How To Shut Off Gas Water Heater

How to Turn Off Your Water Heater

Whatever the situation, whether you have a water leak, a gas leak, or the pilot light goes out, it’s a good idea to be informed of how to properly switch off your hot water heater. It is critical that the water heater is turned off before commencing any sort of maintenance on it. When there is easy access to the rear settings and the supply pipe, the technique for turning it off is usually straightforward and straightforward. 1. First and foremost, you must find the water heater. The majority of the time, they may be discovered in utility closets or in the garage or attic.

If you have a gas water heater, the first step should be to locate the temperature dial, which is normally located in the bottom of the tank near the front.

The first step in repairing an electric water heater is to locate the circuit breakers in your property.

Make a note of the breaker line that supplies electricity to your heater and turn it off.

  1. Locate the water heater’s piping line, which is normally at or at the top of the unit.
  2. 4.
  3. 5.
  4. Drain the supply by placing the garden hose outdoors or in a bucket.
  5. The next step will be to identify the gas supply line and the valve that controls the gas supply.
  6. To turn off the gas supply, turn the lever in a perpendicular direction or the knob in a clockwise direction.
  7. Find the relief valve, which is often located at or at the top of the water heater.
  8. That’s all there is to it!
  9. On YouTube, there is a video showing how to turn off a water heater.

Turn Off The Gas Supply To The Water Heater

What is the procedure for turning off the gas feed to the water heater? This is a question that we are asked rather regularly by our consumers. It is an excellent question, and one that every homeowner should be familiar with, just in case they experience difficulties with their water heater in the future. It’s possible that you’re smelling gas coming from your water heater, that it’s not operating as expected, or that the water heater is leaking, and it’s a good idea to know how to switch off the gas.

  1. Knowing how to turn off the gas at both ends of the house may be really beneficial.
  2. To locate the gas shut off valve on a water heater, search for a single handle valve that is often positioned at the bottom of the unit, approximately a foot or two out from the unit.
  3. To turn off the gas, crank this valve counter-clockwise until it stops turning.
  4. This is to turn the gas off to the entire home.
  5. The gas meter shut off is positioned exactly next to the gas meter, which may be found on the outside of the home, as seen in the illustration below.
  6. After turning the valve a quarter turn until it is perpendicular to the gas pipe, the gas line is closed and the flow of gas is shut off completely.
  7. In the event of an emergency or if you smell gas, leave the house immediately and call your gas provider.

You can also read our FAQs to learn more about typical water heater problems. John Heaters contributed to this article. Facebook|Google+|Twitter

How to Turn Off a Gas Water Heater

When going away for a lengthy amount of time, it is usually a good idea to turn off your gas water heater to avoid any problems. It is more cost effective to turn off your gas water heater when you will not be using it for a period of time. It also helps minimize overheating problems that may occur while you are not there to take care of them. However, this isn’t the only reason you might need to turn off your heater at some point. The shutting down of the water heater is an emergency operation that can avert a tragedy if you discover the bottom of the water heater is leaking, the pressure-relief valve is spouting water, or you hear the hiss of gas coming from anyplace around the water heater.

How to Turn Off a Gas Water Heater (with Pictures) iStock/Getty Images image courtesy of Olivier Verriest

Water Heater Shut Off Valve

The gas control valve is generally red or black in color and is positioned on the front of the tank, near the bottom, where the gas is being controlled. It is possible that it is concealed by insulation; if this is the case, take back the insulation to uncover it. The “On” position on the dial selector should be shown by the dial selector. Turn the dial all the way to the “Off” position once it has been moved beyond the “Pilot.” This turns off the pilot light and prevents the burner from igniting as a result of the pilot being turned off.

Switch the dial to “Pilot” if you merely want to turn off the heater for a few minutes to do maintenance or cleaning.

Turn Off the Gas Line Valve

It’s a good idea to switch off the gas valve on the gas supply line as well if you’re going to be away from home for a lengthy amount of time or hear hissing coming from the heater. The gas line should have a shut-off valve someplace near the heater, which you should be able to locate. To turn off the gas, crank the gas valve 1/4 turn until the lever is perpendicular to the gas line, then turn the valve off. If there isn’t a valve near the heater, follow the gas line until you locate one that works.

If you are unable to locate it for any reason, you should call your gas utility for advice.

Turn Off the Water Heater

If you want to leave your home during the winter, when temperatures may drop below freezing point and cause the water in the tank to freeze, you should drain the water heater as a safety measure. Wait 12 hours after turning off the gas to allow the water in the tank to cool down in order to prevent being scalded by the hot water. To empty the tank, follow these steps:

  • Place a bucket beneath the discharge pipe of the pressure relief valve that has been left open. Pressurize and depressurize the tank by opening and maintaining the pressure relief valve in an open position. Release the lever in a gentle manner
  • Drain the tank’s contents using a hose connected to its drain valve at the bottom. Run the hose to a spot where the water may be securely drained and turned off. It is normally preferable if this place is at a lower elevation than the rest of the property. Draining the water into your garden is a good technique to prevent it from being wasted. Shut off the cold water supply to the heater and turn on one or more of the house’s hot-water taps
  • Pour water down the drain and let it run until it is completely drained. Drain the water by closing the drain valve. Close all of the faucets.

In most cases, if the water would not drain, it is because mineral deposits have accumulated in the drain hole.

Remove the hose and use a length of wire to clean the deposits from the hose. As soon as the water starts to flow, turn off the valve and reconnect the hose to the faucet.

Here’s How to Easily Turn off the Gas to Your Water Heater

When it comes to turning off the gas supply to your water heater, there are a variety of things to consider. For example, if you are intending to replace a water heater, you will need to turn off the gas in order to complete the task. Nonetheless, there may be more important—and more urgent—reasons for you to take this action. Immediately turn off the gas to your water heater if you detect the odor of gas in the area of your water heater (or anywhere else in your home, for that matter).

Safety Considerations

The smell of gas indicates the presence of a probable gas leak, which must be found and rectified as soon as possible. Despite the fact that natural gas is odorless, utility companies add a chemical that has the odor of rotten eggs to their gas lines so that consumers may quickly detect the presence of a gas leak. A gas leak, if left untreated, has the potential to cause an explosion or a fire. If the gas smell is particularly strong, leave the premises immediately and contact the gas utility company for assistance.

Following that, you may contact the utility provider and request that they come to your location to find and repair the leak.

Gas companies are very aware of the potential risk posed by gas leaks, and they are quite active in their efforts to contain them.

By leaving the water heater’s open flame unattended, you run the risk of detonating any gas leak that occurs anyplace in your home.


To turn off the gas to your water heater, follow this simple procedure. You may use it for normal repairs and maintenance or as an emergency measure if you smell gas in the house.

Clear Around the Water Heater

  • Remove any things from the area surrounding the water heater so that you can have access to the gas pipe and shutdown valve. It will also assist the gas provider in doing a rapid examination of the issue if they are looking for leaks if the area has been cleaned.

Locate the Gas Pipe

Locate the gas pipe that supplies gas to your water heater, as well as the shutdown valve on that pipe. This is not the valve that is placed on the control box that is mounted on the water heater, but rather a valve that is positioned along the length of the pipe run. Due to variations in installation and installation timing, the valve may appear differently depending on who performed the installation. Most plumbers install a shutdown valve that is actuated by a lever or knob that is positioned within a few feet of the water heater control box.


  • If your water heater is old or was built by a novice, the shutdown valve may be missing or may be positioned a long distance away from the water heater, which is a serious safety concern. To locate it, trace the gas pipe back from the water heater burner until you come across the valve (see illustration). If you discover that there is no cutoff valve at all, your only choice will be to turn off the main gas valve at the gas meter
  • However, this is not recommended.

Shut off the Gas Valve

  1. Turn the shutdown valve handle a quarter turn until it comes to a complete halt. When the valve is shut off, the handle should be at a 90-degree angle to the course of the pipe itself
  2. A handle parallel to the pipe indicates that the valve is still in the open position. In addition, you should double-check that the water heater has been switched off completely. Make sure the burner has not lit by increasing the temperature setting on the control box, then checking inside the access hatch at the bottom of the heater to ensure it has not been started.

When to Call a Professional

You should contact your gas provider right away if you suspect a gas leak so that they can examine and rectify the problem. Once again, this is a complimentary service provided by the gas utility provider. Even after turning off the water heater, you may still smell gas. In this case, turn off the gas at the meter and contact the gas company.

Where Gas Leaks Occur

In the vast majority of cases, a utility technician will discover a very simple source of a gas leak, such as a minor gap in a connection between pipe segments or a connection between a flex tube and a gas pipe that has been disconnected. It is possible that the problem may be resolved in minutes, and that the answer is as easy as tightening the connections. The use of a soap-and-water combination to cover the joints of gas pipe joints and then looking for bubbles is an old reliable approach for testing for gas pipe leaks.

Technicians will most likely use an electronic detecting wand to check for the presence of gas around each joint and determine which ones need to be tightened or replaced in the future. After the expert has finished with the repair, he or she should turn on the water heater for you.

Water Heater Safety Tips

  • Keep the area surrounding the water heater free of obstructions. Many people utilize the flat top of their water heaters for storage or built-in shelves, but these areas should always be kept clear to allow for simple access and necessary safety procedures to be followed. Aside from that, appropriate ventilation is required for water heaters as a fire protection strategy. Combustibles such as paints, chemicals and solvents should never be kept next to or on top of your water heater.

How to Turn Off Gas to a Water Heater

Turning off the gas supply to a water heater is a straightforward process that may be completed in six simple stages. Get quotations from as many as three professionals! Enter your zip code below to get matched with top-rated professionals in your area. if you smell something like gasoline near your water heater, it is possible that you have a natural gas leak in your home. You should shut down the gas supply as soon as you are able to do so. To your advantage, this procedure is straightforward, and you can do it in 10 to 20 minutes with only your hands and a few common home equipment.

  • Difficulty of the project: 1 out of 5 It will take anywhere from 10 to 20 minutes, depending on the position of your gas valve and gas meter. The following tools and materials are required: A flashlight, a mobile phone, a wrench, and a gas leak detector (optional) should be carried.

DIY vs. Hiring a Pro to Turn off a Water Heater’s Gas Supply

If you believe that you have a gas leak and wish to take a precautionary measure, you can switch off the gas supply to the water heater by yourself. An hour’s labor from a professional plumber can cost you anywhere from $45 to $200, and most plumbers will charge you for an hour’s work even if the job only takes half that time. As long as you have the proper equipment on hand, turning off the gas on your own should not be a costly endeavor. Gas leaks, on the other hand, are a significant problem, and shutting off the gas should just be the first step in dealing with them.

A gas leak should be reported immediately to 911 and a local gas plumber should be contacted for an assessment and correction of the problem.

How to Turn Off a Gas Water Heater

To switch off the gas supply to your water heater, simply follow these simple instructions.

1. Call 911 if You Suspect a Leak

It is impossible to overestimate the risk posed by a gas leak. It’s recommended to evacuate your house if you smell gas and then phone 911 or your gas company’s emergency number and follow the directions that are given by the operator. After you have been given permission to re-enter your space, you may proceed to cut off the gas to your water heater by following the instructions outlined below.

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2. Find Your Water Heater

You should begin by identifying the location of your real water heater. According on the architecture of your home, the water heater will be located anywhere in the garage, basement, crawlspace, or attic; however, it is more common for them to be in the attic. Water heaters are occasionally found in a furnace closet that has been designated for them. In the event that you are having difficulty locating it, simply dig up the floorplans for your property. The exact position of the water heater should be depicted on these blueprints.

3. Locate the Shut-off Valve

All gas appliances are equipped with a separate shut-off valve, which is normally located within a few feet of the appliance.

You can normally discover the gas shut-off valve on your water heater by looking for a single handle, which is usually located at or near the bottom of the device. Having a flashlight or mobile phone on hand might also be beneficial if you need assistance locating anything.

4. Turn Off the Gas Supply

Switch the valve counter-clockwise to turn off the gas. If the valve is stuck, you may need to use a tool to pry it out from its position. If you are unable to turn the gas valve or if you are unable to locate the gas valve, you may be required to turn off the gas to the entire home. It’s also important to remember that, once the problem has been identified and corrected, you may need to re-ignite the pilot light.

5. Make Sure the Water Heater is Turned Off

You should check to verify if the water heater has been successfully switched off before proceeding. Increase the temperature setting on the heater’s control box in order to do this. Open the access hatch and have a peek inside to see whether there is a burner. If it hasn’t sparked yet, you’re okay to go for now.

6. Clear the Area

During the process of shutting off the gas water heater, take a moment to clean the immediate area of debris and clutter. This will allow a contractor to analyze the issue swiftly and devise a game plan for the project’s completion. It is possible that clearing a path to the water heater that is simple to travel may result in a reduction in the cost of a gas valve replacement or the installation of new gas lines. Photograph courtesy of Minerva Studio/

How to Turn Off Gas to the Whole House

Some older water heaters may not have a shut-off valve, or the shut-off valve is located far away from the heater. If you have been unsuccessful in shutting down the gas supply to your water heater, use these procedures to shut down the gas supply to your whole home.

1. Find the Gas Meter

A gas meter should be installed someplace outside your home. Most of the time, you may find it on the front or side of your house. In other instances, it may be contained within an enclosure that is attached to the outside of the structure. If you are experiencing difficulty locating the meter, do not hesitate to contact your local gas supplier for more assistance.

2. Locate the Gas Meter Shut-off Valve

A gas meter should be installed someplace outside your home to provide you with natural gas. It’s normally located on the front or side of your home, depending on your location. The location of the enclosure might, in rare instances, be within the walls of the structure itself. Do not hesitate to contact your local gas supplier if you are having problems locating the meter on your property.

3. Turn Off the Gas Supply to the Home

When the gas valve is parallel to the incoming gas line, the valve is open. It is necessary to rotate the valve by a quarter turn so that it is perpendicular to the gas line in order to halt the flow of gas. This valve is often only accessible through the use of a wrench, so make sure you have one on hand. Once the work is finished, the gas line is shut down and the flow of gas is stopped. Shutting down the gas supply to your home can buy you some time while also removing any immediate risk from the situation.

However, you should contact a plumber as soon as possible to have your gas lines repaired. Their expertise will allow them to locate and correct the source of the noxious odor. In most cases, the cost of installing or repairing a gas line will range from $258 and $817.

In Case of an Emergency, Shut Off Your Water Heater!

The following steps will show you how to turn off your water heater if it is leaking or not performing correctly. This will prevent damage to your system and property. To switch off your gas water heater, turn the gas shut-off valve to the OFF position. If it’s an electric heater, turn the power switch off or turn the circuit breaker to the “OFF” position on the circuit breaker panel. If you’re not sure which type of water heater you have, electric water heaters feature alternating current power wires instead of a big exhaust pipe on the top.

  1. Alternatively, shut off the main water valve to your home.
  2. Place the other end of the hose in a lower area where it will not be harmed by the hot, rusty water that will be coming out.
  3. Remove the pressure relief valve from the tank to allow air to enter the tank while it is being drained.
  4. 5.
  5. We’ve arrived on the scene and are ready to work.

5 Simple Steps to Turn Off Water Heater

Gas or water leaks are some of the things that might cause the most anxiety in a person. However, if you know how to switch off a water heater, you won’t have to worry about this all of the time. When you hear your digital alarm go off, now is not the moment to worry or do anything stupid. Even before you hire a plumber, you must switch off all of the utilities to prevent a gas or water leak from spreading.

How to Turn Off Water Heater

Heat exhaustion, unusual noises, and other warning signals indicate that you are in danger, and you must take action immediately. So, if you want to learn how to switch off a water heater, then follow these simple steps: 1.

Step 1. Disconnect from the Power Source

The first step is to locate your water heater’s power source and disconnect it from the grid. If there is an electric unit, make certain that the circuit breaker is turned off before proceeding. When dealing with the gas unit, look for the dial that is next to the thermostat and turn it in the other way.

Step 2. Turn the Water Off

This procedure should not be performed until you are certain that the electricity connection to the water heater has been switched off fully. If you have an electric tankless water heater or a gas tankless water heater, they both have numerous types of handles to choose from. Some handles are circular, and all that is required to switch them off is a little rotation to the right of the handle. With this operation, you allow cold water to flow into the sink and tubs, and hot water will no longer be available to those fixtures.

If you are unable to locate the location where the water supply is linked to the heater, switch off the water supply to the entire home. Navigate to a valve near the meter and flip it in the other way by removing the box and turning it back.

Step 3. Carefully Drain the Water in the Tank

Check the bottom of the tank to see if there is a place where you can attach a hose to drain the water. Insert the hose’s other end into a floor drain or a bathtub until all of the hot water has been drained. To find out if there is any special advice concerning safety when draining water, carefully read the product handbook. The first step in figuring out how to switch off a hot water heater is to cut off both the electricity and the water supply. Once this is completed, you will be able to reduce any possible risk that leaks or a faulty propane gas water heater may provide.

Step 4. Label Your Circuit Breaker

It is possible that the content of your circuit breaker is complex and ambiguous. This will need the use of labels to ensure that you are aware of the original position of each component. In the event of an emergency, and you are forced to turn off the power totally, those labels will be quite useful. If you have a circuit breaker that has already been labeled, carefully inspect each component to discover its purpose. You don’t want somebody to assume you shut off the electricity when you actually did not.

Step 5. Practice Shutting Off Water Heater

When their heater leaks or their alarm goes off, the majority of individuals worry and get befuddled. The only way to avoid this confusion is to be aware of how to switch off the water heater in advance of when it is needed. Maintaining the practice of emptying your water heater every six months will help you become more familiar with the procedure. Make a practice of turning on and off the hot water heater supply that runs throughout the entire house. Become adept at opening the valve carefully, since twisting it too rapidly might exacerbate the situation.

This understanding is also applicable when it comes to cutting off the water supply to all of the appliances in your home.

When your water heater is heating, you will not want to make the situation worse by not knowing how to switch it off when it is heating.

How to Turn Off a Gas Water Heater

If your home is equipped with a tankless gas water heater, you must be familiar with how to turn off a Gas water heater. To have it done correctly, follow these simple steps.

Step 1: Turn Off the Water Heater Valve

You will see a red or black button on the front of the tank if you look closely. These buttons are sometimes buried under insulating materials, and you must remove the insulating material in order to show the button. The switch should be moved or turned from the “on” position to the “off” position. When you turn off the heater, the pilot light will cease operating and the burner will stop heating.

Remove the heat shield and inspect the inside for evidence of heat or flames before replacing it. If you’re performing maintenance, switch on the pilot light; the flame will remain lighted, but the burner will not function.

Step 2: Turn Off the Line that Supplies Gas

If you wish to go outside and hear the heater hissing, turn off the gas line valve before you leave the house. Simply go to the heater and turn off the gas valve that is situated on the gas line near the heater. The lever should be perpendicular to the gas line when it is fully extended. If you can’t locate any valves, follow the gas line until you come to a handle that functions as a switch for the light. Gas line valves are usually straightforward to find, and you won’t have to spend much time looking for them.

Step 3: Shut Down the Water Heater

If you’re going to be away from home during the winter, make sure you drain the water from the tank to prevent it from freezing. Turn off the water heater and leave it off for 12 hours to enable the water to cool and prevent scalding from occurring. You drain your tank, be sure to do the following: Make sure you have a bucket underneath the pressure release valve so that the water flows directly into the bucket. Open the relief valve to enable the steam to escape, and then gently release the lever to close the valve completely.

  • Pull the hose to the specific location where you want the water to drain from.
  • You should drain the water into your garden if you have one if you have a home with a garden.
  • Allow for complete drainage of the water by keeping the drain valve open until the water is completely gone.
  • Alternatively, if the water does not drain, it is possible that mineral deposits have accumulated in the drainage channels.
  • Reattach the hose and turn on the valve one more to complete the process.

How to Turn Off an Electric Water Heater

When it comes to turning off your electric water heater, the five actions listed below are helpful. Follow the instructions and you will discover how to turn off your water heater in your residence.

Step 1: Turn Off the Breaker

Locating the two-pole circuit breaker is the first step in figuring out how to switch off an electric water heater. It has a current of around 30 to 50 amps and is generally labeled. Even if you have turned off the electric water heater, it is always a good idea to cut off the electricity at the breaker panel. If the breaker is equipped with lock-out lugs, secure them to the breaker. If you are concerned that you will make a mistake, identify the breaker with paper tape to prevent this from happening.

They should refrain from getting close to the service panel or the water heater until you are finished with them.

As a precaution, check the interior of the lid with a non-contact voltage tester to ensure there is no heat trapped within. When replacing the water heater element, it is dangerous to expose yourself to electric shock or high temperatures.

Step 2: Put a Tag on the Breaker

Safety regulations require that you label everything you are working on in order to prevent anyone from being injured. When working with electricity, it’s best to keep the area closed off to prevent prospective victims from entering the area. Mark the location and the equipment to serve as a warning to anyone who might unintentionally walk too close to the site. When it comes to the home, simply turning off the breaker isn’t adequate because everyone is exposed to the same hazard. The use of identification and restrictions to notify family members about potential threats would be extremely beneficial.

Don’t take the concept of safety lightly because even a single electrocution can result in death.

Putting paper tape on the breaker and labeling it “Do Not Touch” is another technique to ensure safety.

Step 3: Cool Off the Water

Before you begin any repairs, you will need to let the water in the tank to cool down. It is advisable to switch off the heater in order to prevent the water from being overheated. Set aside some time for the water to gently and gradually cool on its own. You should avoid attempting to chill the water by adding cold water to the container. Simply turn on a faucet in your home and let it to flow for an extended period of time. After some time, the water should feel lukewarm, which indicates that it is okay to begin your repairs.

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Before using hot water for showering, laundry, or dishwashing anywhere in the house, wait one hour.

Step 4: Turning Water Off

Water tanks should always be equipped with a shut-off valve located on the outlet outside the home’s perimeter. The tank’s placement prevents it from accumulating an excessive amount of internal pressure. When working on the hot water tank, make sure to turn off the cold water supply. If your tank has two valves, locate the one that allows cold water to enter and shut it off completely. When facing the tank, the valve is normally on your right as you stand facing it. Normally, two valves should not be found on a single supply line, therefore use caution when doing this task.

The cold line is used for cold water, while the hot pipe is used for hot water, as the name implies.

The hot water supply line is the one that vibrates as the water flows out of the faucet.

Step 5: Drain the Hot Water Tank

As you learn more about how to switch off the hot water heater supply, you’ll come across a few interesting facts. It is possible to carry out various chores without having to empty the water tank. While changing or testing the thermostat or monitoring the power supply unit, you can leave the tank at its maximum capacity of 80%. Draining the water is required before doing activities such as removing or replacing an element or flushing sediments.

The accumulation of deposits in the bottom part of the tank might have an impact on the heating of the water in that section. Before emptying and making repairs, turn off the water heater and allow it to cool down completely.

Wrap Up

Clearly, shutting off water heaters of any sort has never been as simple as it is right now. The only prerequisite is that you know how to switch off your water heater. Yes, it is as straightforward as that. In the comments area, please tell whether your experience was similar or different from mine. Thanks for reading. We’ll be delighted to benefit from your first-hand knowledge. Continue to keep in mind the following summary of the processes outlined in this article:

  • Turn off the water heater and the circuit breaker
  • Turn off the lights and radio. Take care of your repairs before re-connecting the water.

How To Turn Off a Hot Water Heater

It is the purpose of this article to explain how to turn off a gas hot water heater. Water tank interior parts may be damaged if the required procedures are not followed. There are just a few steps to complete, and they are all straightforward. Gas water heaters and electric water heaters are the most common types of water heaters found in most households. Propane would be included in the definition of gas for the purposes of this debate. If you have an electric hot water heater, go to the article ‘How to Shut Down an Electric Hot Water Heater’ for specific instructions on how to shut down this type of appliance.

See the section on “troubleshooting gas water heaters” for information on all forms of gas water heater issues.

Identifying Water Heater Types

Are you unsure about which kind you have? There are a few of distinguishing characteristics that make it simple to determine which type you are wearing. Electric water heaters are easy to spot because of their wiring that enters them via their tops (Figure 1). Aside from that, because they do not need any fuel to heat up, electric water heaters do not have any vents. The vent at the top of a gas water heater is a telltale sign that it is working. Your hot water heater’s heat exchanger might be made of metal or plastic, depending on its efficiency level.

How To Identify a Gas Hot Water Heater

The presence of a gas valve and burner assembly at the bottom of the water heater is a telltale indicator that it is a gas water heater. A strong metal gas pip will be fitted to the gas valve to ensure that it operates properly. In the bottom of the unit, there will be a burner assembly, which will be covered by a detachable plate. In order to protect the bottom gas line and thermocouple connector, this plate will protrude from the wall. After the outer cover plate has been removed, it is generally easy to see a pilot light via a window in most cases.

Fume Vent at Top

Natural (or propane) gas hot water heaters heat water by burning the gas that is supplied to them. When fossil fuels are used, they release hazardous gases into the atmosphere. As a result, a gas hot water heater will always include some sort of venting system. The efficiency of the hot water heater determines the sort of vent that should be used.

Higher efficiency units will employ a plastic pipe to vent through an exterior wall, rather than through the ceiling. A lower-efficiency unit will be vented through a brick or metal fireplace. Electric water heaters will not be equipped with any form of venting system or mechanism.

Gas Lines

Of course, it comes to reason that a gas hot water heater would run on natural or propane gas to heat the water it produces. This sort of gas is a low-pressure fuel that necessitates the use of a massive pipe system to transport it. The pipe that will be linked to the burner assembly stated above will be required. When you look at the water heater, you will be able to see this pipe clearly. It will be joined to the gas valve located at the bottom of the unit and will typically be connected on the left side of the unit when facing the water heating unit.

Lack of a Vent

Electric hot water heaters do not have vents, unlike gas or propane models. The use of vents on gas water heaters is essential in order to eliminate hazardous gases. Electric water heaters do not emit any fumes, and as a result, they do not require a vent. Vents can be constructed of metal or plastic, and they are often installed in a chimney, a metal vent pipe, or through an outside wall. With an electric water heater, the only thing that can be found on its top is its water inlets and a power line.

Upper and Lower Access Panels

Electric hot water heaters heat water by circulating it via heating elements. The majority of them are composed of two elements: an upper and a lower component. The heating components are hidden behind access panels on the side of the water heater for easy access. It is possible that the panels will be spaced differently, but typically one will be towards the bottom of the water heater and the other can be anywhere from the middle of it to the top. The panels may be a different color from the rest of the water heater housing or the same color as the rest of the water heater housing.

A gas water heater will simply have a gas valve and a burner access panel at the bottom of the water tank, and will not have any other features.

No Gas Burner

Internal heating components are used in an electric hot water heater, which eliminates the need for a burner assembly. Typically, the burner component is located at the bottom of the hot water heater, making it easy to locate. Are you unsure about which kind you have? There are a few of distinguishing characteristics that make it simple to determine which type you are wearing. Electric water heaters are easy to spot because of their wiring that enters them via their tops (Figure 1). Aside from that, because they do not need any fuel to heat up, electric water heaters do not have any vents.

Your hot water heater’s heat exchanger might be made of metal or plastic, depending on its efficiency level.

No Gas Lines

In the case of an electric water heater, there will be no gas line connected to the water heater. Gas lines are massive, heavy pipes with a lot of large fittings attached to them.

The term “black pipe” refers to the fact that it is black and greasy when it is constructed. The gas line links to the gas valve, which is located at the bottom of the water tank. On an electric water heater, you will not notice any of these features.

Shutting Down and Gas Hot Water Heater

When it comes to correctly turning down a gas hot water heater, there are four stages to follow: (1) To operate on water pipes or drain the tank, turn the gas valve control to the pilot position. (2) If you need to perform any additional repair on the hot water heater, turn the gas off entirely. (3) Reduce the temperature of the water within the tank. (4) Turn off the water supply to the hot water tank from the cold. (5) Turn on a hot water faucet somewhere in the home (ideally on the second floor).

Step One – Setting a Gas Valve On ‘Pilot’

The gas valve for your water heater is placed near the bottom of your water heater, right above the burner chamber, and is easily accessible. There is a gas valve on the top of the tank that has several settings. Off, Pilot, and On are the three most important settings to remember. When the dial is set to ‘Pilot,’ the gas to the burner will be turned off without the pilot light being extinguished. The convenience of not having to re-light the pilot when you are finished may be a significant time savings.

It is appropriate for use while draining the tank or doing maintenance on the water pipes in the home.

Step Two – Turning the Gas OFF

Working on your gas hot water heater should always be done in the safest manner possible. Leaking gas has the potential to explode and is extremely dangerous. To begin, turn the dial on the gas valve to the ‘OFF’ position. By just turning off the gas valve, you are not truly shutting off the gas. Next to the water heater is a ball valve that is part of the gas piping system. The handle of this valve should be perpendicular to the pipe once it has been rotated 90 degrees. After shutting off the gas valve fully, the gas is no longer present, making it safe to operate around the water heater.

Step Three – Cool Down the Water

This is a critical first step. Water that comes right out of a gas hot water tank can be extremely hot and scald or burn you if you are not careful. Run a substantial volume of hot water through one of the fixtures until the water is only slightly warm to the touch. Do not combine it with cold water; instead, run it just with hot water. It is expected that the cold water flowing into the tank will dilute the hot water and lower its temperature. To work on the water heater, it is best to wait until the water has completely cooled down.

Step Four – Shut Off the Cold Water Supply

It is not necessary to turn off the water if you have not switched off the gas supply to your gas hot water heater. If the water within the water heater continues to heat after the water has been turned off, the heater will build up an excessive amount of pressure. You can switch off the cold water supply if you are certain that the water has been turned off.

Step Five – Open a Hot Water Faucet

The opening of a faucet will avoid the development of an air lock in the water heater.

Any attempts to drain the water tank will be unsuccessful if a faucet is not left open to allow for the passage of air. It should be okay to begin working on your hot water tank at this point.

Step Five – Draining a Hot Water Tank

The majority of repairs on a gas hot water tank may be completed without the need to drain the tank. There are, however, a few notable outliers that must be taken into consideration. The removal or replacement of a gas valve will need the draining of the tank. This section of the tank is threaded directly into the bottom section of the tank. Another task that necessitates the use of an empty tank is the removal of silt. A effective preventative maintenance routine includes flushing away water heater sediment on a yearly or semi-annual basis.

Where To Next?

After you have done your repairs, you will need to restore the functionality of your water heater. Instructions may be found in the page titled “Starting a Hot Water Heater.” The procedures are identical to those for turning off a water heater; the only difference is that you must follow them in the proper order.

How To Shut off Gas Hot Water Heater

It is possible that you will need to shut off your gas hot water system in an emergency situation. A gas hot water heater has both water and gas flowing through it, and the system must be shut off, especially in an emergency, until your gas specialist can arrive. You may be able to continue to have access to cold water for other home necessities, such as toilet and kitchen usage, if you learn how to disconnect the watergas from your hot water system. Depending on how difficult it is to isolate your hot water system, you may have to switch off the mains water supply to your home.

Reasons to Shut Off Gas Water Heater

  • Leaky hot water tap in the house
  • A ruptured hose or pipe leading to an interior hot water tap
  • The hot water system is leaking water
  • A leaking or ruptured pipe in the hot water distribution system
  • There is a gas smell coming from the hot water system.

The next procedures are the same for hot water heaters that use LPG or natural gas as fuel. Step 1: Locate the location of your gas hot water heater. Step 2Find the yellow handle tap and turn it on. The color yellow denotes the presence of a GAS tap. This is the pipe that distributes gas to your hot water heater and other appliances. Turn the yellow tap off by pressing it twice. Turn the tap counter-clockwise. (Righty Tighty, et cetera.) You have now completed the shutoff of the gas feed to the hot water heater.

  • Step 3Configure the water supply to the hot water system to where it is most convenient.
  • It will be a water tap or a valve on a water line in this case.
  • By turning on a hot water faucet within your house, you may verify that you have properly switched off the water to the hot water heater.
  • There is a possibility that you have not turned off the hot water tap completely, or that the tap has seized up.
  • Since 1983, we’ve been delivering hot water solutions to members of our local community with pride.

We also guarantee our craftsmanship. For calls received before 11:00 a.m., we may provide same-day service. From Brisbane to the Gold Coast, including Logan City, we provide an honest, dependable, and pleasant family service.

When You Should Turn off Your Water Heater

When it comes down to it, a water heater is a really straightforward item. You can rely on a tank water heater to provide you with consistent hot water for 10-15 years — all it wants in return is for you to do some routine maintenance on it. However, there are occasions when the unit’s upkeep must be taken into mind. A common question we receive from consumers is, “Do I need to switch off my water heater if.?” The following are responses to three frequent circumstances.

See also:  Why Does My Hot Water Heater Make Noise

When the main water supply is shut off

It is possible that the main water supply will be switched off in a variety of situations. When this occurs, many homeowners ask if it is safe to leave the water heater turned on or whether it should be turned off as well. Yet, turning off the water heater may not be absolutely essential in the majority of circumstances; however, doing so will not be harmful any way. However, there are two instances in which you should turn off the unit to avoid excessive pressure or heat from building up inside the tank: (1) When the unit is not in use; and (2) When the unit is in use but not in use.

  • The tank is completely depleted (or almost depleted) and will not be replenished for an extended length of time
  • The main water supply is experiencing low pressure

When you go on vacation

When you travel on vacation or anticipate being away from home for a lengthy period of time, you should follow the standard procedures for preparing your house. You may make changes to your heating and cooling systems, program automated lighting, and place a hold on your mail. But what about the water heater in your home? While it may seem rational to turn off the water heater when it is not in use in order to conserve energy, this may not be as advantageous as you may expect. For starters, turning on and off the unit may be disruptive and difficult for the unit.

Instead, use the “VAC” mode on your water heater (which is a typical feature on contemporary water heater types) or lower the water temperature to 50 degrees Fahrenheit.

When there’s a leak

The unit should be turned off and the water supply should be turned off until the problem is remedied. A leak can occur for a variety of causes, including age or a valve fault.

Plumbers in Murrieta and Winchester, CA

If you have any further concerns concerning your tank or tankless water heater, or if you believe it’s time for maintenance or repair, call the local plumbing experts at Liberty Plumbing for assistance. If you’d like to book an appointment, please contact (951) 760-4215.


The query “How do I switch off my water heater?” is one of the most often asked queries we receive from clients at Horizon Services. The ability to accomplish this task is something that every homeowner should have. In the event that your water heater is overheating, making strange noises, or otherwise acting abnormally, it is EXTREMELY IMPORTANT that you do not allow it to continue to operate; the longer the problem is allowed to persist, the more likely it is that you will experience leakage, flooding, or worse.

Do-it- Anyone who does their own water heater maintenance will want to empty the water from their tank every three months to minimize sediment buildup, enhance performance, and reduce energy use.

No matter whether you have a gas water heater or an electric water heater, these procedures should be followed each time you need to turn off your water heater.

Use the figure below to see where each of these services will be performed on your water heater and where you can anticipate them to be performed.

Water Heater Shutdown Instructions:

  • If you have a gas heater, you can turn it off by turning a dial on the top of the thermostat from ON to OFF. Electric: Turn off the water heater’s circuit breaker by pressing the button on the circuit breaker.
  1. DISCONNECT THE WATER SUPPLY. Turn the handle on the water valve in a clockwise direction until it comes to a complete halt. Switch off the main water valve for the entire home
  2. Then drain the water heater. If the water doesn’t stop, turn off the water heater. Connect a hose to the drain valve, which is located at the bottom of the tank. The other end of the hose should be routed to a lower location where you may safely discharge the rusty, hot water without causing any damage. Raise the temperature of a hot water faucet in the house in order to allow air to enter the tank
  3. OPEN THE RELIEF VALVE Flip the handle so that it is pointing straight out or up from the table. (USE CAUTION: scalding hot water is present)

My Gas Water Heater Keeps Shutting Off! What Do I Do?

There are few things more frustrating than getting ready to take a nice shower or bath only to discover that you can’t obtain any hot water. In contrast, if your gas water heater is constantly shutting down for no apparent cause, this is exactly the situation you may find yourself in! Gas water heaters automatically shut off for several reasons, the most common of which are that the pilot light has gone out, the pilot light cannot be ignited, or there are difficulties with the gas supply. In this section, we’ll look at what you can do to get to the bottom of this problem and improve the reliability of your hot water supply.

Dirty Thermocouple

If you are able to ignite your pilot light, but it continues to go out, the thermocouple is the first component to examine. In order for the water heater to be ignited for the first time, a valve must be opened and gas must be let into the burner before the pilot light can ignite the gas. After approximately 30 seconds, the heat from the lit pilot light flame triggers a simple electrical switch known as a thermocouple, which guarantees that the gas supply to the pilot light remains open and that your water heater continues to operate.

The thermocouple is frequently located right next to the pilot light, making it immediately visible.

If the thermocouple is contaminated, switch off the gas to enable it to cool down.

Bent or Damaged Thermocouple

Because it must be positioned in the pilot flame in order to function, the thermocouple will not function. A thermocouple may get twisted or broken as a result of a collision or simply from the passage of time. The thermocouple may be straightened by gently bending it closer to the pilot light, but if it is damaged or broken, you may need to hire a plumber to repair or replace the thermocouple completely.

Dirty Pilot Tube

It is possible for dirt or soot to accumulate in the pilot light tube, which can result in a weak flame or even the failure of the pilot light to illuminate at all. If you observe a faint, flickering yellow flame emanating from your pilot burner instead of an intense, blue flame that rises to a maximum of 12 inches in height, the most likely cause is a filthy pilot burner. When the pilot tube has cooled, you may carefully clean it with a needle to remove any clogs, but if the problem persists, you should contact a professional plumber.

A Bad Gas Valve

Your gas water heater will shut down if the supply of gas to the pilot light or burners is interrupted owing to damage to the gas valve or its internal parts.

If you’ve eliminated the possibility of a problem with your pilot light or thermocouple, the gas valve on your water heater is most likely to be to blame. Your plumber is the most qualified person to do gas valve repair or replacement.

Dirty Or Clogged Air Inlet

Air intake screens are found at the bottom of gas water heaters, and they can become clogged with dust, dirt, soot, fur, and lint. Gas water heaters are also susceptible to rust. If the air intake screen becomes blocked, it will not allow enough air to get through to keep the gas burners operating, resulting in the water heater shutting down. If you discover the scent of natural gas emanating from your water heater at any time, leave your house immediately, switch off your gas supply, and contact your gas provider for emergency help.

Magnificent Plumbing, your local plumber, can provide you with experienced guidance on how to restore consistent operation to your gas water heater.

How to Turn Off Your Water Heater

When it comes to your water heater, things might get a little crazy. They may begin to leak, or a digital alarm (if the water heater is equipped with one) may begin to ring if the water heater begins to fail. Maybe you’re in a state of panic because the water heater alarm is going off or because a geyser of water is threatening to destroy your home or other property. The first step is to switch off the water heater. Do you, on the other hand, know how? Here’s how to quickly and securely switch off your water heater, including how to turn off the electricity to the water heater.

How to Turn Off Your Water Heater

Use the instructions below to securely and efficiently turn off your water heater in the safest and most effective manner. The following are the actions to take in order to switch off your water heater:

  • Remove the electricity from the source
  • Turn off the water supply. Take care while draining your water heater. Circuit breakers should be clearly labeled. Walk through the process of turning off your water heater before you need to

We will go into further depth about each of these procedures to switch off your water heater further down in this section.

1. Turn off the power source

This step must be completed first in order to avoid injuring yourself or damaging the heater. Depending on whether or not you have an electrical unit, you must shut down the circuit breaker for your hot water heater (it will either be located on your main circuit breaker panel or, less often, near the heater itself). If you have a gas unit, turn the dial near the thermostat to the ‘Off’ position. Making sure the breaker for your hot water heater is turned off or turning off the dial adjacent to the thermostat is critical before continuing with the rest of the process.

If you require assistance in locating the breaker panel or the dial to a gas unit, please do not hesitate to contact us for further assistance.

2. Turn off the water

Only proceed with this step if you are certain that the power to your water heater has been turned off. The Best Way to Turn Off Your Hot Water Heater It’s possible that your water heater has several distinct sorts of handles on it. If you find a circular handle on the valve, turn the handle clockwise to shut off the water supply line. It will be linked to the cold water input on the water heater. Once it is completely closed, but not overtightened, no more water will enter the heater; nevertheless, your sinks and tubs will continue to have access to cold water, and they will continue to receive warm water until the heater is completely emptied.

After opening the box, you will need to spin the valve nearest to your house (which is often outside your home and near the curb in newer suburbs), and after doing so, you will need to seal the box again.

3. Drain your water heater carefully

You will find a drain valve at the bottom of the tank, which may be used to connect the tank to a home. Connect it to your tub drain, a floor drain, or an exterior drain where the hot water will not harm people or damage your lawn. Using the drain valve, you may evacuate water from your tank once it has been properly installed. Draining your tank is an additional step beyond simply turning off your water heater, but it is necessary if your digital read-out suggests it or if you notice a leak from the body of the water heater that you can stop by draining the tank.

Even after you have turned off the power, the tank will still be full with scorching hot water, so empty it carefully and avoid coming into touch with it; the temperature will remain high for several hours after you have turned off the power.

Label your circuit breakers

Many circuit breakers regulate numerous things at the same time, and the sequence in which they do so is not always obvious. Labeling your breakers ahead of time is the easiest method to prepare yourself in the event that you need to completely shut down the electricity in your home or the electricity to a specific device immediately. If the previous owner labeled your circuit breakers, go ahead and check them to make sure they are accurate; believing that you have turned off the electricity to an item or a section of your home when you have not is dangerous.

Walk through shutting off your heater before you have to.

When an alarm goes off or when someone notices a leak spreading over the floor, everyone experiences a brief moment of terror and disorientation. If you practice shutting off your water heater, you will be more familiar with any oddities or unusual processes your water heater has before you need them. If you keep your water heater in good working order by emptying it every three to six months, you will be even more comfortable in the case of an emergency water heater failure. Also, make sure to turn the water back on in your residence when you’ve finished.

If you are unfamiliar with how to operate your main water valve, ask the plumber to demonstrate the proper process when they arrive to inspect your heater.

This recommendation, similar to the one for a circuit breaker, is applicable to more than just your water heater.

When you have a leak, you don’t want to waste time hunting for it; but, the main water valves might be difficult to locate at times.

If you are unable to switch off your water heater or if you require the services of a professional to inspect it, you may contact here or call 1(888)393-1772 for emergency assistance in the tri-state region (see below).

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