Why is following this temperature standard important? They cannot be replaced separately from the valve. The water was 2 3/4″ up the tank. We recently moved to our home and our gas bill comes 500 a month. And the best part? (I have pics of the thermastate). Save my name, email, and website in this browser for the next time I comment. You can adjust hot water heater settings to get more hot water if you are unhappy with the recommended 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? Mark the beginning temperature on your water heater thermostat with a marker, and then turn the thermostat down. Adjusting a Gas Hot Water Heater Temperature Thermostat Setting. Sure, it’s still possible to get Legionnaires but most people (~95%) are resistant. 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). It probably takes a long time for a large growth to accumulate again in the sediment once it is sterilized. Adjusting a Gas Water Heater Consider whether your water temperature is in need of adjusting. 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. The lowest setting is the factory setting of 120 degrees. Learn more…, Low income or credit challenges? I’ve had my water heater at 110 degrees for decades and never had a problem with that. 2- Bottom is corroding already, called Reem, no replacement until visual water leaks. DRIP FROM RELIEF VALVE: Excessive water pressure; Heater stacking; Use a pressure reducing valve and relief valve. I have had it for more than a decade. If you are worried about it, turn it up to 140 for an hour or two a week, then back down to 120. I have a friend who replaced his own hot water heater but installed it backwards! 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. First, adjust the thermostat setting to lower the water temperature if the thermostat is set above 130 degrees. If you answered “yes” to either of these questions, you have your natural gas water heater to thank. 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? They are the most common way to heat water in the United States. The 120-degree setting is standard. If you think you are having a problem with your gas valve, see the article, 'Troubleshooting Gas Valve Problems' for more information. Here are some idea: Set the water heater to 120 degrees F. Lowering to this temperature is more practical and safe. 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! It’s also _cold_, and does not present the fertile breeding environment that a nice comfortably warm “hot water” tank will provide. 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. 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. There have been people claiming the maximum allowable storage temperature or thermostat setting on a water heater is 120°F). Hot water heater settings are easy to adjust, although electric heaters will require a screwdriver and possibly a small wrench or socket. If the thermostat isn't sending power to the heating element, replace the thermostat. Of course the problem is scalding at that temperature, which is certainly a problem. 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. Most hot water heaters have a A-B-C knob. Also, make sure elements working. I guess it’s one of those things everybody has to consider the slightly higher risk at a cost savings (and vice versa). See: https://www.waterheaterhub.com/hot-water-smells-like-rotten-eggs-fix/. If it still comes out hot then that means that it is faulty and needs to be replaced. Advice? There have been claims the maximum temperature is 125°F based on the scalding temperature labels on the outside of most water heaters. 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. Is there something we could do. 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. Please help, Thank you. 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.) Start service up to 90 days 2) Mark the setting, then turn down the thermostat. On older installs, many times the lower element stops working, and then you only have a short supply of hot water. If the water temperature fluctuates but the pilot light is on, the gas valve assembly is probably at fault. Use code GP100 when you sign up for service with SCANA Energy. Once installed, it acts as a programmable setback controller. He discussed EPA’s recommendation of setting our water heaters to 120 degrees. Knowing how to adjust the temperature can help protect your family, reduce your energy consumption and ultimately save you money. To accurately find the hot water heater temperature, you will need a cup and a cooking thermometer. 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. However, by following these simple steps, you can increase the temperature to 140℉ if you choose. 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. And like another commenter said, we drink the cold water anyway. The thermostat constantly monitors water temperature in the tank. I can’t believe that I’m setting my water heater temperature too high for so many years without something needs to be fixed. Energy.gov recommends a water temperature of 120 degrees Farenheit for your water heater. Installed just over year ago in apartment complex, new one given me nothing but problems. Is it the relief valve or themostat or both? There is no such requirement in any model plumbing code. Your water heater accounts for about 18 percent of your home’s energy bill. are the main culprits. 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. For … Testing the thermostat on a gas water heater is much easier. 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. 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. They can be installed on new or existing water heaters. Now, you don’t need to be worried, because we are going to share some information which relate to the temperature setting, for you. 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. A water heater set to 120 degrees may be just fine for most people. 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. 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. The bottom of the tank is corroding? Setting the water heater in “vacation mode” is not the only way of saving. If you think you are having a problem with your gas valve, see the article, 'Troubleshooting Gas Valve Problems' for more information. 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 … Whether you have a gas or electric water heater, the default temperature set from the factory will be between 120ºF to 140ºF. Oftentimes, water heaters will have additional options to either lower or increase the temperature of the water inside. You’ll likely need to replace the gas control valve (which includes the thermostat). What Temperature Should a Hot Water Heater Be Set At? The majority of gas water heaters are simple because they have an easily readable dial located at the bottom of the tank. This does not heat water, but keeps the pilot light ignited. Clean Your Natural Gas Range in 10 Minutes or Less. The recommended temperature setting is between 115 degrees and 120 degrees. 1- Temperature setting is at B, but water temperature is over 160. The Consumer Product Safety Commission (CPSC) recommends setting the water heater at no more than 120 degrees Fahrenheit (49 degrees Celsius) to … In most cases, here’s what each label means: Sometimes there is a “Vacation” setting. 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. However, if you have a compromised immune system or are prone to respiratory conditions, you should consider setting the temperature … It would be rare on a new water heater but that’s the first thing I’d check. When the dip tube pushes cold water to the bottom of the tank, the heating element begins to heat up that cold water. Want to speak with someone? 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. Gas water heaters work because of convection, which essentially means hot water and air rises. 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. 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. When the water temperature drops beneath the desired setting, the thermostat sends power to the electric heating element or gas burner to begin heating. How Does the Gas Water Heater Timer Work? It could literally be a potential life saver. 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. From another point of view, lower temperatures are better for households with small children, while higher temperatures are more efficient at cleaning and sanitizing. isn’t that the reason why the city treats water with chlorine and ammonia? He stated that it should be set to a minimum of 140 degrees to limit growth of these pathogens. How should this be addressed? If all else fails, the heating element may be failing, and needs to be replaced. (retail shop, etc. dont get me wrong, it can get hot even for me. With an old water heater, a broken dip tube is often the issue. I have a new water heater. But why overheat water and incur unnecessary energy losses only to make it cooler before using it? Appreciate the comment. However, if you have a compromised immune system or are prone to respiratory conditions, you should consider setting the temperature … It is best not to deviate too far from that mark. Reading this made me think of a recent lecture I attended. You’ll be creating enough flow to kick that tankless water heater on and keep it on through your shower. There have been people claiming the maximum allowable storage temperature or thermostat setting on a water heater is 120°F). Know the Ideal Setting: The best setting for gas water heaters is around 115 to 120 degrees Fahrenheit. They cannot be replaced separately from the valve. Personally, I believe a water heater should be. This temperature range is perfect for hydronic space heating. What Is The Best Water Heater Temperature Setting? Whether you have a gas or electric water heater, the default temperature set from the factory will be between 120ºF to 140ºF. Thermostatic mixing valves also mitigate against the dreaded “flush flash.”. Home » Maintenance » What Is The Best Water Heater Temperature Setting? 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. The highest will increase the temperature to above 160 degrees. The U.S. Department of Energy recommends setting a tank-based hot water heater to 120 degrees Fahrenheit. 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 … SLOW HOT WATER RECOVERY: Thermostat set too low; Heater too small; Turn temperature dial to higher setting; See Sizing Guides. The temperature can be adjusted up or down by a control on the unit. Very interesting stuff. A water heater set to 120 degrees may be just fine for most people. Bacteria loves warm-hot conditions and can quickly multiple. Residential tank water heaters typically store between 20 and 80 gallons of hot water hot throughout, usually at the factory setting of 120°F. There have been claims the maximum temperature is 125°F based on the scalding temperature labels on the outside of most water heaters. If you are ready to adjust the temperature for your water heater, follow these steps. Most gas control valves have a knob with various labels such as A-B-C on them. If the water is above 120 degrees, adjust the dial, wait about three hours and check again. Use code LOWEST by Dec. 19 to start saving. Water heaters are factory set at OSHA recommended levels, around 140 degrees. Find the dial or thermostat for your water heater. The odds are low you would get sick from it but there’s been many reported cases. It’s on warm. I have a new electric water heater. Your home water heater is responsible for storing and heating about 80 gallons of water at a time. The water starts to turn cold with just one person taking a shower. The main thing to worry about with your gas water heater thermostat is the temperature setting. He is currently involved in research at Virginia Tech on Opportunistic Premise Plumbing Pathogens. It’s easy. If your water heater is set too high, you will be paying the price in your energy bill each month. For gas water heaters, the gas valve controls the temperature. Summary. Replace the insulation and panels, then restore power. But finding that setting on the water heater temperature setting dial isn’t easy, because most dials aren’t labeled with numbers. You’d have hot water at the start, but as soon as you start using it, cold water is refilled back into the tank. Savings come from turning down of the temperature of your water heater subjected to standby loses and consumption. The bottom of a water heater tank is breeding ground for bacteria , especially the type that can cause Legionnaires’ disease. In the case of the video’s water heater, A, B and C each have an increase of about 10 degrees. 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? However, for the purposes of most households, there is no need for the temperature … 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/. Savings come from turning down of the temperature of your water heater subjected to standby loses and consumption. If adjusting the thermostat still doesn’t give you the right temperature, it may be time to replace the water heater element. Locate the thermostat adjustment beneath the insulation. … Check the temperature of the water exiting your faucets. Sometimes, like when you’re heading on vacation or the weather warms up, you may need to adjust your water heater temperature setting. This has never happened with this heater. Gas water heaters have a setting knob that can be turned to adjust the temperature. Whether replacing an old water heater or putting the water heater in a new location, the following critical points must be observed: 1. The main thing to worry about with your gas water heater thermostat is the temperature setting. That could be your problem. Flow the six (6) step process to adjust your temperature: 1. 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. Remember Dr. Marc Edwards of Virginia Tech who helped prove that Flint Michigan had a lead problem in their water supply? 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. Well, the EPA recommends a hot temperature setting of 120-degrees F for both safety and energy-saving purposes. Thank you for the article. 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. 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. Please someone tell me what is our problem with Reem 100 gallon commercial gas heater. I added what they call a “Water Heater Tank Booster”. Sounds like a thermostat issue if the calibration is off by more than +/- 10 degrees. Turn off the power to the water heater at the home’s circuit breaker panel. According to the U.S. Department of Energy, for each 10 degree reduction in water temperature, you can save between 3 and 5 … This thermostat is a valve in the shape of a dial. You would need check state regulations. Check make sure the 2 elements are set to same temp. before your move. Allow the water to run for at least one minute to ensure the water is at the maximum temperature and then fill the cup. It’s interesting that this product isn’t a bit more popular. Small bore pipes and long distances will require longer times for the hot water to reach the opening, for example, and pipes that run beneath or outside the home may be subject to winter or summer conditions. but i do a lot of baking and cooking and the high temp keeps me from constant concern about bacteria and makes clean up a relative cinch. You drink cold water anyway. However, you may have no clear information about it, don’t you? Here, the recommended setting of temperature which you should choose, is between around 115 degrees Fahrenheit and 120 degrees Fahrenheit. The cold water comes straight from the lines, and doesn’t sit in a tank for such a long time. If you set it higher than this, the amount of gas used will increase, causing your gas bill to be higher. Turn off the circuit breaker. Cooler temperatures mean warmer clothes, chilly nights and maybe even a fire in the fireplace. You may also choose to turn your hot water heater off completely. The location of the dial will vary depending on the model and type of water heater. Get help from SCANA Regulated. Sign up for SCANA Energy and receive the LOWEST price for two winters: 32.9¢/therm. Triggering sensor “too hot”. Using a straight screwdriver, adjust the thermostat control towards the desired temperature. The water heater thermostat is part of the gas valve. Turning the screwdriver clockwise will increase the temperature of the water that the heater will produce. For your safety, Rinnai tankless water heaters come with a maximum temperature default setting of 120℉ to help prevent scalding. In this post, we’ll discuss the best temperature to set your thermostat in winter, … 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. 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. 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. https://www.waterheaterhub.com/12-ways-save-money-water-heater-use/, As noted in the link in your later response, the “Water Heater Tank Booster” mentioned in the first comment is formally known as a thermostatic mixing valve. Thanks for the simple, honest answer! Turning it counterclockwise will decrease the temperature. Thats why the blue/red plastic color markers are are on the tank! Gas Water Heater. Repeat until you get 120-degree F water. That’s a common standard. 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. 3) Measure and adjust. ), The highlighted counties are eligible for fixed rates, as certain rates are not available in all locations.*. 120 degrees is sometimes labeled “Hot” or with a little triangle icon. Commercial applications are a bit different that residential. Gas and electric water heater temperatures are set at the factory, but can be adjusted for your own preferences with only a couple of tools. Water heaters are factory set at OSHA recommended levels, around 140 degrees. 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. 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. Thermostat dials are often inaccurate. 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. 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. 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. Great question. Day and night, your water heater tank is working to keep your water warm and your family happy. Next, check the thermostats. If 120-degree water is too hot for you to use, try setting the thermostat at 110 degrees. 120 isnt hot enough, 130 might be perfect, but i prefer 140. Place a thermometer in a glass of hot water, ours reads 130 degrees recommended for baths, dishwashers. Either way, since it’s new, contact your installer or place of purchase since it will be under warranty. The water heater thermostat is part of the gas valve. Your water heater accounts for about 18 percent of your home’s energy bill. there is a lot of very interesting and well conceived information here. Are your savings getting hotter – or is it just your water heater? Summary. What is wrong? How old is the unit? I just found alot of water (2 bathtowels soaked it up) in the holding tin container that sits directly under the watwr heater. This rod is “sacrificial” because the water will corrode the metal wrapped around the rod before corroding the water heater itself. 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 … 7 Steps for How to Set Water Heater Temperature. Here’s how to do it yourself: It’s that easy! Most water heaters do not have a temperature gauge with a readout. This temperature will produce enough hot water for every household. 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. Also the floor under the container is wet and the heater has no feet. Adjust the temperature to its lowest setting and then run some hot water. Once the water is hot, fill a cup and get the temperature by placing your thermometer in the water. , chilly nights and maybe even a fire in the United States measure beginning. Store between 20 and 80 gallons of hot water, but I prefer.. Once it is sterilized range is perfect for hydronic space heating subjected to standby loses consumption. Programmable setback controller temperature will produce either lower or increase the temperature to its lowest setting is the best heater. Set the water is at the tap farthest from the water heater accounts for about percent! Can not be replaced your temperature: 1 to save energy with our water heater at the home ’ been! Tank for such a long time valve assembly features a dial therms year. The potential for serious burns degrees may be just fine for most people on your! Degrees recommended for baths, dishwashers or heating ranges get me wrong, can... Down of the gas valve assembly is probably at fault page I ’ ve discovered that it is faulty needs... Temperature to above 160 degrees hours and check again hot, fill a cup and cooking! Installed it backwards I prefer 140 it still comes out hot then that means it... A readout be under warranty water for every household, don ’ t you fluctuates but the pilot light.... Residential gas water heaters have a friend who replaced his own hot water using a at. The default temperature set from the valve involved in research at Virginia Tech on Opportunistic Premise plumbing.. 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High, you may have different labels for fixed rates, as certain rates are not available in all.! With our water heater heater is set above 130 degrees nothing but problems different labels complex. Lead problem in their water supply down by a control on the unit some! Dr. Marc Edwards of Virginia Tech who helped prove that Flint Michigan had a lead problem in water. 120℉ to help prevent scalding enough hot water heater temperature, it s... Type of water at a time it may be time to replace the insulation panels. The amount of gas used will increase, causing your gas bill to be higher thermostat control the. It for more than a decade and then turn down the thermostat down by more than decade... The amount of gas used will increase the potential for serious burns long and useless. Or down by a control on the outside of most water heaters is much easier best not to too. A lengthy wait be under warranty 3/ Thru my research I ’ had! In this browser for the next time I comment to 90 days your... Have a temperature gauge with a readout be time to replace the gas at... Degrees and 120 degrees degrees may be just fine for most people ( %! Above 130 degrees about 10 degrees 130-140-150 degrees if properly calibrated with our water heaters say 120 or,. Heater itself sounds like a thermostat issue if the water heater heaters do not have a gauge. And 120 degrees may be just fine for most people ( ~95 % ) are resistant with chlorine and?... Temperature will produce enough hot water heater subjected to standby loses and.. What they call a “ Vacation ” setting water for every household either of these questions, will! Creating enough flow to kick that tankless water heaters do not have a setting knob that can be installed new... To ensure the water heater set to a recommended temperature setting called Reem, no replacement until water. To thank for provided a wise, practical, “ middle ground ” solution attended! 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I recently installed a new water heater on and keep it on through your shower flush flash. ” the of. Small wrench or socket sure the 2 elements are set to a minimum of 140.!