What Temperature Should Hot Water Heater Be Set To?

What’s the Ideal Temperature for a Hot Water Heater?

The level of comfort is a matter of personal taste.The temperature that one person considers cozy may be too warm or too cold for another person to be comfortable.That is why arguments over the thermostat at home or at the workplace are so prevalent.

  • When it comes to the temperature of your water heater, the situation is a little more tricky to navigate.
  • According to the United States Department of Energy, water heating accounts for around 18 percent of total energy use in a residence.
  • That is a significant amount.
  • Considering that every 10 degrees you lower the temperature of your hot water tank, you save 3-5 percent on your energy bill, it might be difficult to determine what temperature is the most comfortable for you while still being the most economical.

The recommended hot water temperature

The Environmental Protection Agency provides us with a suitable starting point for setting our hot water tanks: 120 degrees.When the tank is not in use, this temperature is the bare minimum for killing off germs that might form in the tank.It can also help to avoid scorching, which is crucial in families with small children or older people.

  • This setting should be able to provide adequate hot water for the average family while still being energy efficient.

When to adjust your water temperature

  • The 120-degree setting is a good starting point for most people. There are a variety of variables or scenarios that may necessitate the use of a different temperature setting. Here are a few illustrations: If you or someone in your household has a weakened immune system or respiratory condition, turn your water heater up to 140 degrees Fahrenheit.
  • With a bigger household, you may need to boost the temperature to ensure that there is enough hot water for everyone’s consumption
  • To ensure that dishes are properly sterilized, if your dishwasher does not pre-heat the water (which is generally the case only with older models), turn on your water heater to 140 degrees.

How to change the temperature on your water heater

  • If you have an electric hot water heater, you’ll need to remove the access panel and adjust the thermostat dial with a screwdriver after removing the access panel. Before performing any maintenance on your water heater, cut off the electricity to the device for your own safety. If you have a gas water heater, the temperature gauge does not contain numbers
  • instead, it is labeled ″Hot″ and ″Warm,″ with a few lines between the two designations. The warm setting should be between 90 and 110 degrees Fahrenheit, and the hot setting should be between 140 and 150 degrees Fahrenheit. You’ll want to be somewhere in the middle of the range if you’re trying to set it at 120 degrees. Pour hot water into a glass and use a culinary thermometer to check the temperature. To get it exactly right, run hot water from the faucet for a few minutes, fill the glass, and test the temperature again. Continue to adjust the temperature until you achieve the desired result. It is critical for your household to have the appropriate amount of hot water. Saving money on energy expenditures is also important. Consult with a water heater professional from Reichelt Plumbing if you need assistance in one – or both – of those areas. We can walk you through the pros and cons of both tank and tankless water heaters. Call us at (219) 322-4906 right now. The date has been set for April 30, 2020
  • the category is Water Heaters

What Temperature Should I Set My Water Heater At?

11th of March, 2020 Get in Touch With Us

Setting the Ideal Hot Water Heater Temperature

Are you tired of burning your hands every time you turn on the hot water in the shower?What if you’re having trouble getting a comfortable water temperature, no matter how high you turn the faucet up?These are not always indications that your water heater is malfunctioning, but rather that the temperature setting you have chosen is not optimal for your purposes.

  • A water heater that has been installed incorrectly can have a significant influence on your life, even in areas that are not directly linked to your plumbing or heating system.
  • In the case of a water heater, which consumes around 18 percent of the energy in your house, changing it by just 10 degrees can result in a three to five percent reduction in your monthly energy bill.
  • It can also have a negative influence on your health or the health of people who share your home with you.
  • How do you set your thermostat when there is so much riding on the outcome?
  • A definitive or simple response cannot be given; rather, part of it is a matter of personal choice.
  • But there are a few guidelines you may follow to ensure that your temperature setting is optimal for you.

General Recommended Water Heater Temperature

You can find out what temperature water should be at by visiting the Environmental Protection Agency.The optimum temperature is 120 degrees Fahrenheit.You will really save money because your water will not be hot enough to cause scalding, most small households will have adequate hot water for their needs, and reheating will not need an excessive amount of energy consumption, allowing you to save money on your utility bills.

  • This temperature, on the other hand, is not ideal for everyone.
  • Some homes will require it to be even hotter than this for a variety of reasons that we shall address shortly, but exercise caution when exceeding this temperature threshold.

Considerations When Choosing a Water Heater Temperature Setting

Do you have any at-risk individuals residing in your home?Those who are particularly sensitive to high temperatures may suffer serious consequences if they are exposed to overly hot water.It only takes two seconds of exposure to water at 150 degrees Fahrenheit to create third-degree burns in small neonates, and only five seconds at 140 degrees to cause third-degree burns.

  • Temperature reduction is more safer for your infant and far more cost-effective in terms of energy use.
  • A water heater set at no more than 130 degrees is recommended if you have a baby or any youngster under the age of three in your household.
  • Elderly homeowners should follow the same guidelines and laws as everyone else, because they are also at risk of burning quickly and suffering potentially painful injuries if they are accidentally exposed to too hot water.
  • Those who have compromised immune systems or who suffer from respiratory ailments, on the other hand, may benefit from a hotter water temperature in order to destroy bacteria while also increasing the concentration of steam in the air when bathing.
  • When dealing with these people, and assuming there are no smaller children around, we recommend keeping the water temperature no higher than 140 degrees.
  • Do you have an appliance that is energy efficient?
  1. Dishwashers that pre-heat are becoming increasingly common.
  2. Essentially, these systems take in water and then raise the temperature to even higher levels to provide an even better and more hygienic clean, all without the need for you to raise the temperature coming from your water heater.
  3. When it comes time to update or replace your dishwasher, we strongly advise you to search for one that has a pre-heat system built into it.
  4. If, on the other hand, it won’t be for a long time, you may wish to raise the temperature of your water heater to 140 degrees.
  5. It is possible to maintain the water nice and hot for your dishwasher while still keeping it safe to use for the majority of your family members if you use enough cold water to compensate for the hot water.
  6. How many people do you have living in your house?
  • While everyone has their own temperature preferences while bathing, you can typically fine-tune them with the hot and cold water knobs on the shower head.
  • Those who like a hotter shower increase the ratio of hot to cold water in their shower.
  • Showers that are chilly to the touch are preferred by those who prefer them that way.

The temperature of the water that comes out of your water heater, on the other hand, will have an impact on this as well.The hotter the water that comes out of your heater, the less hot water individuals will require, and the more cold water they will need, to attain their preferred temperature.People that use cooler water heaters will require more hot water and less cold water in order to achieve their goals.As a result, people who adjust their water temperature to a lower setting will find themselves running out of hot water more quickly.

If you have a large home with multiple people living in it, you should raise the temperature of the water to ensure that your hot water supply lasts as long as possible.Smaller homes with fewer occupants may get away with setting the thermostat lower since they are less likely to run out of heat in the first place.Do you require assistance with your water heater in the Los Angeles area?The specialists at Moe Plumbing Services can help you with everything from thermostat replacement to new water heater installation.Call (818) 396-8002 today to schedule an appointment.

More on Water Heaters:

  • Six Common Problems with Your Home Water Heater
  • What Every Homeowner Should Know About Water Heater Maintenance
  • Six Common Problems with Your Home Water Heater

What Temperature Should a Hot Water Heater Be Set at?

What temperature should a hot water heater be set at?Do you have the same question as many other people?Setting the water heater to the proper temperature is critical for providing not just more pleasurable showers, but also longer showers.

  • It also protects individuals from contracting infections.
  • This page provides answers to your most often asked questions about the optimal hot water temperature.
  • We’ll also go through some of the considerations you should keep in mind while adjusting the heater’s thermostat.
  • Let’s get this party started.

What is the Ideal Temperature Setting of a Water Heater?

There are two schools of thinking that can throw light on the topic of what temperature should be set for a water heater.Water heater manufacturers set the temperature of their water heaters to 140 degrees Fahrenheit by default, believing that the temperature is more calming and pleasant for the majority of people.According to the Occupational Safety and Health Administration, this water heater setting should be used to prevent the growth and multiplication of Legionella and other dangerous germs in water heaters.

  • According to the Mayo Clinic, Legionella bacteria may be found in both water and soil as non-infectious agents that do not cause disease.
  • In contrast, when these bacteria multiply in water systems, such as those found in air conditioning units and household plumbing, they have the potential to become harmful.
  • People become infected with Legionella bacteria when they inhale water droplets containing the bacteria when showering or utilizing whirlpools, hot tubs, water heaters, or hot water tanks.
  • Alternatively, the United States Department of Energy and the Environmental Protection Agency have determined that the optimal water temperature is 120 degrees Fahrenheit (or below).
  • Medical and healthcare professionals have also chimed in on the controversy, advising that the hot water heater temperature setting should not be lower than 120 degrees Fahrenheit in order to avoid microbial development in the water heater.
  • The position of the Consumer Product Safety Commission, which recommends a maximum water temperature of 120 degrees Fahrenheit for safety reasons, further complicates the situation.
  1. According to the organization, hot water (over 120 degrees Fahrenheit) might induce burn injuries in persons who are vulnerable to them.
  2. The recommended temperature of 120 degrees Fahrenheit is likely to be appropriate for most people’s households.
  3. Unfortunately, no two families or homes are comparable in their characteristics.
  4. As a result, it would be wise to analyze the role that various components play in the overall equation.

What Factors Should You Consider When Setting the Water Heater’s Thermostat?

People have varying opinions on what temperature hot water should be at the optimal time of day. It’s possible that I favor 120 degrees, while you or other individuals could prefer 130 or 140 degrees. Regardless of the sort of water heater you have, it is recommended that you take the following aspects into consideration.


In accordance with the American Burn Association, children under the age of 16 account for 26 percent of all admissions to burn treatment facilities.According to the organization, younger children are more susceptible to scorching injuries because of their weak cognitive and physical abilities, as well as a lack of parental supervision when using hot water, among other factors.Young children also lack the ability to perform self-rescue maneuvers.

  • Because of pre-existing medical issues, slower response time, and decreased mobility, the elderly are particularly vulnerable to hot water-related burn injuries.
  • In addition, as compared to other age groups, both children and the elderly have smaller skin layer thicknesses.
  • Even when exposed to hot water for a short period of time or when the water temperature is modest, they might sustain severe burn damage.
  • According to the American Burn Association, three seconds of exposure to 140-degree Fahrenheit water is all it takes to create major burn injuries that necessitates surgical intervention.
  • Because of this, you could believe that a hot water heater setting of 140 degrees Fahrenheit is safe for you.
  • You must, however, lower the temperature in your home to 120 degrees Fahrenheit if you have children or elderly members of your household.

Immune System Functioning

We require a properly functional immune system in order to defend ourselves against infections.Whenever an organism infiltrates our body, the immune system mobilizes an army of defense cells to combat the invasion.Because immune-compromised individuals no longer have a powerful defense army in their bodies, they are more susceptible to infection than the general population.

  • Increased water temperatures may be required to destroy germs in those who have lowered immune system capabilities.
  • People who use immunosuppressive drugs are unable to protect themselves against infections.
  • In addition to corticosteroids, monoclonal antibodies and biologics, and calcineurin inhibitors are examples of immunosuppressive medications.
  • People suffering from HIV/AIDS, psoriasis, Crohn’s disease, rheumatoid arthritis, and lupus are all affected in the same way.
  • Patients undergoing organ transplant procedures also have compromised immune systems, which makes them more susceptible to infection than the general population.
  • In houses with immunocompromised individuals, 140 degrees Fahrenheit is the best temperature for domestic hot water to be provided.
  1. While certain bacteria are thermophilic or heat-resistant, the vast majority of them cannot endure temperatures beyond 140 degrees Fahrenheit.
  2. Even the deadly Legionella bacteria will perish at 122 degrees Fahrenheit (50 degrees Celsius).
  3. Unfortunately, certain heat-resistant viruses must be inactivated at temperatures greater than 140 degrees Fahrenheit in order to be killed.
  4. Families with immunocompromised individuals should adjust the water heater temperature to 140 degrees Fahrenheit, regardless of the reason.
See also:  How Do You Flush A Water Heater

Energy Consumption

According to the United States Department of Energy, adjusting the water heater to 120 degrees Fahrenheit can result in yearly energy savings ranging from 4 percent to 22 percent.It is estimated that the savings will come from lower demand losses (at least $400 per year) as well as lower standby losses (between $36 and $61 per year).When it comes to your water heater, if you are concerned about your power costs, you may want to keep the temperature no higher than 120 degrees Fahrenheit.

  • Naturally, if money is not an issue, you may always raise the temperature to 140 degrees Fahrenheit on a regular basis.
  • Once again, I strongly advise you to take into account the age and immunological health of your family members while determining the optimal water heater setting.

Water Appliances’ Energy-efficiency

The ″water preheat″ function on some dishwashers does not allow customers to adjust the temperature of the water heater’s thermostat setting to a more comfortable level. Those who own such a dishwasher are compelled to set the water heater to 140 degrees Fahrenheit as a matter of necessity.


  • When it comes to the topic ″what temperature should a hot water heater be set at,″ you have two options. Turn down the temperature of your water heater to 120 degrees Fahrenheit if you want to save money on electricity or if you have elderly or young children in the house.
  • If you have members of your household who are immunocompromised or if you don’t mind spending a huge power bill, set the water heater’s temperature to 140 degrees Fahrenheit or higher. If you have a dishwasher that does not have a preheat feature, you may additionally require this option.

Understanding the numerous elements that influence hot water temperature is essential to determining the optimal temperature.

What’s The Best Water Heater Temperature Setting?

  • A hot shower may receive a bad name from your dermatologist since it might dry up your skin, but many people like it for its relaxing properties! In a household where hot water is fiercely competed for among family members, or even between your washing machine and dishwasher, you may be tempted to raise the temperature of your hot water heater. But at what point does it become too hot? There are differences of opinion between the Department of Energy and the industry. Scalding can occur at temperatures below 120 degrees Fahrenheit, although 140 degrees Fahrenheit is the normal default temperature. Any temperature below 120 degrees Fahrenheit, according to the majority of experts, increases the likelihood that germs from stagnant water, such as the bacterium legionella, which causes Legionnaire’s disease, would form within your water heater. Whatever temperature setting you choose, it’s vital to remember that the kind of pipe used, how the water is heated (gas or electric), and whether your system is tanked or tankless have no effect on the temperature you choose. There are, however, a number of elements to take into consideration when determining your thermostat setting: Stick with 120°F if you have small children and/or the elderly in your house who are prone to third-degree burns in seconds, or if you are a single occupant owing to the decreased demand for hot water in your home.
  • Consider 140°F if you have an immunocompromised individual in your home, a dishwasher that does not pre-heat, or a multi-occupant household owing to the increased need for hot water.

But what about the expenses of energy?We get what you’re saying!Water heaters account for around 14-18 percent of the total energy consumed by a residence on a typical day.

  • Furthermore, it may be tempting to lower the temperature in order to save money.
  • It should be noted that a 10°F decrease in temperature is related with a 3-5 percent reduction in energy use.
  • Legionella, on the other hand, can live at temperatures as high as 122°F.
  • So make sure to strike a balance between your risk tolerance and your energy consumption targets!
  • If you’re still on the fence, play around with it.
  • Many hot water heaters are equipped with a temperature control dial.
  1. If yours does not, run the water for a few minutes and use a thermometer to check the temperature of the water thereafter.
  2. Start with 120°F and gradually increase the temperature in small increments until you get your desired result.
  3. All things considered, it is possible that your house is not as simple as ″simply″ setting a temperature and forgetting about it.
  4. A water tank booster may be an appropriate option in houses where the requirement to maintain a greater hot water temperature for health safety must be balanced with the need to reduce the danger of scorching.
  5. To inhibit pathogens from growing in your tank, it retains the temperature at 140°F while mixing with cold water to provide a lower temperature at the faucet.
  6. Alternatively, you could live in a house where, no matter what temperature you select, hot water takes an inordinate amount of time to reach the faucet (or a certain tap farthest from the hot water heater).
  • A hot water circulating system circulates hot water gently through the pipes so that you are not forced to wait.
  • Whatever you choose, we’re only a phone call away if you’re having issues with your hot water!

What Is The BEST Water Heater Temperature Setting?

Please keep in mind that this content may contain affiliate links.This means that, at no additional cost to you, we may gain a small profit on purchases made via our links.In the event that you have already adjusted the temperature and are complaining to yourself that you ″have no hot water″ or ″don’t have enough hot water,″ there are a few reasons that might be impacting the heat.

  • If all else fails, it’s possible that the heating element is faulty and has to be replaced.

How To Check Your Water Heater Temperature

The majority of water heaters do not have a temperature gauge with a digital readout on them.A temperature or heating range is marked on the thermostat, rather than a number.A cup and a culinary thermometer will be required in order to correctly determine the temperature of the hot water heater.

  • If you haven’t used your water heater in at least one hour, turn on the faucet that is nearest to it.
  • Allow the water to run for at least one minute to ensure that the water is at its warmest possible temperature before filling the cup with it.
  • Insert your cooking thermometer and make any necessary adjustments to the temperature settings.

Recommended Temperature Settings

Water heaters are pre-programmed to operate at temperatures about 140 degrees Fahrenheit, which is recommended by OSHA.The Environmental Protection Agency, on the other hand, recommends lowering the thermostat down to 120 degrees Fahrenheit to save power use and using a booster heater to attain sanitizing temperatures at certain outlets.Another point of view is that lower temperatures are preferable for homes with little children, although higher temperatures are more effective in cleaning and sanitizing surfaces.

  • Recommendation from me Personally, I feel that the temperature of a water heater should be set around 130 degrees in practically all circumstances.
  • However, the temperature is low enough to avoid scorching while being high enough to destroy hazardous microorganisms.

How To Turn Up Your Water Heater

If you are dissatisfied with the suggested temperature of your hot water heater, you may alter the settings to receive extra hot water.Although electric water heaters may require a screwdriver and potentially a tiny wrench or socket, most hot water heater settings are straightforward to modify.Keep in mind that the thermostat is factory configured to a recommended temperature, and that altering the setting may increase the risk of significant burns from the appliance.

How to Set Temperature on a Gas Water Heater

  • The temperature of a gas water heater may be adjusted by turning the setting knob on the water heater. The majority of gas control valves have a knob with different designations on them, such as A-B-C. Control valves for gas water heaters may be labeled differently depending on the manufacturer. In the majority of circumstances, the following is what each label indicates: Temperatures range from 80-90 degrees
  • hot (or triangle sign) = 120 degrees
  • A = 130 degrees
  • B = 140 degrees
  • C = 150 degrees
  • Very Hot = 160 degrees

There is a ″Vacation″ setting that appears from time to time. This does not heat the water, but it does ensure that the pilot light remains lit.

How to Set Temperature on an Electric Water Heater

Turn off the circuit breaker if necessary. Remove the access panels from the room. Under the insulation, look for the thermostat adjustment screwhole. Adjust the thermostat control to the appropriate temperature by using a straight screwdriver to make the adjustment. After replacing the insulation and panels, the power should be restored. Here’s a good video that demonstrates the procedure:

Factors That Affect Water Temperature

Some of the things that may influence the temperature of your hot water include the distance between the water heater and the outlet, the way the pipes are built, and the quality of the heating element itself, among others.Because of the length of the pipe and the small bore size, it will take longer for the hot water to reach the opening.Additionally, pipes that run beneath or outside the residence may be exposed to freezing or freezing temperatures in the winter and summer.

  • If you have a big house, you may want to consider installing a hot water recirculation system, which may reduce the amount of time it takes to send hot water to all of the outlets in the house, as well as provide significant cost savings over time.
  • If setting the thermostat does not result in the desired temperature, it is possible that the water heater element has to be replaced.
  • Alternatively, if you don’t notice a difference in water temperature after changing the thermostat, it’s likely that you have a malfunctioning thermostat that has to be replaced.

What Temperature Should a Hot Water Heater Be Set at?

How many of you are aware of the fact that the common hot water heater temperature setting is typically 140 degrees Fahrenheit?In most cases, water heater manufacturers specify this value as the default value.This temperature level will aid in the prevention of the spread of Legionella bacteria in your household water supply.

  • The question is, at what temperature should a hot water heater be set?
  • Temperatures between 120 and 140 degrees Fahrenheit are recommended for your heater, since these temperatures will eliminate bacteria in your water, according to professionals.
  • Furthermore, the optimal water heater temperature is determined by a variety of parameters, which I will address in greater detail later in this post.

Hot Water Temperature Levels Recommended by Professionals

What temperature should you set your water heater to?A minimum water temperature of 140 degrees Fahrenheit is required for larger residential systems, according to the Occupational Safety and Health Administration (OSHA).Smaller systems, on the other hand, require temperatures of at least 130 degrees Fahrenheit.

  • This setting will produce 120 degrees Fahrenheit faucet or tap water temperature, which is the appropriate temperature for home hot water.
  • The Centers for Disease Control and Prevention (CDC) and the United States Environmental Protection Agency (EPA) have determined that 120 degrees is the maximum acceptable hot water temperature (EPA).
  • A hot water temperature of 120 degrees Fahrenheit is sufficient to keep infections at bay while also allowing for long, steamy showers to be enjoyed.
  • It will also have a positive impact on total energy and power usage.
  • The CPSC (Consumer Product Safety Commission) recommends that customers set their water heater’s thermostat to 120 degrees Fahrenheit to avoid scorching, even though the maximum temperature for most water heaters is 150 degrees Fahrenheit.
  • The skin of youngsters and the elderly is more sensitive to burns when exposed to hot water because their skin is thinner and burns more quickly.
  1. Furthermore, after two seconds of exposure to 150-degree hot water, the majority of children will suffer from a 3rd-degree burn.
  2. At 131 degrees Fahrenheit, a kid can be scalded in less than 4 seconds if the temperature is maintained.
  3. Consequently, children should constantly be monitored to avoid unintentional water burns caused by playing with the faucet temperature settings when they are young.
  4. The majority of scalding burns in children occur as a result of an accident, which is why parents are inclined to lower the temperature of the water heater.
  5. Anything lower than 120°F, on the other hand, will not provide you with an additional layer of protection against the potential multiplication of Legionella and other bacteria in your drinking water.
  6. Although you have the ability to customize the temperature of your water heater to your liking, it is critical to be conscious of your water heater consumption habits in order to safeguard your family from the harmful consequences of improper temperature management.

Factors That Affect Hot Water Heater Setting

There are a variety of things that influence how we set the temperature of our water heating system. The following factors will assist you in determining the optimal heat level:

1. Households With Elderly People and Children

As previously stated, elderly people and children have thinner skin than younger youngsters and are consequently at greater danger of scorching.According to reports, children as young as 4 years old are admitted to hospitals with burn-related ailments, including scald burns and contact burns.In the meanwhile, reports of old or vulnerable persons suffering from burn injuries or infections are extremely rare in the media.

  • However, as a precautionary measure, we must continue to monitor that the water heater’s temperature does not exceed 120 degrees Fahrenheit.
  • Although there is one exception to this rule, it is worth mentioning.
  • For those who have an immunocompromised member of the family, it is recommended that you increase your unit’s temperature to 140 degrees Fahrenheit, as recommended by the Department Of Energy.

2. Household Size

If you live alone, you might expect to have a lower water use.As a result, the vast majority of single inhabitants would most likely adopt a lower temperature to preserve energy.Lowering the temperature of the water heater to 120 degrees Fahrenheit might help you save up to ten percent on your water heating bills.

  • In a typical residential house or apartment, a person can consume 20-35 gallons of water each day.
  • However, because of the increased need for hot water in a big home, a higher hot water temperature may be preferred.
See also:  How To Fix Water Filter In Refrigerator?

3. Pipe Size

What is the impact of the domestic pipeline system on the hot water consumption of your family?Increases in both flow rate and pressure are associated with decreasing internal diameter of the pipe.When using a tiny bore pipe system, it will take a long time for hot water to reach your faucets, as an example.

  • As a result, heat will evaporate throughout the journey.
  • If you have a bigger home or property, you should consider building a hot water recirculating system so that hot water can be delivered to your plumbing system more quickly and efficiently.
  • It also implies that you will no longer be required to operate at a high temperature all of the time, resulting in a significant reduction in energy use.

4. Non-Preheat Dishwasher

The majority of modern dishwashers nowadays are equipped with pre-heating technology, which boosts the temperature of the incoming water before it is used. The water heater should be heated to 140 degrees Fahrenheit if your dishwasher does not warm the water before use. This will provide the appropriate sanitizing temperature.

5. Ambient Outdoor Temperature

The temperature level at which we should set our water heater is heavily influenced by the weather conditions outside our home.It is possible that your hot water production will be affected by the unpredictable weather outdoors.For example, during the winter months, the water that enters your pipes will be cooler than during the summer months.

  • As a result, your heater will have to work more as a result of this.

5 Quick and Easy Energy-saving Tips for Water Heater

1. Lower The Temperature On The Thermostat

We may save anywhere from 12 to 30 dollars each year for every 10 degrees we lower the temperature, according to a Department of Energy research.

2. Reduce Hot Water Usage & Insulate Water Tank

When doing actions that do not necessitate the use of warm water, such as brushing your teeth, it is more effective to switch off the water heater.Additionally, a lack of insulation might result in the consumption of additional energy.If your water heater’s tank is not properly insulated, it will cool more quickly.

  • As a result, it will take a long time for the entering cold water to be converted into hot water, particularly if the weather is very cold.

3. Insulate The Water Heater Pipes

It is necessary to insulate the hot water pipelines in addition to the tank since doing so will assist to decrease standby heat losses and will protect your tank from bursting, which can be caused by freezing conditions. Because you won’t have to switch on your water heater as frequently as you would otherwise, this added protection will help increase the longevity of your water heater.

4. Inspect And Repair Leaky Valves

A leak in a water heater is a common problem that most homeowners have to deal with. The majority of the time, excessive water pressure is the source of the leakage. This is not a problem to be taken lightly, as it has the potential to harm the water heater and waste more than 90 gallons of water every day.

5. Drain Sediment From The Tank

Tank drainage should be performed once every six months since sediment buildups tend to accumulate at the bottom of the tank and increase the heater’s power usage.


‘What temperature should I set my hot water heater to?’ is a question that many people have.I hope you’ve gotten a better grasp of how to correctly manage the temperature of your own water heater as a result of this article.Being aware of when to increase the temperature on your thermostat can help to decrease the risk of scalding and microbiological contamination.

  • Is there anything more you’d want to know about your hot water system?
  • Fill up the blanks with your thoughts in the comment section below.

What Temperature Should a Hot Water Heater Be Set At?

Previous Post Next Post Your water heater accounts for around 18 percent of the total energy consumed by your home.If the temperature of your water heater is set too high, you will be forced to pay the price in your monthly energy bill.The converse is true: if you have your water heater set too low, your water may not get hot enough (resulting in short showers), or worse, it may get contaminated with germs.

  • Maintain a 120-degree temperature for your water heater at all times because infections can form in the stagnant water within the water heater, notably Legionella, which is extremely deadly.
  • How can you determine what temperature range is most appropriate for your water heater?
  • In addition to being hot enough to keep viruses at away while not being scorching hot enough to cause blistering, 120 degrees will provide adequate hot water for most small households while still being relatively energy-efficient, according to the Environmental Protection Agency.
  • However, depending on a few criteria, the most appropriate setting for you may differ.

Factors That Affect Hot Water Temperature Setting

  • These criteria are unaffected by the kind of piping you have (PEX, PVC, or copper), the method of heating the water (gas or electric), or even if you have a tankless hot water heater installed. Owners of dishwashers that do not pre-heat the water may wish to set their water heater temperature to 140 degrees
  • elderly or families with young children may want to keep the temperature at 120 degrees. In the words of BabyCenter.com, ″It takes just two seconds for a kid to acquire third-degree burns from water that is 150 degrees, and five seconds if the water is 140 degrees, the temperatures at which hot water heaters are frequently sent from the factory.″
  • It is recommended that the hot water temperature be maintained at 140 degrees in homes with people who have a compromised immune system or respiratory problems.
  • Because there is less demand for hot water and hence less money spent on hot water, many people who live alone prefer a lower temperature within an acceptable range. When it comes to those who live in big households, many choose a higher temperature in order to handle the increased need for hot water.
  • In order to save money, every 10 degrees you lower the temperature of the water tank thermometer results in a 3 to 5 percent reduction in your energy bill.

Are you still undecided? To begin, set the temperature to 120 degrees Fahrenheit and gradually raise it in small increments until you reach the desired shower temperature.

What’s Your Current Temperature Setting?

Check the temperature setting on the water heater (if one is available) or take a temperature reading from the faucet to determine what it is currently. After turning on the hot water faucet, allow it to run for a few minutes before getting the temperature reading.

Solutions to Common Hot Water Tank Problems

If you’re concerned about pathogens in your hot water, as well as the possibility of scalding water, you might consider installing a hot water tank booster.This allows you to maintain your water at 140 degrees in the tank while mixing it with cold water to bring the temperature down to 120 degrees before it reaches the faucet.Having a hot water circulating system installed in your home might alleviate the problem of waiting for hot water to reach the faucet in a large household.

  • This method circulates hot water slowly through the pipes in order to prevent it from cooling down before it reaches the faucet.

Professional Plumbing Services

It’s possible that your hot water isn’t hot enough no matter what setting your water heater is set to.To get assistance adjusting your hot water heater or troubleshooting any difficulties, call your local Mr.Rooter Plumbing at (855) 982-2028 or submit a request for a free estimate through the website.

  • Not only does your hot water need to be ″just perfect,″ but so does everything else in your home.
  • With assistance from Aire Serv, a Neighborly firm, you can find the ideal air temperature.
  • Previous Previous post: Previous post: Next post:

Setting your water heater’s temperature for best results

Time required for reading: 2 minutes It’s possible that you don’t give your water heater much thought, but it actually plays a very crucial role in the plumbing of your home.In addition to higher power expenses, a malfunctioning water heater might result in water that is either scorching hot or ice cold.It is critical to plan annual maintenance to verify that your device is clean (hard water build-up can be detrimental to your water heater) and that the temperature range is within acceptable parameters.

  • Save money, extend the life of your water heater, and safeguard the health and well-being of you and your family by following these simple guidelines.
  • Set your water heater to the optimal temperature, which is between 130 and 140 degrees Fahrenheit, according to industry professionals.
  • If you go much higher or any lower than this, it might be harmful for you and your family.
  • While increasing the temperature over the suggested setting might result in burns, decreasing the temperature below the recommended level can also be hazardous.
  • Bacteria can grow in the water heater tank when the water is cooler than the ambient temperature.
  • This might become a health danger for you and your family, putting you and your loved ones at risk of contracting diseases such as Legionnaires’ illness.
  1. This condition is a sort of pneumonia, and the bacteria that causes it may grow in a water tank with temperatures ranging between 77 degrees and 113 degrees Fahrenheit, depending on the temperature.
  2. Check the temperature of your water heater.
  3. You should contact a plumber if you are concerned that your water heater is set at an inappropriate temperature — either too high or too low — since they will be able to simply verify the setting with a specific thermometer and make any adjustments that may be necessary.
  4. The presence of sediment accumulation and calcification in the hot water tank itself will also be checked by a professional if the temperature on the water tank has been changed but you are still experiencing the same water temperature as you were before the temperature adjustment.
  5. If you hear hissing or sizzling noises in the tank, this is another indicator that sediment has accumulated.
  6. After draining the tank, a professional can attempt to address the problem by scraping off any scale that may have built up over time and soaking the components in hot water.
  • Water heaters have a rather long life expectancy.
  • The average lifespan of a hot water heater is predicted to be between 8 and 12 years.
  • It is recommended that if you have a water heater that is 10 years or older and looks to be leaking or having some problems operating, that you consider replacing it rather than simply performing a repair that will only temporarily cure the problem.

Water heaters require regular maintenance.Maintaining your water heater on a regular basis, like you would any other equipment, may go a long way toward prolonging the life of your water heater and maintaining it in excellent operating condition.If you want to ensure that your water heater continues to function effectively, you may want to consider hiring a professional to perform this maintenance.Maintaining your water heater’s temperature between the appropriate ranges is essential.

This will prevent any bacteria from growing in the cold water and will protect you from being scalded by a shower that is much hotter than you anticipated.

There’s No Perfect Temperature For Your Water Heater

When it comes to your water heater, what is the ideal temperature setting? There isn’t a single perfect solution. Scald Awareness Task Group of the American Society of Sanitary Engineering has published a white paper on the subject, which essentially states that there is no ideal temperature to set your water heater to.

What’s a safe temperature for water?

Most water heaters have a warning label on the side that states that water temperatures beyond 125 degrees Fahrenheit can cause burns or death.The water that comes out of a home’s plumbing fittings should not be any hotter than 120 degrees Fahrenheit in order to be safe.The helpful illustration below (courtesy of Charles Buell) illustrates how quickly second- and third-degree burns can occur at temperatures that are within the range of any modern water heater’s capability.

  • Simply lowering the temperature of your water heater until it reaches a safe 120 degrees will not be sufficient to eliminate potential scald hazards.
  • This is because the thermostat on a water heater is not designed to maintain a constant temperature; rather, it is designed to maintain a temperature within a specific range of temperatures.
  • Several blogs have been written by Seattle home inspector Charles Buell explaining how this works.
  • One blog describes how water heaters can run out of hot water more quickly than is necessary.
  • Another blog discusses how a water heater produces different temperatures at different stages of its heating cycle.
  • The temperatures in a big home that was heated by two high-efficiency water heaters varied widely, as I discovered recently during a routine check of the property.
  1. After turning on the hot water at a fixture for the first time, the water temperature was chilly at initially; this was due to condensation forming in the hot water pipe, which had cooled the water down to room temperature.
  2. As soon as the hot water from the tank’s top reached the plumbing fittings, the temperature of the water swiftly increased to approximately 154 degrees — hot enough to produce first-degree burns in an instant and second-degree burns in less than one second.
  3. The water only remained at this temperature for a few seconds before rapidly cooling back down to around 135 degrees.
  4. However, even though a tempering valve had been built to mix cold and hot water immediately at the water heater output, it was not adequate to properly regulate how hot or cold the water was when it reached the fixtures.
  5. Minnesota does not have any restrictions for the temperature of household water.
  6. All new or refurbished showers or shower-bath combinations in Minnesota are required to include anti-scald mechanisms, although this does nothing to address the final temperature of the water flowing out of a fixture (4715.1380 Subp.
  • 5).
  • Anti-scald devices are only effective in preventing people from being scalded by a rapid change in temperature when having a bath or shower.
  • The pressure in the cold water line would decrease rapidly if a toilet flushed while someone was having a shower with an outdated shower valve that did not have an anti-scald mechanism.
See also:  When To Change Filter On Zero Water?

As a result, the water temperature in the shower would swiftly rise.

Lower Temperatures Allow Bacteria Growth

It appears as though turning down the temperature of the water heater to, say, 115 degrees would be the best approach to help prevent unintentional scorching, but lower temperatures really cause additional problems.Legionellae bacteria, which is responsible for Legionnaires’ Disease, may live and even proliferate in the water heater tank when the temperature is between 135 and 140 degrees Fahrenheit.It is estimated that up to 600,000 cases of Legionnaires’ Disease are misdiagnosed as pneumonia each year, according to LegionellaPrevention.org, due to the fact that Legionella is not routinely checked in medical settings.

  • The time it takes for Legionellae Bacteria to be killed at various temperatures is depicted in the graphic below.
  • The American Society of Heating, Refrigerating, and Air Conditioning Engineers (ASSE) suggests that you keep the water in your water heater tank between 135 and 140 degrees Fahrenheit to help avoid bacteria development.
  • It goes without saying that this presents a scorching hazard.

So What’s the Answer?

To help minimize bacteria development and reduce the danger of scalding, have a plumber install a tempering valve and raise the temperature of your water heater to roughly 135 – 140 degrees Fahrenheit, as recommended by the American Society of Heating, Refrigeration, and Air Conditioning.The installation of a tempering valve on the hot water outlet at my home last year, which allowed me to get more water out of my water heater, was the subject of a previous blog post.The installation of these valves in every home would be a wise decision.

  • It is possible to maintain a dangerously high, Legionellae-killing temperature within the water heater tank while also mixing in cold water exactly at the outlet, ensuring that you do not get this dangerously high, Legionellae-killing temperature in any other fixtures in your home.
  • Although a tempering valve will not ensure safe water temps, as I noted in my tale about the recent inspection with dangerously hot water, using one will bring you a lot closer to that goal.
  • Structure Tech Home Inspections – Reuben Saltzman – Email – Minnesota Home Inspector

What Is the Safest Water Heater Temperature?

Water heaters are critical to the operation of your household on a daily basis.They make certain that your Vancouver, Washington house has enough water to take hot showers, bathe, and wash dishes with.Bacteria and viruses are also killed by hot water.

  • But at what point does it become too hot?
  • If the temperature of your water heater is too high, you run the danger of being hurt.
  • If the level is too low, germs may begin to develop in the tank.

What Is the Safest water Heater Temperature?

The temperature of a gas or electric water heater is frequently set at 140 degrees by the manufacturer.You may be comfortable with that temperature, but if you aren’t, you may adjust the temperature.For those of you who have a new water heater installed by Simpson Plumbing, we will be pleased to make the necessary adjustments for you.

  • During routine water heater maintenance, we may also adjust the temperature of your water heater.

How to Check the Temperature of Your Water Heater

The majority of water heaters do not feature a gauge that is easy to see.The thermostat, on the other hand, displays temperature or heating ranges.Once you’ve let the water heater to rest for an hour without using it, turn on the faucet that is closest to it.

  • Obtain a cup as well as a cooking thermometer, and fill the cup after allowing the water to run for at least one minute.
  • After that, check the temperature of the water using the thermometer.
  • Make the necessary adjustments.
  • It is possible that you will have to repeat this step several times.

Lowering Your Water Heater Temperature

If you opt to lower the temperature to between 115 and 120 degrees, you will save around 5% on your energy cost each month.Additionally, you’ll reduce the likelihood of your water heater overheating.Increase the efficiency of your water heater by adding an insulated jacket or blanket to the tank of the water heater.

  • If the water temperature is too low, you run the danger of being exposed to germs, which is something you should be aware of.
  • Legionella, the bacteria that may cause Legionnaires’ disease, is a kind of pneumonia that is spread by stagnant water and can be fatal.
  • According to the World Health Organization, Legionella will be eliminated if the temperature of your water heater is 140 degrees or above.
  • In an 80-to-124-minute period at 122 degrees, around 90 percent of Legionella will die, depending on the kind of bacteria.

Raising Your Water Heater Temperature

Maintaining a high temperature within your water heater will result in water that is more effective at cleaning and disinfecting.However, if the tap water is extremely hot, customers run the danger of scorching.Anyone may be burnt by hot water, but youngsters, the elderly, and those with delicate skin are the most at risk of getting burned.

  • It is advised that the water heater temperature be maintained between 120 and 125 degrees for these groups.
  • Keep in mind that your water heater will last for around 10 years at a time.
  • You should consider replacing an older model because it is likely to be less efficient.
  • Water heaters that are newer and more energy efficient are available.
  • It’s possible that you’ll qualify for a special offer or a refund if you decide to replace your outdated water heating system.
  • Simpson Plumbing specializes in the installation of all sorts of new water heaters.
  1. We’ll promptly install your new heater and make certain that the temperature is safe for you and your family to be around.
  2. Contact us immediately and prepare to have a beautiful, new water heater installed.

How Hot Should a Water Heater Be?

The optimum temperature setting for a water heater is an issue that is frequently disputed in the industry.Homeowners who are well-informed understand that heating water – and keeping it at a high temperature – accounts for a significant portion of their household’s energy budget.Some individuals lower the temperature because they are under the clear notion that heating water to lower degrees consumes less energy and, as a consequence, resulting in significant energy savings.

  • Another school of thought holds that hotter water may be combined with bigger quantities of cold water to achieve the appropriate temperature, and that doing so actually saves money because it results in less utilization.
  • Both of these responses are right in their own way, but they are also erroneous in another manner.
  • The reason behind this is as follows.

Hot Water is Dangerous

The majority of people are unaware of how hazardous hot water may be.Any contemporary water heater is capable of producing water that is hot enough to induce first degree burns in less than a second and second degree burns in less than a second.Hot water tanks are even equipped with warning placards that warn that temperatures of 125 degrees Fahrenheit or more can result in burns or death.

  • Despite the warnings, homeowners frequently turn up the temperature of their water heater to unsafe levels.
  • Higher temperatures are OK if the correct safety mechanisms are in place, but most homeowners do so for the wrong reasons and fail to install the essential safety equipment in the process.
  • This white paper was issued in March 2012 by the American Society of Sanitary Engineering’s Scald Awareness Task Group, which is entitled ″Understanding Potential Water Heater Scald Hazards.″ That article was mostly concerned with water heater settings and the common misunderstandings that homeowners have about how to utilize their water heaters.
  • For example, most people believe that setting the water heater thermostat to 120 degrees will result in a continual stream of 120-degree water pouring out of the faucet.
  • This is incorrect.
  • Realistically speaking, such temperature has a significant operational margin.
  1. It may be heated to temperatures as high as 145 degrees Fahrenheit at first, and then let to cool in the tank over time.
  2. Splashing is a significant issue when water heaters are purposefully set at a high temperature to allow for bigger quantities of cold water to mix at the point of usage, which rises considerably when this occurs.
  3. While showering, turning on a cold water faucet in the kitchen or flushing the toilet in a second bathroom might lower the amount of cold water flowing through the shower and cause major burns.
  4. The use of anti-scald devices is intended to prevent this from occurring, although many homes do not have these devices installed.
  5. Tempering valves put at the hot water exit can allow water tanks to run at greater temperatures in a safe manner, although they are not necessary in the majority of communities.

Warm Water is Dangerous

It is possible to be at risk in a different way by keeping water temperatures at 120 degrees or below.Legionella pneumophila, the bacterium that causes Legionnaires disease, is most commonly found in the air conditioning systems of hospitals, office buildings, and cruise ships, among other places.Recently published research, however, have revealed that household hot water systems may be responsible for as much as 20 percent of the cases detected each year.

The ASSE Recommendation

To avoid Legionella bacteria development, the American Society of Sanitary Engineering recommends that hot water tanks be maintained at a temperature between 135 and 140 degrees Fahrenheit, with the installation of anti-scald devices and tempering valves to prevent hot water injuries.When it comes to making adjustments to your water system, only licensed plumbers should be engaged.Providing plumbing services in the Lakewood Ranch, FL area, Custom Air Inc.

  • is now available to install anti-scald devices in your shower or tub, tempering valves at your hot water outlet, replace your hot water tank, or install tankless hot water systems.
  • Contact Custom Air Inc.
  • today to learn more.
  • For further information, please contact us right away!

What Temperature Should a Hot Water Heater be Set At?

Skip to the main content What temperature should a hot water heater be set to in order to provide hot water?However, even though you may not think about your water heater very often, it is a very important part of your home’s plumbing system.It is possible that a faulty water heater will result in increased electricity bills as well as water that is either blazing hot or freezing cold.

  • It is vital to schedule annual maintenance in order to ensure that your unit is clean (hard water build-up is detrimental to your water heater) and that the temperature is set appropriately on the thermostat.
  • Save money, extend the life of your water heater, and protect the health and happiness of you and your family as a result of taking these precautions.
  • Manufacturers and the Department of Energy hold diametrically opposed perspectives.
  • In order to avoid burning, the safest temperature setting is 120 degrees Fahrenheit, even though the common default setting is 140 degrees.
  • The majority of experts feel that any temperature below 120 degrees Fahrenheit increases the likelihood of bacteria, such as legionella, which causes Legionnaire’s disease, developing within your water heater as a result of stagnant water in your water heater.

Optimal Water Heater Temperature

  • Whatever temperature setting you pick, keep in mind that the type of pipe used, how the water is heated (gas or electric), and whether your system is a tank or tankless all have no effect on the final temperature of the system. A variety of variables must be taken into account when determining an appropriate temperature, including: Keep the temperature at 120°F if you have little children and/or the elderly in your home, who are susceptible to third-degree burns in seconds, or if you live alone, because you will have less need for hot water.
  • 140 degrees Fahrenheit should be considered if your home contains an immunocompromised individual, a dishwasher that does not pre-heat, or a large number of people due to a greater need for hot water.

The question is, what is the cost of energy?We recognize your frustration!On average, water heaters account for 14-18 percent of a household’s total energy use.

  • Furthermore, it may be tempting to turn the thermostat down in order to save money on energy costs.
  • It’s worth mentioning that reducing the temperature by 10°F results in a 3-5 percent reduction in energy use.
  • Legionella, on the other hand, is capable of surviving at temperatures as high as 122 degrees Fahrenheit.
  • So make sure to strike a balance between your risk tolerance and your energy consumption targets!
  • If you’re still on the fence, experiment with it a little.
  • A temperature dial is a feature that is typically found on water heaters.
  1. If yours does not, run the water for a few minutes and then check the temperature using a thermometer.
  2. Start with 120°F and progressively raise the temperature until it is to your satisfaction.
  3. Overall, it’s possible that controlling the temperature in your home is more complicated than ″just″ selecting a temperature and forgetting about it.
  4. The installation of a water tank booster may be an appropriate option in families where the necessity to maintain a higher hot water temperature for health safety must be balanced against the danger of scorching.
  5. It maintains a temperature of 140°F in the tank to prevent the growth of bacteria while mixing with cold water to provide a lower temperature at the faucet.
  6. Instead, you can live in a place where hot water takes a long time to reach the faucet, no matter what degree you set it at (or a certain tap farthest from the hot water heater).
  • A hot water circulating system circulates hot water gently through the pipes so that you don’t have to wait for it.
  • No matter which option you pick, we are merely a phone call away if you are suffering hot water problems!

Check the Temperature of Your Water Heater

When you are concerned that the temperature of your water heater is incorrectly set, call a plumber who will be able to quickly and simply verify the setting with a specific thermometer and make the necessary adjustments to your water heater.The presence of sediment build-up and calcification within the hot water tank will be checked by a professional in the event that you have attempted altering the temperature of your water tank but have not observed a difference in the temperature of the water.If you hear sizzling or hissing noises in the tank, this is another indicator that sed

Leave a Reply

Your email address will not be published.