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. Your water heater accounts for about 18 percent of your home’s energy bill. 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. Guidelines from the department explain that most hot water heaters are automatically set to 140 degrees Fahrenheit, but that’s usually unnecessary. Turning the screwdriver clockwise will increase the temperature of the water that the heater will produce. Avoid setting your water heater to a temperature higher than 120 °F (49 °C). 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 U.S. Department of Energy recommends the 120 degree-mark for both maintenance and savings purposes. However, the best setting for you could vary based on a few factors. 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. On your hot water heater there will be a knob on the gas valve or a thermostat (if electric) behind an electric water heater panel. 160 degrees fahrenheit temperature setting would be considered a HOT setting. 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. Mr. Rooter is a registered trademark of Mr. Rooter LLC Copyright © 2021 Mr. Rooter, All rights reserved. The 140 degree setting is more for a commercial application and not for home showers. Smith. For those of who who want to raise or lower the tempurature of your water heater, this is the video to watch! Well, the EPA recommends a hot temperature setting of 120-degrees F for both safety and energy-saving purposes. • The water heater and/or pipes are located in an area with high ambient temperatures (e.g., an attic). Click here for our precautionary measures. However, if you have a compromised immune system or are prone to respiratory conditions, you should consider setting the temperature … Plus, it provides instructions for both electric and gas hot water heaters. The last, C knob setting stands for 150 degrees. This system slowly circulates hot water in the pipes to prevent it from cooling down before it reaches the tap. 4. Find the perfect air temperature with help from Aire Serv, a Neighborly company. Cooler temperatures mean warmer clothes, chilly nights and maybe even a fire in the fireplace. Changing Water Heater Temperature Settings. To reduce the risk of burns from hot tap water, the temperature setting on the water heater can be turned down. Oftentimes, water heaters will have additional options to either lower or increase the temperature of the water inside. Adjusting a Gas Water Heater Consider whether your water temperature is in need of adjusting. Fortunately, most water heater types are adjusted similarly. The U.S. Department of Energy recommends setting a tank-based hot water heater to 120 degrees Fahrenheit. Your health and safety are our highest priority during this time. According to. I set mine at 125F, which is the recommended setting for my REEM water heater. The temperature can be adjusted up or down by a control on the unit. A thermostatic mixing valve installed at your hot water heater can protect young children from…. All Mr. Rooter Plumbing Franchise Locations Are Independently Owned And Operated. To reduce the risk of burns from hot tap water, the temperature setting on the water heater can be turned down. REMOVE THE COVERS – using the phillips-head screwdriver. Determine What Type You Have. Homes with occupants that have a suppressed immune system or respiratory disease should keep the hot water set to 140 degrees. The interface for setting the temperature on a water heater will vary by type and model. Summary of Setting the Temperature of Your Tankless Water Heater. If your water heater is now set to 140°F note that you can save 3% to 5% of the energy consumption for each 10°F you lower the temperature. 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. But there’s no universal temperature for “hot” water—this is something you have to set yourself. If you're going on vacation lower the temperature on your water heater to the lowest setting to save energy and money while you're gone. But if you’re doing a quick temp check, you should be fine on your own. C is hotter than B which is hotter than A. 120 Degrees is the Suggested Setting!!! For … Adjusting water heater temperature. The standard temperature for most water heaters is 140 degrees F, but the Department of Energy Link opens in a new tab recommends turning down the temperature to 120 degrees to save energy. You can save a little energy and money by decreasing the water heater’s burden. But…. The highest will increase the temperature to above 160 degrees. So if B is too hot, set it to A; if B is too cool, crank it up to C. Generally, A should be as hot as you need, but habits vary. Doing so can present a serious risk of burns, especially for children and the elderly. C is hotter than B which is hotter than A. But finding that setting on the water heater temperature setting dial isn’t easy, because most dials aren’t labeled with numbers. Still undecided? Oftentimes, water heaters will have additional options to either lower or increase the temperature of the water inside. However, there is less danger of bacterial growth in smaller domestic hot water tanks. WARNING!! While turning the temperature up higher can result in burns, turning it lower than the recommended setting can also be dangerous. Homeowners with a dishwasher that does not pre-heat the water may want to set their water heater to 140 degrees. Elderly homeowners or those with small children may want to keep the temperature at 120 degrees. If your water heater is set too high, you will be paying the price in your energy bill each month. It probably takes a long time for a large growth to accumulate again in the sediment once it is sterilized. It’s a common question: what temperature is best for hot water? If you have a house, you probably have some sort of hot water heater. When the temperature finally drops to the point where we can turn on our heaters, remembering the most energy-efficient thermostat setting can be as perplexing as remembering why you walked into the room. 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. 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? In the case of the video’s water heater, A, B and C each have an increase of about 10 degrees. 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. If we set temperature of water heater at 120°F, it will burn less gas or fuel or consume less electricity. Here’s what you need to know. 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. Tank water heaters are typically located in the garage, basement or attic. Similarly, the U.S. Occupational Safety and Health Administration (OSHA) recommends the 140-degree setting for preventing Legionnaires’ disease. Of course it is possible to change the water heater settings on your hot water heater. Right? Sometimes people call in because their tankless water heater keeps cutting on and off. On the other hand, the EPA suggests turning the thermostat down to 120 to reduce power consumption, and a booster heater to … Step 1: Check you water heater temperature setting. 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. The average water heater temperature should be between 120 F degrees to 140 F degrees. WARNING!!! Setting the water to a higher temperature increases the risk of scalding. Your home’s water heater is one of the most important components of your plumbing. Hot Water Can Cause Severe Burns! 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. So, what is the best temperature range for your water heater? Tank water heaters are typically located in the garage, basement or attic. So a lot of people crank it up as high as they can get, and they’ll get it up to 140 degrees. In common, the A B C knob has different temperature settings. Is Lavish Toilet Paper Harming Your Plumbing? U.S. Occupational Safety and Health Administration (OSHA). But finding that setting on the water heater temperature setting dial isn’t easy, because most dials aren’t labeled with numbers. 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 … If you’re not sure what temperature your hot water heater is set to, simply look at the dial. Know the Ideal Setting: The best setting for gas water heaters is around 115 to 120 degrees Fahrenheit. Temperatures maintained below 140°F (60°C) encourage growth of Legionella bacteria and other microorganisms! Set it at 120 degrees and increase the temperature in small increments until you find the perfect shower temperature. So what’s the ideal hot water heater temperature? Lowering the temperature on your heater will save you money on your energy bill. Recommended Temperature Settings Water heaters are factory set at OSHA recommended levels, around 140 degrees. But if the temperature is set too low, bacteria may begin to … So there you have it: the basics to checking and adjusting your hot water heater’s settings. 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. A water heater set to 120 degrees may be just fine for most people. If you’re worried about pathogens in your hot water, and are worried about scalding water, consider a hot water tank booster. Decrease the temperature to save money on your utilities. 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. 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. Your home’s water heater is one of the most important components of your plumbing. 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. Every water heater is preset in America to 120F by the manufactures, but some states like Wisconsin require the water heater temp to be at least 125F. They relate to the relative temperature of the hot water. Here's how to change the temperature on your tankless water heater. A sudden burst of piping hot (or freezing cold) water is a showering human's worst nightmare. They relate to the relative temperature of the hot water. Well, the EPA recommends a hot temperature setting of 120-degrees F for both safety and energy-saving purposes. How Long Does A Water Heater Take To Heat Up, How to Clean Frosted Glass for Door and Vase…, How to Fill Large Holes in Wood Using Epoxy, How to Make Super Glue Dry Faster and Quicker. The lowest setting is the factory setting of 120 degrees. This way it leads to emit fewer greenhouse gases, which helps us to save our environment. In the case of the video’s water heater, A, B and C each have an increase of about 10 degrees. Turn on the hot water tap and allow it to run for a few minutes before taking the temperature. On my water heater I get 120°F water with a setting of ‘B.’ When the temperature at the tap is 120°F the temperature in the tank will be about 130°F which is enough to prevent bacterial growth. Water temperature in the tank can be higher than the thermostat setting. It all depends though, on the size of your water heater and the number of machines using your water heater, as well. This can be prevented by setting the water heater to a temperature where the bacteria Legionella cannot thrive. 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. Professionals recommend keeping your water heater set at a temperature between 130 and 140 degrees Fahrenheit. 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. 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. In this post, we’ll discuss the best temperature to set your thermostat in winter, … Residential tank water heaters typically store between 20 and 80 gallons of hot water hot throughout, usually at the factory setting of 120°F. 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. Let’s get this out of the way first: there’s no “perfect” hot water heater temperature for every single house. So if B is too hot, set it to A; if B is too cool, crank it up to C. Generally, A should be as hot as you need, but habits vary. Most hot water heaters have a A-B … 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. Some of the reasons are: • Incoming water temperature is higher than the set point (e.g., solar-heated water). With proper maintenance and care, your water heater will last for years. Perhaps your hot water isn’t hot enough no matter what setting your water heater is on. Savings come from turning down of the temperature of your water heater subjected to standby loses and consumption. Most of the time we find that when we go out there that the water heater is set too hot. Residential tank water heaters typically store between 20 and 80 gallons of hot water hot throughout, usually at the factory setting of 120°F. Whether you have a gas or electric water heater, the default temperature set from the factory will be between 120ºF to 140ºF. 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