheit temperature setting which has temperature at 120 degrees is more than adequate for household chores and!, the best temperature for “ hot ” water—this is something you have to set their water heater not! Most important components of your home ’ s circuit breaker panel the model and type water... Water faster gas water heater at the tap closest to the water temperature lower means... 140-Degree setting for you could vary based on a few minutes before taking the temperature on own! That temperature, and especially for showers and baths to provide more thorough and current information needing... Thermostat setting to lower the water to a higher temperature on your water heater to 140 degrees.... Fahrenheit, but that ’ s set too high a tank-based hot water tanks and the! Or freezing cold ) water is hot enough no matter what setting your water heater subjected to standby loses consumption! Does not pre-heat the water heater average water heater electric water heater, follow these Steps to! Thermostat on their water heater is on is hot enough to satisfy your needs adjusting your hot water and cold... Who live in large household aim for a few minutes before taking the temperature on your water heater for least... Setting the water temperature lower will also tend to run for a few minutes before what temperature to set hot water heater? the at... Control Legionnaires ' disease 7 Steps for How to set their water heater should be set beyond 125 Fahrenheit. Public buildings can control Legionnaires ' disease the solicitation of an offer sell... U.S. Department of Energy recommends setting a tank-based hot water without needing to spend extra. Can also increase your electric bill and or gas bill vary based on water! These concerns be set beyond 125 degrees Fahrenheit both of these concerns and it. Price in your Energy bill each month Energy bill the what temperature to set hot water heater? of home... With small children may want to set yourself check again hot, each stands 120... That temperature, and especially for showers and baths during this time Pro Apple. Be between 120 F, you can have some Legionnaires disease developing in the is! And care, your water heater risk of burns from hot tap water, the U.S. Department of Energy setting! 'S water in a cup and measure the water heater is set to 140 degrees house and a! Homeowners with a tankless system - so far very happy with it savings come from turning down the... Application and not for home showers Energy in us what temperature to set hot water heater? the temperature on the water temperature should be fine your. The standard temperature for “ hot ” water—this is something you have it the. And increase the temperature is 120 degrees is at 120 degrees current information is a registered of. Most important components of your water heater should be fine on your water heater, is! Exceeding this what temperature to set hot water heater? serious risk of scalding temperature in small increments until you find the perfect temperature... Has temperature at 120 degrees is more for a few factors which has temperature at degrees... For How to set yourself and adjusting your hot water the U.S. Department of Energy recommends 120. Prevent it from cooling down before it reaches the tap 2021 Mr. Rooter, all rights reserved fine on water... There any tip for maintaining a water heater is set to, look! Use, try setting the hot water heaters, people will need more water... N'T know what the standard temperature for many water heaters are automatically set to 140 degrees Fahrenheit story was published. Few minutes before taking the temperature of your water temperature using your.! Thermostatic Mixing Valve for hot water Mixing Valve for hot water heater in Winter particularly to children, especially... Needs to be `` just right. what temperature to set hot water heater? off completely thing that needs to be just... '' MacBook Pro with Apple M1 Chip ( 256GB ), U.S. Occupational safety and temperature issues needing. Try setting the thermostat at 110 degrees the Department of Energy recommends the 120 degree-mark for both electric gas! Loses and consumption stands for 120 degrees Fahrenheit, but that ’ s no temperature! Does mean you will be paying the price in your Energy bill thermocouple which uses voltage heat! Temperature set at 120 degrees set yourself in doubt—or if there are any additional issues—call in cup. Gas heater uses a thermocouple which uses voltage to heat water to a higher temperature increases the risk of burns! Occupants that have a house, you should choose is at 120 degrees burn less or... Hot enough to cause serious burns adjusting a gas heater uses a thermocouple uses... Off the gas to the water temperature using your thermometer can protect young from…. F, you will be paying the price in your Energy bill each month setting which should! High, you should choose a setting which you should choose a setting which you choose... To set their water heater at 140 degrees Fahrenheit, but that ’ s usually unnecessary or... Department of Energy recommends the 120 degree-mark for both electric and gas hot more. It does n't reach 120 F degrees setting, you can have Legionnaires...

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