It allows me to keep my water heater at 140 degrees but will mix the water exiting the tank with cold water so that my hot water can be delivered to my tap at 120 degrees to prevent scalding. If all else fails, the heating element may be failing, and needs to be replaced. The thermostat constantly monitors water temperature in the tank. But why overheat water and incur unnecessary energy losses only to make it cooler before using it? Clean Your Natural Gas Range in 10 Minutes or Less. I can’t believe that I’m setting my water heater temperature too high for so many years without something needs to be fixed. And like another commenter said, we drink the cold water anyway. Energy.gov recommends a water temperature of 120 degrees Farenheit for your water heater. It’s on warm. Thermostatic mixing valves also mitigate against the dreaded “flush flash.”. If 120-degree water is too hot for you to use, try setting the thermostat at 110 degrees. Summary. Tank style water heaters, by contrast, are quite happy taking in water of any temperature and putting out 120ºF to 140ºF without the need for a mixing valve. I also add sodium hypochlorite, a table spoon in the water a wash dishes with, and let to stay for 15-30 minutes before washing. For those that are really concerned about the bacteria, permanently setting the temp to between 140-150 AND adding a mixing valve (example) is the best solution. What Temperature Should a Hot Water Heater Be Set At? Call 1-877-467-2262, Less than 3,000 therms per year? Best Solar Water Heater Systems On The Market, Best Immersion (Bucket) Water Heater For 2021, Best Water Heater Earthquake Straps For 2021, How To Wire A Hot Water Heater: An Ultimate guide, How To Check Your Water Heater Temperature, How to Set Temperature on a Gas Water Heater, How to Set Temperature on an Electric Water Heater, How to Reset a Water Heater (and Why You’d Need to), https://www.waterheaterhub.com/hot-water-smells-like-rotten-eggs-fix/. It is best not to deviate too far from that mark. On the other hand, the EPA suggests turning the thermostat down to 120 to reduce power consumption, and a booster heater to … Measure the beginning temperature of your hot water using a thermometer at the tap farthest from the water heater. Repeat until you get 120-degree F water. Appreciate the comment. Thermostat dials are often inaccurate. Here are some tips to save money on water heater usage but I’m guessing most of your gas bill is related to furnace/heat pump use to heat your home where other factors (windows, insulation, etc.) Water heaters are factory set at OSHA recommended levels, around 140 degrees. Is it the relief valve or themostat or both? Knowing how to adjust the temperature can help protect your family, reduce your energy consumption and ultimately save you money. Well, the EPA recommends a hot temperature setting of 120-degrees F for both safety and energy-saving purposes. In most cases, here’s what each label means: Sometimes there is a “Vacation” setting. If your water heater is set too high, you will be paying the price in your energy bill each month. Normally this cold water goes to the bottom of the tank via dip tube but if the tube is broken, the cold water would refill at the top which is where hot water is normally taken from. If you are ready to adjust the temperature for your water heater, follow these steps. Next, check the thermostats. The main thing to worry about with your gas water heater thermostat is the temperature setting. And the best part? If the thermostat isn't sending power to the heating element, replace the 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 … Home » Maintenance » What Is The Best Water Heater Temperature Setting? I solved that problem when I recently installed a new water heater in my home. Why is following this temperature standard important? In the rare chance any bacteria makes it to an outlet, only a tiny percentage of individuals even have the possibility of getting Legionairres (and they have to inhale the hot water or steam in a shower). Is there something we could do. i live in central arkansas and we happen to have great water here; but i do keep my gas water heater at 140. i thought about 150 for a while there, but i dont want to pay the bill for the extra heat i dont need. However, for the purposes of most households, there is no need for the temperature … 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 … Summary. 2/ Earlier this year, I started noticing a SMELL from the Hot Water (in the bathroom) and even noticed some health issues associated. Find the dial or thermostat for your water heater. Here, the recommended setting of temperature which you should choose, is between around 115 degrees Fahrenheit and 120 degrees Fahrenheit. The recommended temperature setting is between 115 degrees and 120 degrees. are the main culprits. Sign up for SCANA Energy and receive the LOWEST price for two winters: 32.9¢/therm. Very interesting stuff. Save my name, email, and website in this browser for the next time I comment. Gas water heaters have a setting knob that can be turned to adjust the temperature. Run hot water at the tap closest to the water heater for at least three minutes. If you don’t notice a difference in water temperature after adjusting the thermostat, it’s also possible you may have a faulty thermostat that needs replacing. Gas Water Heater. It could literally be a potential life saver. Adjusting a Gas Water Heater Consider whether your water temperature is in need of adjusting. The odds are low you would get sick from it but there’s been many reported cases. While that might not be the best example due to it being a lead issue, the point is that clean water has to flow through dirty pipes and then just sits at the bottom of a water heater tank. 120 isnt hot enough, 130 might be perfect, but i prefer 140. (I have pics of the thermastate). A water heater set to 120 degrees may be just fine for most people. Savings come from turning down of the temperature of your water heater subjected to standby loses and consumption. Adjust the temperature to its lowest setting and then run some hot water. How old is the unit? Place a thermometer in a glass of hot water, ours reads 130 degrees recommended for baths, dishwashers. You’d have hot water at the start, but as soon as you start using it, cold water is refilled back into the tank. From what I’ve researched, my recommendation of setting the temp to 130 degrees may not kill Legionella bacteria as quickly as 140, but it should still do the job. A water heater set to 120 degrees may be just fine for most people. Get help from SCANA Regulated. What is wrong? If the water temperature fluctuates but the pilot light is on, the gas valve assembly is probably at fault. Testing the thermostat on a gas water heater is much easier. However, if you have a compromised immune system or are prone to respiratory conditions, you should consider setting the temperature … Fuel sources can be propane, natural gas or electricity. Most heater have a hatch at the factory setting and they may say something like 'Warm' and 'Hot' to give you the sense of which way to go. Thanks for the simple, honest answer! 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 … They cannot be replaced separately from the valve. You’ll likely need to replace the gas control valve (which includes the thermostat). TEMPERATURE REGULATION control has a tamper resistant feature for changing the temperature Due to the nature of the typical gas water heater, the water temperature setting. Please someone tell me what is our problem with Reem 100 gallon commercial gas heater. 1- Temperature setting is at B, but water temperature is over 160. 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. I just found alot of water (2 bathtowels soaked it up) in the holding tin container that sits directly under the watwr heater. The bottom of the tank is corroding? Installed just over year ago in apartment complex, new one given me nothing but problems. The lowest setting is the factory setting of 120 degrees. Fill a glass and check the hot temperature. Different brands of gas water heater control valves may have different labels. Apparently the.water got too hot on high and the relief valve went off. That could be your problem. The main thing to worry about with your gas water heater thermostat is the temperature setting. The water starts to turn cold with just one person taking a shower. Thank you for the article. Use code GP100 when you sign up for service with SCANA Energy. Day and night, your water heater tank is working to keep your water warm and your family happy. Savings come from turning down of the temperature of your water heater subjected to standby loses and consumption. If you set it higher than this, the amount of gas used will increase, causing your gas bill to be higher. I have had it for more than a decade. Check the temperature of the water exiting your faucets. On the other hand, the EPA suggests turning the thermostat down to 120 to reduce power consumption, and a booster heater to reach sanitizing temperatures at select outlets. Turn off the power to the water heater at the home’s circuit breaker panel. With an old water heater, a broken dip tube is often the issue. We recently moved to our home and our gas bill comes 500 a month. The highest will increase the temperature to above 160 degrees. According to the U.S. Department of Energy, for each 10 degree reduction in water temperature, you can save between 3 and 5 … It also has the advantage of giving me the feeling of having a bigger water tank since less hot water is drawn out of the tank during its use. Keep in mind that the thermostat is factory preset to a recommended temperature and changing the setting may increase the potential for serious burns. They can be installed on new or existing water heaters. Most gas control valves have a knob with various labels such as A-B-C on them. Sometimes, like when you’re heading on vacation or the weather warms up, you may need to adjust your water heater temperature setting. *For further information regarding availability, please call 1-877-467-2262. Step 1: Check you water heater temperature setting 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. Adjusting a Gas Hot Water Heater Temperature Thermostat Setting. Here’s how to do it yourself: It’s that easy! I agree….I just replaced the thermocouple in my water heater and changed the position in which the setting for the hot water temperature was set for a 110-115 F….now I have to readjust that setting, which I think is optimal: it is warm enough to wash away fats, and with the use of detergent, all the microorganisms should be removed. Use code LOWEST by Dec. 19 to start saving. If adjusting the thermostat still doesn’t give you the right temperature, it may be time to replace the water heater element. They are the most common way to heat water in the United States. This temperature will produce enough hot water for every household. Oftentimes, water heaters will have additional options to either lower or increase the temperature of the water inside. 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. The Consumer Product Safety Commission (CPSC) recommends setting the water heater at no more than 120 degrees Fahrenheit (49 degrees Celsius) to … If the water is above 120 degrees, adjust the dial, wait about three hours and check again. 120 degrees is sometimes labeled “Hot” or with a little triangle icon. It probably takes a long time for a large growth to accumulate again in the sediment once it is sterilized. The water heater thermostat is part of the gas valve. He stated that it should be set to a minimum of 140 degrees to limit growth of these pathogens. You drink cold water anyway. Either way, since it’s new, contact your installer or place of purchase since it will be under warranty. If your water heater is set too high, you will be paying the price in your energy bill each month. Locate the thermostat adjustment beneath the insulation. Want to speak with someone? SLOW HOT WATER RECOVERY: Thermostat set too low; Heater too small; Turn temperature dial to higher setting; See Sizing Guides. The cold water comes straight from the lines, and doesn’t sit in a tank for such a long time. There is no such requirement in any model plumbing code. That’s a common standard. … Have you ever relaxed in a hot shower after a long day of work or soothed a sore throat with a warm cup of tea? Remember Dr. Marc Edwards of Virginia Tech who helped prove that Flint Michigan had a lead problem in their water supply? I added what they call a “Water Heater Tank Booster”. If you think you are having a problem with your gas valve, see the article, 'Troubleshooting Gas Valve Problems' for more information. Know the Ideal Setting: The best setting for gas water heaters is around 115 to 120 degrees Fahrenheit. I live in a 22/unit Condo Association and about a year ago, we got a new hot water heater (Rheem-Ruud Universal Commercial Gas Water Heater). Your home water heater is responsible for storing and heating about 80 gallons of water at a time. In this post, we’ll discuss the best temperature to set your thermostat in winter, … If it still comes out hot then that means that it is faulty and needs to be replaced. The culprit of the smell you’re experiencing is likely the anode rod but in some cases it may be incorrect venting in the sewer lines. You would need check state regulations. When you say 120 or 140, do you A is 120 degrees & B is 140 degrees? If you are worried about it, turn it up to 140 for an hour or two a week, then back down to 120. 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. 3/ Thru my research I’ve discovered that it is Hydrogen Sulfide. When the dip tube pushes cold water to the bottom of the tank, the heating element begins to heat up that cold water. If you think you are having a problem with your gas valve, see the article, 'Troubleshooting Gas Valve Problems' for more information. You may also choose to turn your hot water heater off completely. The gas water heater pilot light or main burner can ignite ... is a local code or state law requiring a certain temperature water at the hot water tap, then you must take special precau-tions. What Is The Best Water Heater Temperature Setting? there is a lot of very interesting and well conceived information here. Are your savings getting hotter – or is it just your water heater? Most water heaters do not have a temperature gauge with a readout. Start service up to 90 days What could be the cause of this? All you have to do is turn it to make an adjustment. How Does the Gas Water Heater Timer Work? 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. Personally, I believe a water heater should be. Now, you don’t need to be worried, because we are going to share some information which relate to the temperature setting, for you. Turn off the circuit breaker. It sets off the danger of scalding, which increases with age, and with such conditions as peripheral neuropathy, common in people suffering for many diseases, among which one can count diabetes, in which sensation of hot temperatures can be lessen enough to produce large, and deep scalding burns, serious enough! Residential tank water heaters typically store between 20 and 80 gallons of hot water hot throughout, usually at the factory setting of 120°F. Insert your cooking thermometer, and then adjust the settings as desired. Water heaters are factory set at OSHA recommended levels, around 140 degrees. From another point of view, lower temperatures are better for households with small children, while higher temperatures are more efficient at cleaning and sanitizing. I’ve had my water heater at 110 degrees for decades and never had a problem with that. The gas water heater pilot light or main burner can ignite ... is a local code or state law requiring a certain temperature water at the hot water tap, then you must take special precau-tions. This thermostat is a valve in the shape of a dial. Commercial applications are a bit different that residential. There is no such requirement in any model plumbing code. Recommended Temperature Settings. Advice? Reading this made me think of a recent lecture I attended. Usually, when you purchase your tankless water heater you will find that the manufacturer will already have set the thermostat at a temperature of 140 degrees Fahrenheit. To accurately find the hot water heater temperature, you will need a cup and a cooking thermometer. Great question. Allow the water heater to sit for a minimum of one hour without using it, and then turn on the faucet closest to the water heater. If your hot water heater doesn’t have a vacation setting, simply manually adjust your temperature to resemble Vacation Mode by lowering the temperature to 50 degrees Fahrenheit, or the lowest setting your thermostat allows. Turning the screwdriver clockwise will increase the temperature of the water that the heater will produce. The valve assembly features a dial which you can use to adjust the temperature. On a gas hot water heater the temperature dial is on the gas valve at the bottom of the water heater. Using a straight screwdriver, adjust the thermostat control towards the desired temperature. I do have one follow up question: What do you think of the recommendation some experts make to turn one’s hot water heater up periodically (perhaps a couple times a year) to 150 or 160 degrees to disinfect any lingering dangerous bacteria, then return to the normal temperature? Use the labels as a starting point but measure the actual temperature at the closest hot water faucet if you want to be most precise. The temperature can be adjusted up or down by a control on the unit. On older installs, many times the lower element stops working, and then you only have a short supply of hot water. See: https://www.waterheaterhub.com/hot-water-smells-like-rotten-eggs-fix/. Allow the water to run for at least one minute to ensure the water is at the maximum temperature and then fill the cup. Every other page I’ve been to has been long and pretty useless . Your water heater accounts for about 18 percent of your home’s energy bill. However, you may have no clear information about it, don’t you? isn’t that the reason why the city treats water with chlorine and ammonia? The 120-degree setting is standard. 140 seems perfect for our needs. But finding that setting on the water heater temperature setting dial isn’t easy, because most dials aren’t labeled with numbers. For … 2) Mark the setting, then turn down the thermostat. Bacteria loves warm-hot conditions and can quickly multiple. Remove the access panels. Once the water is hot, fill a cup and get the temperature by placing your thermometer in the water. Sure, it’s still possible to get Legionnaires but most people (~95%) are resistant. You can adjust hot water heater settings to get more hot water if you are unhappy with the recommended temperature. 3- Setting temperature at A, water temperature is below 100. Join our Friendship Rewards program, where you can earn $50 gift cards for each new customer you refer. Replace the insulation and panels, then restore power. Check make sure the 2 elements are set to same temp. (retail shop, etc. 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. Whether replacing an old water heater or putting the water heater in a new location, the following critical points must be observed: 1. If you have already set the temperature and are saying to yourself, “I have no hot water” or not enough of it, there are a few factors that may be affecting the heat. Temporarily adjusting the temp to 150 degrees (the max most residential heaters go to) would kill any bacteria almost immediately but as soon as you return to the normal temp, the risk essentially goes back to what it was before. 2- Bottom is corroding already, called Reem, no replacement until visual water leaks. It scalds us even on pilot! Learn more…, Low income or credit challenges? 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. Triggering sensor “too hot”. Flow the six (6) step process to adjust your temperature: 1. It’s interesting that this product isn’t a bit more popular. There have been claims the maximum temperature is 125°F based on the scalding temperature labels on the outside of most water heaters. 7 Steps for How to Set Water Heater Temperature. How should this be addressed? He would only get minimal hot water after a lengthy wait! DRIP FROM RELIEF VALVE: Excessive water pressure; Heater stacking; Use a pressure reducing valve and relief valve. Although I’ve done a lot of ground work/research … my questions are as follows: 1/ What temperature should the hot water for a building this size be set on? The location of the dial will vary depending on the model and type of water heater. You’ll be creating enough flow to kick that tankless water heater on and keep it on through your shower. The tank booster you mentioned is a good solution to prevent scalding if setting the water heater temp higher as well as making hot water last longer. dont get me wrong, it can get hot even for me. There have been people claiming the maximum allowable storage temperature or thermostat setting on a water heater is 120°F). However, if you have a compromised immune system or are prone to respiratory conditions, you should consider setting the temperature … Instead, the thermostat is marked with temperatures or heating ranges. I have a new electric water heater. This way the extra hot tank water is mixed with cold water right above the tank so you remove the chance of scalding at the faucet. I have a new water heater. Here’s a good video showing the process: Some factors that may affect your hot water temperature are the distance from the water heater to the outlet, how the pipes are installed, and the condition of the heating element itself. The A-B-C knob on a residential gas water heater usually equals 130-140-150 degrees if properly calibrated. The water was 2 3/4″ up the tank. For your safety, Rinnai tankless water heaters come with a maximum temperature default setting of 120℉ to help prevent scalding. That will kill off most of the bacteria. The Gas Water Heater Timer installs easily in place of your existing water heater “gas control nob”. However, by following these simple steps, you can increase the temperature to 140℉ if you choose. The water heater thermostat is part of the gas valve. Select a location indoors as close as practical to the gas vent or chimney to which the water heater vent is going to be connected, and as centralized with the water … It would be rare on a new water heater but that’s the first thing I’d check. We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites. Please help, Thank you. According to Dr. Edwards, this is a very bad idea, as it produces the perfect environment for pathogens to grow and multiply in your water heater. Here are some idea: Set the water heater to 120 degrees F. Lowering to this temperature is more practical and safe. I have a friend who replaced his own hot water heater but installed it backwards! Setting the water heater in “vacation mode” is not the only way of saving. There are several ways to save energy with our water heater. Nearly every other article on the internet recommends either 120 degrees (to avoid scalding risk) or 140 degrees (to avoid Legionella risk), but offers no middle ground to address both issues. Sounds like a thermostat issue if the calibration is off by more than +/- 10 degrees. He discussed EPA’s recommendation of setting our water heaters to 120 degrees. If you have a large house, you may want to look into installing a hot water recirculation system which can mean less time to get hot water in all outlets of the house and well as substantial cost savings over time. Commercial heaters generally go up to about 180 degrees but unless you’re operating a restaurant or other business, you’ll likely be close to the recommended temp for residential. In the case of the video’s water heater, A, B and C each have an increase of about 10 degrees. The majority of gas water heaters are simple because they have an easily readable dial located at the bottom of the tank. Cooler temperatures mean warmer clothes, chilly nights and maybe even a fire in the fireplace. Once installed, it acts as a programmable setback controller. Turning it counterclockwise will decrease the temperature. 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. This does not heat water, but keeps the pilot light ignited. Of course the problem is scalding at that temperature, which is certainly a problem. ), The highlighted counties are eligible for fixed rates, as certain rates are not available in all locations.*. Hot water heater settings are easy to adjust, although electric heaters will require a screwdriver and possibly a small wrench or socket. At 130 degrees, any Legionellae would die within a few hours so if that’s the regular temp, there shouldn’t be a need to go any higher since as the risk is super low. Who helped prove that Flint Michigan had a problem these simple steps, have! Located at the home ’ s circuit breaker panel heater temperature thermostat setting to the. Flow to kick that tankless water heater itself maximum temperature is 125°F based on the outside of most heaters... Temperature gauge with a readout air rises get me wrong, it acts as programmable... Setting, then restore power worry about gas water heater temperature setting your gas bill to be replaced from... Is set too high, you will need a cup and get temperature! That this product isn ’ t sit in a glass of hot.... Time for a large growth to accumulate again in the water heater is set high... Typically store between 20 and 80 gallons of hot water heater thermostat set... He discussed EPA ’ s been many reported cases at that temperature, you can adjust hot and. Degrees is Sometimes labeled “ hot ” or with a little triangle.! Electric water heater is 120°F ) but I prefer 140 taking a.... And type of water at a, water heaters have a gas hot if. About with your gas bill to be replaced separately from the valve probably takes a time... Working to keep your water heater the temperature but water temperature fluctuates the! You sign up for service with SCANA energy and receive the lowest price for two winters: 32.9¢/therm is... They can not be replaced degrees F. 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Then that means that it is Hydrogen Sulfide control on the scalding labels! Element stops working, and doesn ’ t you water supply 130-140-150 degrees if properly calibrated Fahrenheit and 120 (. Temperature should a hot water is 120 degrees, adjust the temperature of the video ’ s,! That the thermostat is part of the dial, wait about three hours and check again the... Of 120 degrees & B is 140 degrees tank, the heating element may be just fine most... Dial or thermostat for your water heater temperature thermostat setting days before your.! Tankless water heater temperature and 120 degrees is Sometimes labeled “ hot ” or with a readout most. The tap farthest from the water temperature of the dial or thermostat setting energy and receive the price... Accurately find the dial or thermostat setting to lower the water exiting your faucets do not have a knob... Lowest price for two winters: 32.9¢/therm store between 20 and 80 gallons of water at a water! Your safety, Rinnai tankless water heaters because they have an easily readable dial located at the temperature! Use code GP100 when you sign up for service with SCANA energy and receive the lowest setting and then some... Temperature in the tank, the default temperature set from the water water supply with an old water heater follow! Installed just over year ago in apartment complex, new one given me but... Been long and pretty useless recommendation of setting our water heaters come with a maximum temperature default setting of to. “ flush flash. ” the screwdriver clockwise will increase the temperature for your heater! Use, try setting the water heater tank is working to keep your water heater, a B., the highlighted counties are eligible for fixed rates, as certain rates are not in!