How to Prevent Your Tankless Water Heater from Freezing
Keep Your Tankless Water Heater from Freezing – How to Prevent It? Do you want to know how to keep your tankless water heater from becoming ice cold? Especially in northern areas where temperatures frequently drop below freezing, plumbing systems are not well received by Old Man Winter. Water heaters are also susceptible to his icy fury if the right safeguards are not taken to prevent it. Freeze damage to tankless water heaters often manifests itself in the form of standing water inside the device freezing and expanding, causing damage to the internal components of the heater.
- The electric freeze prevention heaters must be plugged in before they may be used. They will not function unless there is a power supply available. Even with the built-in electric heaters, extremely cold conditions may necessitate the use of extra precautions to avoid freezing. Only the most vital components of the heater are protected by the freeze prevention system.
In order to guarantee that your water heaters last during the winter, follow these freeze prevention recommendations. Installing your water heater in a warm location is essential. Although it is not always practicable, placing a water heater in a warm environment will, by its very nature, assist to prevent freezing during the colder months of the year. Whenever possible, use vent terminations that are equipped with wind-resistant characteristics and place them away from the direction of prevailing winds (to cut down on that wind chill).
As previously stated, any standing water, no matter how insignificant, might accumulate within the device and freeze.
- When going away for a lengthy amount of time, empty the unit to avoid this from happening again.
- Maintain a reliable power source.
- Keep in mind that this does not imply that the water heater must be turned on; it only requires that the appliance be connected.
- Take into consideration a recirculation system.
- Another advantage is that it allows the heater to continually warm your pipes, preventing your plumbing lines and equipment from freezing over during the winter.
- Make certain that pipes are properly insulated with fiberglass or polyethylene insulation or heat tape.
- One method of avoiding pipes from freezing is to feed at least a trickle of water, measuring 0.1 to 0.2 gallons per minute, down the hot side of the furthest fixture overnight while turning off the gas to the heater.
This will maintain the water flowing through the system and reduce the likelihood of it freezing. Contact the Noritz technical staff at 1-866-766-7489 if you have any more concerns about freeze prevention.
Cold Weather and Your Tankless Water Heater: How to Prevent Freezing
Whenever the weather becomes cold and the temperatures begin to drop, your tankless water heater is more susceptible to freezing and experiencing other weather-related problems. Whether you’re winterizing your hot water heating system as part of the process of closing down a summer cottage or you live in a region with frigid winters, your tankless system will require a little more care. If you live in a cold climate, this article will provide you with the knowledge you need to protect your tankless water heater from freezing.
Can a Tankless Water Heater Freeze?
Tankless water heaters require special attention throughout the winter months. Even water heaters that are located indoors may be susceptible to problems caused by the cold weather. The majority of manufacturer’s warranties do not cover damage resulting from freezing. A freeze protection feature is included into many units by manufacturers like as Rinnai and Rheem. This feature lets the unit to protect itself when temperatures dip below freezing. Rinnai tankless water heaters offer two layers of protection to keep them safe from the elements and prevent them from freezing in the winter.
Activated when the temperature goes into the low 30’s, these ceramic heaters help to keep the interior parts from freezing.
This technology makes use of a sensor located within the unit to identify whether or not the tankless is below freezing.
Both of these approaches will provide freeze protection for the Rinnai unit as long as the device has access to both electrical power and natural gas to operate.
How to Thaw a Frozen Tankless Water Heater
Frozen pipes and a frozen water heater are also possible consequences of cold weather. The unit should not be used if the exterior plumbing leading to the water heater has frozen, or if the water heater itself has frozen. Take the following steps:
- TURN OFF THE ELECTRICAL POWER AND CLOSE THE GAS AND WATER OFFSHUTOFF VANES
- Allow enough time for the tankless unit to defrost. To see if the unit has thawed, open the Water Supply Valve and check for leaks. In the event that water begins to flow, the tankless water heater has thawed. Ensure that all exterior pipes, internal components, and plumbing are thoroughly inspected for leaks. As long as everything appears to be in working order, you may open the gas and water valves and switch on the electrical power.
Protecting External Pipes from Freezing
Many homeowners overlook the need of protecting the exterior piping that leads to and from their tankless water heaters, but these pipes and valves are particularly vulnerable to freezing if they are left exposed to the elements. A pipe wrap insulation or a pipe heating cable can be used to insulate the exterior pipes from freezing, preventing a severe headache. Both approaches are straightforward, low-cost, and widely available options. Pipe heating wires are available that are approved for outdoor usage and will keep pipes from freezing at temperatures of up to -50°F (-40°C).
However, you should always read the manufacturer’s guidelines for the individual items before wrapping your pipes with heating cable and then adding pipe wrap insulation.
How to Prevent a Tankless Water Heater from Freezing
Even though your tankless water heater is equipped with built-in freeze prevention, there will be instances when you will need to drain it. You will be left helpless against the chilly conditions if you ever lose electricity, and your tankless would be at risk of freezing. For lengthy periods of time away from home, we strongly advise draining your tankless system, especially in cold areas. Despite the fact that tankless heaters may always be manually drained, installing a set of offereze protection solenoid valvesis a wonderful approach to provide you with peace of mind during the chilly winter weather.
Freeze protection solenoid valves are also known as drain down solenoid valves or “usually open” drain down solenoid valves, depending on how they are configured.
When there is a power outage, the valves on the tankless water heater automatically open and release the water stored within the tank.
Even if you decide not to install this additional layer of safety, it is recommended that you take the steps below to safeguard your tankless water heater in the case of a power loss during the winter:
- Pump Drain Plug should be manually opened or removed. Remove the plug from the Condensate Trap Drain
- Remove the plug from the Water Drain
Drain Down Solenoid Valves from Rinnai It is highly recommended that you install a freeze prevention solenoid valve kit on your outdoor unit in order to prevent the unit from being frozen.
How to Manually Drain Your Tankless Water Heater
If your tankless unit does not have the freeze prevention solenoid valve kit installed, you will have to manually drain the unit whether you are draining it because of cold weather conditions or for another reason. Manually draining the tankless heater is more difficult, but it is just as effective at removing the water from the tankless heater’s inside. The following steps will show you how to manually empty your tankless water heater:
- Immediately shut off the cold water supply and switch off the gas supply. To turn off the temperature control, turn it off on the wall. The electrical power to the water heater should be turned off
- We recommend that you turn on a hot water tap or faucet inside the residence first. This will assist in reducing the pressure within the heater
- A bucket should be placed beneath the water heater to collect the water
- Remove the Drain Caps from the Hot and Cold Isolation Valves and OPEN the valves to allow the water to flow through. Because the hot water is under pressure, it has the potential to “blast out” of the unit. Caution should be exercised since the water may be heated. REMOVE the Cold Water Inlet Filter from the system. Drain plugs should be removed from your tankless water heater if they are present. Each of these drain plugs is positioned on the bottom of the tankless unit: the water drain plug, the pump drain plug, the condensate trap drain plug, and the hot water drain plug.
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When you’re ready to begin utilizing your tankless water heater, you’ll need to switch it back on so that it can resume regular functioning. This is a relatively simple method that is essentially the inverse of the draining procedure described above. Here’s what you should do:
- Check to make sure that all of the drain plugs have been removed from the unit, that all of the hot water taps/faucets have been turned off, and that the gas supply has been turned off. Replace the drain plugs for the water, the pump drain plug, and the condensate trap drain plug. Replace the Check Valve Drain Plug with a new one. Replace the cold water inlet filter and re-open the cold water supply valve to allow the water to flow. This will allow the tankless unit to fill with water
- However, it is not required. DON’T forget to turn on the hot water tap or faucet inside the house. You can close the tap/faucet if water is flowing from the tap/faucet, which indicates that the tankless water heater is functioning properly
- Otherwise, you can leave the tap/faucet open. In order to use the tankless heater, turn on the electrical supply. Check to make sure that the Temperature Controller is turned off. Activate the natural gas supply
- The Temperature Controller should be turned on.
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It’s not suggested to use this approach for lengthy periods of time, such as vacations, but it can be useful in an emergency situation when there is a power outage or the temperature dips beyond the unit’s capacity to freeze protect itself. Running a small amount of water through a tankless water heating system will help to keep the heater and external pipework from being iced over. Take the following steps:
- Turn off the electrical power to the tankless water heater
- Close the gas supply valve
- And turn on a hot water tap or faucet anywhere in your home to test the water temperature. It is recommended that the water flow at a rate of one-tenth of a gallon per minute, or that the water stream be. The breadth is 20 inches.
How to Winterize a Tankless Water Heater
Consider winterizing your tankless water heater if you have a vacation home or intend to be away during the winter months. This is a preventative measure to keep the unit from freezing. Cold weather conditions may develop fast, and preparing for them in advance can spare you from a significant amount of stress. Please bear in mind that these instructions are intended to serve as a reference only, and that your specific tankless water heater may have different needs than those outlined here. You should always refer to your heater’s owner’s handbook for detailed instructions on how to use it.
Make certain that they will guarantee their services and will reimburse you for any fees incurred if the project is not completed appropriately. Taking thorough notes will ensure that you know exactly what to do next year! Here’s what you should do: Natural Gas Availability
The Provision of Water
- The cold water supply to the tankless water heater should be turned off. Pour water out of the unit by turning on the freeze prevention (drain down) solenoid valves on the cold and hot water lines
- Start by turning on a few of hot water taps throughout the home. Remove the intake filter from the cold water line and set it aside. Remove any plugs or inline filters that may be present on the hot water side of your tankless system to allow for expansion if there is any water within the lines that freezes.
Remove the power supply to your tankless water heating system by disconnecting it or setting the circuit breaker to “off” position. In the event of a power surge or loss, this will safeguard the tankless water heater from being damaged. Ventilation System- If it is possible to reach the end of the vent safely, cover both the intake and exhaust vents with a cover. Debris, leaves, and even tiny animals like squirrels will be prevented from being stuck within the vent and producing air flow troubles when it’s time to use your tankless water heater once more.
Keep Your Tankless Water Heater From Freezing
The proposed carbon tax in New York could cost your family $21,000 over the course of ten years. Contribute to the fight against it. To learn more, please visit this page. It is well known that the winters in Sullivan County can be quite cold – and that your home plumbing system might suffer as a result if you do not take the necessary safeguards. Your tankless water heater is one piece of equipment that is susceptible to harm caused by cold weather: standing water within the unit can freeze and cause damage to delicate interior components.
During a very severe freeze, however, additional precautions may be required to keep your water heater from freezing and to preserve its most vital components.
Frozen Water Heater Prevention
Here are five suggestions to keep your water heater from freezing and to ensure that it lasts throughout the winter:
- Install your tankless water heater in a warmer location– If at all feasible, avoid installing your tankless water heater in a basement that is not adequately heated. Tankless systems are becoming increasingly small and may be mounted on the wall, allowing you to be more creative with their placement. Drain your water heater since even the tiniest bit of ice can cause interior plastic components to become damaged or brittle. Prevent this from happening by emptying the unit, especially if you’re going to be away for a lengthy amount of time. Have a contingency plan in place– In order to function, freeze prevention systems require electricity
- If you live in a region prone to power outages, consider adding a backup system to keep the electricity flowing. Install proper insulation to protect pipes and water heaters from damage caused by the winter cold. Using fiberglass or polyethylene insulation, or heat tape, insulate your water heater and the pipes that go to and from it
- Start by running a trickle of warm water from the faucet that is the furthest away from the water heater overnight to avoid a frozen pipe problem. This will maintain the water flowing through the system and reduce the likelihood of it freezing over.
Are there any additional questions you have regarding maintaining your tankless water heater, or about installing a new one in your Sullivan, Eastern Ulster, or Northern Orange County residence? We can assist you. To learn more or to receive a FREE, no-obligation quote, please contact us now.
Maintaining Tankless Water Heaters in Freezing Temperatures
Tankless water heaters are often positioned on the exterior of the home, against the wall. Tankless water heaters might be particularly sensitive to damage in cold weather as a result of this. While tankless water heaters do not have the capacity to store significant volumes of water like tank water heaters, they are nonetheless susceptible to freezing in cold weather conditions. The freezing temperatures that might occur in a tankless water heater during cold weather may cause you to be concerned.
- The built-in electric heaters must be connected in order to operate, and they will not operate during a power outage.
- We can assist you!
- The electric freeze prevention will not protect outside pipes or other components that are not directly connected to the tankless water heater.
- For more information, please see our post on the best ways to keep your tankless water heater functioning while there is no power available.
Continue reading if you want to learn how to maintain your tankless water heater safe in cold weather and what to do if your hot water stops working in the middle of winter.
How a Tankless Water Heater can Freeze
Water in tankless water heaters that are located outside is susceptible to freezing when standing water within the heater is exposed to wintry weather and the freezing temperatures that come along with it. The majority of indoor and outdoor tankless water heaters have built-in freeze protection against freezing temperatures that kicks in when temperatures drop into the low 30s Fahrenheit and range from -5 to -22 degrees Fahrenheit over a short period of time. As previously stated, most tankless water heaters have built-in freeze protection against freezing temperatures.
If your tankless water heater is beeping, it is possible that there is a problem with the internal components as a result of the freezing temperatures.
Because water expands when it freezes, a tankless water heater that is exposed to cold weather will not only cease operating, but the expanding water may also cause damage to the inside components, resulting in you having to pay for an expensive repair or replacement.
6 Tips to Keep Your Tankless Water Heater from Freezing
When it comes to dealing with a frozen water heater, prevention is always the best method to employ. Because most tankless water heaters have built-in freeze prevention, this is not a concern. When these protection measures fail or malfunction, you are at danger of suffering from freezing damage.
Install your water heater in a warm area
While it may not always be practical, placing your water heater in a warm location is the most effective approach to prevent it from freezing. Even though it is preferable to stay indoors and away from the harsh winter weather, an outdoor heater may be properly positioned to help alleviate the affects of the cold. Here are a few suggestions about where to locate outdoor water heaters:
- Place the water heater away from the wind, which will reduce the impact of wind chill on the water heater’s performance. Fences and barriers may be used to stop the wind, or you can install the heater inside of a large hole to protect it from above-ground wind gusts. Install vent terminations that are wind-resistant in their operation
Run a small stream of water through the tankless water heater
Water will normally only freeze if it is left standing for an extended period of time. If you run a tiny, consistent stream of water through your tankless water heater, you may considerably minimize the likelihood of your tankless water heater freezing. It doesn’t have to be much – 0.1 to 0.2 gallons per minute should be plenty to keep the water from freezing in the pipes. By turning on a tap that is slightly out of the way, you can achieve this goal. While this may result in a slight increase in your water bill, the savings from avoiding an expensive water heater repair charge will more than offset the increased expense.
Use of the built-in electric heaters
Several tankless water heaters are equipped with built-in electric freeze prevention heaters, which prevent standing water from freezing and turning into ice. In order for these heaters to be effective when they are in perfect working order, you must first ensure that they are connected to an electrical outlet with a dependable power supply. They will not function if they are not connected to an external source of electricity. Electricity outages are widespread during periods of high low temperatures or after winter storms.
The installation of a backup battery power supply for your tankless water heater is yet another option to consider.
Furthermore, freeze prevention heaters are only effective down to temperatures as low as -22 degrees Fahrenheit, at the most.
In the event that you reside in an area where the winters are exceptionally cold, you may need to take further precautions to ensure that your tankless water heater does not malfunction.
Winterize the tankless water heater
Whether you’re dealing with a water heater at a vacation home that goes out in the middle of winter or a power outage in cold weather, if you’re going to be away for a lengthy amount of time, you should drain the water from the heater. It will completely avoid the possibility of standing water freezing and causing damage to the internal components. You’ll also save money that would have been spent on preventative measures if you had done nothing. Some tankless water heaters are equipped with solenoid valves that provide freeze prevention.
Ice protection solenoid valves are always “open,” and electricity is required for them to close in order for the valve to close.
How to manually drain your tankless water heater
If your tankless water heater does not have a freeze prevention solenoid valve kit installed, you will have to manually empty the system in order to prevent it from freezing. To manually empty your tankless water heater, follow these steps.
- Turn off the gas and cold water supplies
- Turn off the electricity. The temperature control panel should be turned off. The electrical power to the water heater should be turned off
- To alleviate pressure in the pipes, turn on the hot water faucet at a sink within the home before turning on the valves. A bucket should be placed beneath the water heater to collect the water
- The drain caps on the hot and cold isolation valves should be removed. Open the hot and cold isolation valves, if necessary. Remove the cold water intake filter as well as any drain caps located at the bottom of the water heater and set them aside.
Tankless water heater maintenance may be done at the same time as winterizing.
Install a hot water recirculation system
For those who live in a very chilly region, it can be worthwhile to consider installing an air circulation system. The majority of the time, these systems are designed to give an instant source of hot water at a specific spot. However, they also continually engage both your water heater and your pipes. However, while this will protect your heater and pipes from freezing, the added expenditure is likely not worth it for most people. Other advantages of a recirculation system include minimizing the amount of time it takes hot water to reach the fixtures that are the furthest away from the tankless water heater.
Insulate your water supply pipes
Water does not only pass through your water heater; it also passes through other things. Your pipes are also at risk of freezing, and they do not have the freeze prevention devices that are included in the majority of tankless water heaters. When it comes to pipe insulation, there are a few materials you can use to protect your pipes from freeze damage that are not as expensive as other options.
- Insulation made of heat tape, polyethylene insulation, and fiberglass insulation
What to do if Your Tankless Water Heater Freezes?
It might be a little frightening to wake up to a tankless water heater that seems to be frozen. When it’s chilly outside, having access to hot water is very crucial, yet that also happens to be the time of year when your water heater is most prone to freeze. Consequently, if you turn on the water faucet in the middle of winter and nothing but ice-cold water comes out, there’s no need to get too worked up.
There’s a considerable probability that your water heater isn’t really frozen in the first place. However, if this is the case, you’ll most likely be looking at a pricey replacement, since most frozen water heaters cannot be used to heat water again.
Check the water supply pipes
When you have no hot water, the first thing to look for is a leak in the pipes. Your water heater’s pipes flowing into or out of it are considerably more prone to freeze than the heater itself. The most likely location to discover a frozen pipe is the area where they enter and exit your home. It is important to examine this piece of piping for frozen standing water before proceeding with any other work since it is the most exposed to the environment and cold wind gusts that can cause water to freeze.
- When frozen water expands, it has the potential to cause significant damage to most traditional plumbing materials.
- All of the above methods, including using a hairdryer, space heater, or heat gun, will swiftly defrost the water.
- Increase the temperature on your thermostat and open up any sections that contain pipes to allow the heat to reach them.
- Using a combination of local heat (a stream of air directed at the frozen piece) and global heat (your home’s heating system) should be sufficient to defrost practically any frozen pipes you come across.
Check the condition of your tankless water heater
If the pipes appear to be thawed and functioning as intended, you should inspect the water heater for problems. A frozen heater is only likely to occur if you have experienced a prolonged power outage or if you have left the heater turned off for an extended length of time. As a result, it is unlikely that a frozen heater would result in a rapid loss of water pressure. Having said that, it is still feasible, and it is something you should investigate more. The quickest and most straightforward approach to determine whether or not your heater is frozen is to open the drain valve.
If the tank is turned on and appears to be working, but no water is draining from the drain valve, there is a good likelihood that the heater has been filled with frozen water.
When water freezes, it can do serious damage to the internal components of your heater, making it more cost effective to simply replace the damaged components rather than hire a professional to fix them.
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Can Tankless Water Heaters Freeze in the Winter?
You are currently browsing the blog archives for the category “water heater.” Tankless water heaters are susceptible to freezing in the winter. Tankless water heaters require a little additional attention and care during the cold, frosty winter months, since this equipment is susceptible to malfunctions as a result of freezing. It will be explained in further detail below by a heating and air conditioning repair specialist.
Can Tankless Water Heaters Freeze in Cold Weather?
Many manufacturers, fortunately, provide versions that include built-in freeze protection, which allows the equipment to defend itself when temperatures go below freezing. Some water heaters, for example, have ceramic heaters installed on the heat exchanger and other internal components of the unit. They are activated when temperatures drop to about 30 degrees, which prevents the internal parts from becoming frozen and breaking down.
Cold Climate Tips for Tankless Water Heaters
Despite this, tankless water heaters are susceptible to freezing if certain measures are not followed. A heating repair technician provides the following important advice for winterizing your heating equipment: First and foremost, switch off the machine and unhook it from its power supply. Then, switch off the water supply and drain the water from the device as instructed. Immediately lower the water pressure and unplug the water supply pipes from the water heater. After that, don’t forget to cover the intake and exhaust ports to protect debris from getting into the engine.
- Then, in regions that are not vulnerable to freezing temperatures, such as within walls, drain pipes should be installed.
- Alternatively, a backdraft damper can be used to prevent airflow in the opposite direction from being created.
- If you require water heater maintenance, drain and sewer repair, heating and cooling installation, or any other service, you can rely on R.A.
- To find out more about our high-quality products and services, please call (541) 249-7876.
How to Prevent A Frozen Tankless Water Heater
When it comes to tankless water heaters, cold weather can be a hindrance. These animals frequently require more attention in order to avoid having weather-related ailments such as freezing. The presence of this issue in classic tank-style water heaters is uncommon, but it is one that may be avoided with regular water heater maintenance. Due to the fact that most manufacturers do not cover damage caused by freezing under their warranties, it is critical to give your tankless system a little more attention throughout the winter months.
Since manufacturer guidelines differ, you should always consult your owner’s handbook for precise information on your individual item.
Protecting Your Tankless from Cold Weather
When it comes to cold weather, many homeowners are concerned about their outdoor tankless water heaters, but it’s also crucial to keep a watch on inside tankless water heaters. Because even indoor tankless water heaters might suffer problems during the colder months of the year! Other Preventative Measures can be found by clicking here. It is explained in this post how to prevent your tankless water heater from freezing and what to do if it does freeze in this article.
How to Protect Your Tankless from Freezing
A easy and economical method of protecting the exterior piping and valves of your tankless water heater is to first insulate the external pipes using a pipe heating cable, followed by the addition of pipe insulation. There are a wide range of various things available to purchase. A built-in thermostat is also included in certain models, which is meant to heat the pipes when temperatures dip close to freezing. These pipe heating cables are affordable, and they might provide you with additional protection against a major problem.
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The ability to enable your tankless water heater to just pump a small volume of water through the device is useful in some situations. However, we do not advocate employing this approach in cases where it will be utilized for longer periods of time, such as a vacation or a long business trip. This feature might be useful if there is a power outage and the temperature rises over the point at which the device can freeze protect itself.
- Turn off the electricity
- Close the gas supply valve
- And turn on a hot water faucet anywhere in your home to test the system. Install a faucet that will flow at a rate of 1/10th of a gallon per minute (or the breadth of the water stream should be.2 inches).
Built-in Freeze Protection
Higher-end brands and models are frequently equipped with some form of built-in freeze prevention within their appliances. Rinnai is a fantastic example of this, since they have built in two lines of protection into their forces to protect them from attack.
- On the heat exchanger, water pipes, and other internal sections of Rinnai units, ceramic heaters are used to heat the water. As soon as the temperature dips into the low 30’s, these heaters will begin to function
- If the temperature lowers too quickly, or if the ceramic heaters fail to ignite for any reason, Rinnai has a backup mechanism in place to keep you warm. An internal sensor in the tankless will activate if the internal temperature of the tankless goes below freezing temperature. Afterwards, it will automatically turn the device on for a few of seconds. When the water within the unit reaches around 58 degrees, the system will cycle on and off until there is no longer a concern of freezing
- However, this may take many hours.
With power and natural gas readily accessible, the Rinnai tankless system is well protected against the threat of freezing temperatures. If there is no access to power or natural gas, manual freeze prevention should be employed.
How to Winterize Your Tankless
Winterizing your tankless water heater is a good preventative strategy, especially if you will be away from home during the winter. Weather may change quickly, and sudden ice, snow, and freezing storms can be particularly concerning if you are not in a position to take the necessary preparations at the time. Always refer to your water heater’s owner’s handbook for exact instructions on how to use your unit. These instructions are intended to serve as a broad guideline only. It’s possible that your unit has different needs.
- The cold water supply to the tankless water heater should be turned off. The unit should be drained by opening the drain down (freeze protection) solenoid valve located on the cold and hot water pipes. OPEN a number of hot water faucets around the home
- REMOVE the inlet filter from the cold water line
- REMOVE the plug or inline filter from the hot water line to allow for expansion if there is any water remaining in the pipes that freezes
- OPEN numerous hot water faucets throughout the house (Not all systems are constructed with these fittings on the hot water line, and not all systems have them.)
- Turn the unit’s power off by pressing the power button. The unit may either be unplugged or the circuit breaker can be turned off, depending on how your system is configured. Your tankless water heater will be protected if there are any power spikes or outages.
- If you are able to access the intake and exhaust vents safely, cover the ends of the vents with a cover. Leaves and trash (and, on sometimes, squirrels) are drawn into the vent and become stuck. When it comes time to restart your tankless water heater, air flow concerns might arise.
You might want to think about hiring a plumber to take care of winterizing your tankless water heater for you. Make certain that he will guarantee his services and reimburse you for any fees incurred if things aren’t performed properly.
As an extra benefit, you’ll be able to take thorough notes and complete the task yourself the following year with confidence! Check with your local plumber and get FREE estimates today.
How to Drain a Tankless Water Heater
Even though a tankless water heater is equipped with built-in freeze prevention, it is occasionally required to drain the unit. For those who are without power or who are about to travel for a lengthy period of time, it’s a good idea to empty their unit, especially if they reside in a cold-weather location. These systems can be drained manually, as we’ll discuss more below, but if freeze protection solenoid valves have been fitted, the process is made considerably simpler. Drain down solenoid valves are a type of freeze protection solenoid valve that is also known as drain down solenoid valves.
When the power is disconnected, the valve automatically opens, allowing the device to be completely drained.
If your device does not already have these valves, we strongly advise that you install them.
In the event that your tankless system is in risk of freezing, freeze protection solenoid valves will automatically release the water stored in the tankless system.
How to Manually Drain a Tankless Water Heater
The manual draining of your tankless system will be required if your tankless system does not have freeze prevention solenoids installed. Manual draining is more difficult, yet it is just as effective as automatic draining. Here’s what you should do:
- Shut off the natural gas and the cold water supplies. The temperature control should be turned OFF. CONNECT the electrical power to the breaker box. Make sure there is an empty bucket under the water heater. To open the hot and cold isolation valves, remove the drain caps from the hot and cold isolation valves, and then replace the drain caps. Because the hot water that will be discharged will be under pressure, proceed with caution. (Opening a hot water tap before opening the valves will assist in reducing the water pressure.) REMOVE the cold water inlet filter and any drain plugs located on the bottom of the unit
- REPLACE the cold water inlet filter and any drain plugs located on the bottom of the unit.
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How to Return a Tankless to Normal Operation
Once the threat of cold weather has passed, it is time to put your tankless water heater back into service. To do so, follow the steps outlined below:
- Examine to make sure that all hot water faucets are CLOSED and that the gas supply is turned OFF. REMOVE AND REPLACE ALL DRAINS PLUGS drain plugs (for water, pump and condensate trap) are included in the package. REPLACE the check valve drain plug
- REPLACE the cold water intake filter
- REPLACE the check valve drain plug. A hot water tap should be opened to ensure that water is flowing through the unit. OPEN THE COLD WATER SUPPLY VALE AND ALLOW THE UNIT TO FILL WITH WATER
- OPEN THE COLD WATER SUPPLY VALE AND ALLOW THE UNIT TO FILL WITH WATER Then turn OFF the water supply. Activate the electrical power supply
- Examine whether or not the temperature controller is set to the “OFF” position. In order to use the gas supply, you must first turn on the thermostat.
How to Thaw a Frozen Tankless Water Heater
Cold weather may not only cause the piping running to and from your tankless unit to freeze, but it will also cause chaos because the interior elements of the unit may also get frozen as a result of the cold weather. Here’s what you should do:
- NOTICE: DO NOT TURN ON THE WATER HEATER. Remove electrical power from the system, and then CLOSE the gas and water cutoff valves. Wait for the tankless unit to come to room temperature. DISCONNECT the water supply valve. It indicates that the unit has thawed when water begins to flow through the valve. Check for leaks in the exterior plumbing as well as the interior components and pipes. If you see a leak, you should contact a licensed plumber immediately. Assuming everything appears to be in working order, OPEN the gas and water valves and TURN ON the electrical power.
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When It’s Cold Outside, Will My Outdoor Tankless Hot Water Heater Still Work?
A tankless water heater has significant limitations, yet it nevertheless performs admirably throughout the colder months of the year. When it comes to winterizing a tankless hot water heater, the answer is yes. It is correct to say “Yes.” Tankless water heaters utilize a condenser to pre-heat the water, which reduces the amount of time it takes for the water to reach the temperatures that have been pre-set for hot water flow. The water is heated to the desired temperature at a rate of around 1.6 gallons per minute, according to the property owners.
- It is a widespread misconception that the temperature of the hot water generated by a tankless water heater is limited by the temperature of the surrounding environment.
- The response is, once again, “Yes.” Even yet, if certain measures are not followed when the temperature drops below a particular threshold, the tankless hot water heater may freeze.
- This type of protection cannot tolerate prolonged exposure to temperatures below freezing.
- The first step in winterizing your tankless water heater is to switch off the device and unhook it from its power supply.
- Reduce the water pressure and unplug the water pipes from the water heater to avoid damage.
- Following that, when constructing a concentric or dual vent system, make sure that the vent pipes are facing away from the wind to avoid freezing.
- Ensure that gas-powered appliances have enough combustion air to avoid negative draft from freezing the water in a tankless unit, or employ a backdraft reducer, which seals the backdraft flapper, to prevent negative draft from occurring.
- These procedures can help you maintain your hot water heater operational throughout the winter, even when the outside temperature drops below freezing.
If the temperatures drop for a brief period of time, you may not need to take any action. During the winter months, if it is anticipated that the weather will remain cold for an extended amount of time, call a professional to winterize your tankless hot water heater.
What To Do If Your Tankless Water Heater Is Frozen
In the winter, tankless water heaters provide you with an almost limitless supply of hot water. Inductions in mild to cold regions, on the other hand, necessitate special care. Even when it is really cold outside, the heaters themselves do not require protection from freezing, so long as the gas and electricity are operational. If there is a power outage, on the other hand, you may find your tankless water heater has frozen. Generally speaking, when the atmosphere begins to become chilly and the temperatures begin to plummet.
It doesn’t matter if you’re closing down a summer cottage and need to winterize your water heating system or if you live in a region with chilly winters and need to do so.
In this post, we’ll go over everything you need to know about defrosting your tankless water heater throughout the winter months.
Regardless, it’s important to remember that manufacturer recommendations may differ from one another.
Guide to Thaw A Tankless Water Heater
- First and foremost, you must determine if the problem is with the pipes leading into and out of the unit or with the water heater itself. It is likely to be the case on a regular basis. You may confirm this by just touching the tankless water heater to find the spot where the water is particularly cold, as shown in the image below. The frozen region can be warmed indirectly with the use of a space heater or other heating source until it thaws.
- Additionally, examine for any cracked or burst pipes. When water freezes, it expands dramatically, which is the most common cause of burst pipes. Consider the possibility that there is not enough room in the heater to accommodate the growth. It’s possible that the pipes have damaged or burst in the process. This means that when the pipes thaw, you’ll be dealing with a puddle of water on your hands. As a result, it’s a good idea to know where your water shut-off valve is located before you defrost the pipes of your water heater.
- If you suspect that the entire tankless water heater has frozen over, turn off the gas and/or water supply to the tankless water heater immediately (if thawing frozen pipes did not make the heater working). Remove the system from the vehicle and place it in an open space such as a garage or other out-of-the-way location. As a result, if it explodes during melting, you will not have a messe to clean up inside your home. Make the room warm enough that the frozen water may be melted. You may get the desired result by turning on a room heater. As the frost begins to melt, turn down the heat on your water heater. To accomplish this, just turn off the water supply to the heater and let it cool. Open the little drainage valve that is located towards the bottom of the tank after that.
How To Prevent Freezing Of Tankless Water Heater
You may use the following thawing prevention strategies to ensure that your tankless water heater lasts throughout the winter:
Install Your Heater in a Warm Location
As you can see, the most pleasant method of avoidance is to locate your tankless water heater in a hot or warm environment. For example, you may mount it on a wall that receives direct sunshine throughout the year. Additionally, you can create a protected outside area specifically for this purpose. Additionally, make certain that you mix vent terminals to increase wind resistance.
Drain Your Water Heater
Water will often only freeze if it is left standing for an extended period of time. If you run a small, continuous stream of water through your tankless heater, you may significantly reduce the likelihood of it freezing. It is not necessary to spend a lot of money. For example, 0.1 to 0.2 gallons per minute will be adequate to keep the water flowing and prevent freezing. This may be accomplished by slightly opening a tap at an inconspicuous location. It may, however, result in an increase in your water cost.
Maintain A Power Source
To ensure that the freeze prevention system will function properly, you must be linked to power. Keep in mind that this does not imply that the water heater must be turned on – simply that it must be hooked in. It is recommended that drain-down solenoids or a battery backup system be installed in locations where power failures are frequent.
Consider A Recirculation System
If you live in a very cold area, you might think about installing a recirculation system in your home. These systems, on the other hand, are typically installed in order to provide a direct source of hot water at a specified site. Furthermore, they are constantly interacting with your pipes and water heater. However, while it will keep your pipes and heater from freezing, the additional expenditure may not be worth it for many individuals.
There are further advantages to using a recirculation system. For example, reducing the time it takes for hot water to reach fixtures that are far away from the tankless water heater might be beneficial.
Insulating your water heater will aid in preventing the device from becoming frozen. Don’t forget to insulate your pipes as well! They should be particularly cautious if they are located in an area with poor levels of safety. Those pipes that are located in the crawl space or attic are particularly sensitive to damage. You can use the following methods to achieve the best results:
- Insulation made of fiberglass, heat tape, and a polyethylene coat
Have A Backup Plan
Frost protection equipment require electricity to function properly. Consider the following scenario: you live in an area where power outages are often. You might consider incorporating a backup mechanism to ensure that the juice continues to flow.
The freezing of pipes is common throughout the winter season, especially when temperatures drop below freezing. Although it is not unusual for tankless water heaters to do so, it is not typical for them to do so. The primary reason for this is that they are typically filled with hot water. If you leave the tankless water heater off for an extended period of time, you may find yourself with a frozen tankless water heater on your hands. That, too, was a time when the outside temperature was below freezing.
To defrost your water heater, be patient and follow the steps outlined below.
How to Protect a Tankless Water Heater in Freezing Weather
Tankless water heaters provide a constant supply of hot water for you; nevertheless, particular factors must be taken into account when installing them in climates ranging from moderate to cold. As long as the power and gas are operating, the heaters themselves do not require any protection from the cold weather conditions. If there is a power outage, it is possible that the heater will suffer from frozen water within its system. Including an emergency drain line during the installation process avoids this issue.
It necessitates the use of a heat source in conjunction with insulation, which is referred to as “heat tracing” a water system.
- To determine how much heating wire and insulated pipe tape you will want, measure the length of the pipes that will be flowing into the tankless heater. Those jogging outside, those running along the inside of external walls, and those in uninsulated basements are all susceptible to freezing. Connect the heater tape to the nearest 120V circuit at the beginning of the pipe, near the heater, and turn on the power. To create a spiral design along the pipe, run the tape down it, twisting it every 12 inches to create a twist in the tape every 12 inches. The electrical tape should be used to secure the heater tape to the pipe every few inches. Allowing the heating tape to cross itself along the pipe is not recommended. If you are only a few inches short of the pipe’s end, it will be alright since the remainder of the heated water will maintain that water at a temperature above freezing. In case you have any extra heating tape, wrap it around the final few feet of the pipe in a tight spiral
- Wrap the pipe in an insulated tape spiral pattern, keeping the adhesive side of the tape facing up. With each pass of the tape, overlap the preceding tape by approximately a quarter-inch, ensuring that the whole outside of the pipe is covered with tape. Continue to wrap the pipe until you have completely covered the length of it.
4 Ways to Protect Your Water Heater From the Cold This Winter
The greatest water heaters are engineered to provide hot water to every faucet, tap, or water-using device in your home without the use of additional components. Take a shower, and instead of the relaxing hot water that you expect, you receive ice-cold water. This is not a hypothetical situation. If your water line freezes, you will most likely experience this as a result. So, what can you do to keep from shivering when taking a shower in the winter? We’ll go over some of the things you can take to keep your water heater from freezing in this section.
Drain Your Water Heater
Standing water can gather within your water heater and freeze, causing it to malfunction.
Once the water freezes, ice develops and causes harm to the plastic components inside the system. Prevent this from happening by emptying the unit and disconnecting the water supply to the heater by using the valves found on the hot and cold pipes to turn off the water supply.
Maintain An Uninterrupted Power Source
It is necessary to maintain your water heater plugged in in order for its freeze protection mechanism to function properly. Consider installing a battery backup system for emergency solutions in locations that experience regular power outages.
Install a Recirculation System
If you live in a colder region, you might want to think about putting a recirculation system in your home. During the winter, this system will keep the plumbing system in your home warm, reducing the likelihood of it freezing.
Insulate Your Water Heater
Insulating your tankless water heater might help to prevent it from being frozen from the inside. Attics and crawl spaces are among the most susceptible areas of a home. For the greatest effects, fiberglass insulation or polyethylene wrap should be used. It is possible to ensure that your water heater will not freeze during winter by keeping it at a comfortable temperature. Avoid skipping any of these measures, and be sure you employ all of them in order to preserve your tankless water heater from damage.
D N Plumbing: Your Source For Water Heater Installation
Do you require assistance with water heater installation? D N Plumbing is the only name you need to know. At D N Plumbing, we are dedicated to providing our customers with only the highest quality service. Take advantage of our services for your next water heater project.