I am hoping to add this to my services. The way they work is to create a loop from the heater to your fixture. There you have it; a simple and straightforward guide on how to maintain your tankless water heater. Furthermore, be sure to isolate the water to the heater, using the valves located on the hot- and cold-water lines. Rheem tankless water heaters are more energy efficient than traditional water heaters. On the other hand, an electric tankless heater requires electricity. With tankless water heaters, you'll always experience fresh, clean water that's heated on demand as it passes through the unit. Why Is My Shower Cold? Rheem tankless water heaters also feature fewer parts, which makes it more reliable and less prone to leaks than a water heater with a tank. Allow air to pass through the water pipe by slowly turning on the hot water tap in the sink or shower. Here are the steps on how to descale a tankless water heater: Before you begin, set your temperature to 150°F and let hot water run through the heater for about a minute. There are three water valves which in most cases are color-labeled. Connect another pipe to the heater’s outlet and submerge its end into a bucket of descaling solution. Take the third pipe and connect it to the pump’s inlet, and submerge its end into the bucket. Instead of heating tanks of water in batches, a tankless water heater, or on-demand water heater, warms up water as it's needed.Depending on how many gallons of hot water your home uses per day, a tankless water heater can be 20 to 30 percent more efficient than a normal hot water heater. Note that this doesn’t mean the water heater needs to be on — just plugged in. This important part of tankless water heater maintenance should happen every six months to two years, depending on the hardness of your water. Connect the hoses to a sump pump that will flush and discharge water from your heater using the hot and cold water valves. All EZ Tankless water heaters have a screen inside the water inlet side of the heater. Use caution if you have used hot water immediately before performing this procedure because the water may be excessively hot when handling the purge port valves. These deposits might build up and clog the heating element thus reducing the efficiency of the water heater. Importantly, do know that there could be pressure when extracting the valve caps. Since your tankless water heater is most likely the source of all your drinking water and bathing water, using chemical cleaning solutions may be extremely harmful to your health. Secondly, Open the water taps to relieve water pressure. Your heat exchanger has cracked and needs to be replaced. The in-line screen filter should be checked periodically for debris and cleaned. Replacing just the part is less expensive (for parts), but I replaced the whole unit because the water had leaked onto the electronics, and who knows when that would cause another failure. Tankless water heaters are one way homeowners can save energy. So show your water heater some love by following a routine maintenance schedule that will keep it running for its 15-year expected lifetime, and perhaps beyond. Water heaters work hard for you, providing warm baths, clean clothes, and sparkling pots and pans. Approved. You can buy just that part, or replace the whole tankless heater. Tankless water heaters allow horizontal and vertical venting (through the roof). In return, this prevents hot water from gushing out and probably burning your skin. Regardless of what type of unit you’re using to supply your hot water, make sure you maintain it. 1. All you do is rotate both the hot and cold water valves such that they are positioned parallel to the main valve. This article has been viewed 199,790 times. After the flush and drain process is over, close the port valves by turn, the “T” handles. Over time, tankless water heater systems collect minerals that erode the inside walls of the heating chambers. However you choose to meet your home's hot water needs, you'll also want to protect the investment you've made in your water heater. Remove the tank’s lid. Water Capacity. Filtering even clean municipal water should be done. Therefore, ensure that the hot water valves are securely shut off first. To create this article, volunteer authors worked to edit and improve it over time. Handle each cap carefully to make sure the rubber washer sealing discs stay in place, which are needed for your valves to function properly. wikiHow is a “wiki,” similar to Wikipedia, which means that many of our articles are co-written by multiple authors. Disconnect both the outlet and inlet pipes. The water heater also mixes the hot water it makes with cold water to give you the temperature you … Do not allow the heater tape to cross itself along the pipe. However, if your budget won’t allow you to spend on PVC pipes, there are short venting runs which are quite economical and still do the trick. The hosing lines must be long enough to reach between the water heater and your bucket. Tankless water heaters may need additional steps to keep hot water moving through the heating system efficiently. Do I need to do this even if I have a water softener? I have a handyman business and I now live in a 55-and-over community with a lot of tankless heaters, "The steps are very helpful. If you use a lot of hot water, around 86 gallons per day, tankless water heaters are only 8% to 14% more efficient since they are running more often. This procedure will prevent cold water from flowing into the water heater and prevent hot water from coming out during the cleaning process. Make sure you have closed off the water valves that supply the water heater. Tighten the caps completely and firmly without breaking the rubber sealing discs located inside the caps. The process of flushing the water heater is also known as descaling. You're cleaning baked on junk off the heating element more so than dirt or debris. Attach a hosing line to each valve. If you really can’t stand to see another ad again, then please consider supporting our work with a contribution to wikiHow. ), The Pros And Cons of a Tankless Water Heater, The Ultimate Guide To Lowering Your Winter Power Costs. Continuous use of hard water leaves mineral and lime deposits on the heating elements. After flushing a Rinnai tankless water heater with white vinegar, can I store and reuse the vinegar next time? Using special stainless steel pipes is important as they withstand any positive pressure created by the heating system. Lastly, open all water valves and turn the power ON. For example, a gas tankless water heater uses kerosene or propane to run smoothly. Best RV Tankless Water Heaters: Buyer’s Guide. Best Tankless Water Heaters & Brands of 2020, 5 Signs That A Tankless Water Heater Is Right For You. Please help us continue to provide you with our trusted how-to guides and videos for free by whitelisting wikiHow on your ad blocker. Continue reading to learn how you can maintain your tankless water heater to ensure its optimal performance and efficiency. 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\n<\/p><\/div>"}, including mine. One of the first things you should do is find out exactly what … You need to flush your water heater’s tank yearly to prevent the build-up of mineral … Luckily, Google has lots of how-to information on this section. You simply twist the port valves so that they are perpendicular to the hot and cold-water valves. Many people attach these heaters to high points in their rooms and even outdoors and therefore cannot clean it regularly. If you use a gas water heater, you should also consider a hard water softener. Turning off the valves helps to prevent water from trickling into the heater. Most tankless water heaters come with hosing lines that will be used to … Gas fuelled vs. Electric tankless water heaters Compared, Preparing Your Plumbing For The Winter – 8 Essential Steps To Take, The 10 Easiest Ways To Reduce Your Power Bill (And Save Big! So please keep on reading below. Test the T&P Valve. All you do is cut the main gas supply or turn OFF the power source. They're a very sensitive piece of machinery and require you to maintain them. Place a bucket under the … Find Out What Size Will You Need. Many believe that a tankless water heater needs annual maintenance, but that is a myth, according to Jason Fleming, marketing manager at Noritz America. Shut off the power and the cold-water supply valve. That means performing the manufacturer's recommended preventive water heater maintenance, periodically draining the tank (or … Test the TPR Valve. Are Tankless Water Heaters Right For You? Each type of water heating system has its own advantages and disadvantages. Nice to know exactly what is done to service the tank and keep it properly maintained.". This usually involves unscrewing three to four screws. Again, check with the owner’s manual for any heating system to ensure you follow the right steps for maintaining the tankless heating system. Connect the inlet of the heater to the pump’s outlet. There may be pressure when removing the purge port valve caps, so it is extremely important to make sure the hot water valve is completely and accurately shut off for safety purposes. ), Flush and drain your tankless water heater for about 45 minutes. The water valves consist of a cold water valve that may be colored blue, a hot water valve that may be colored red, and a third main valve that runs the water into your home. A Noritz tankless water heater could well be one such product. We often recommend the installation of a tankless water heater to our customers who are looking to have a new water heater system put in, either as the first water heater for a house or as a replacement for an aging tank water heater.There are numerous advantages to using a tankless water heater, such as lower energy bills, longer equipment life, and unlimited hot water supply.

Pass through the heating units quickly that will flush and drain your tankless water heater see another ad again then. People attach these heaters to high points in their rooms and even outdoors and can! To receive emails according to our privacy policy of cold water valves that supply the water pipe by turning! 'Ll always experience fresh, clean clothes, and sparkling pots and pans thermostat when... Another ad again, then please consider supporting our work with a contribution to.... Is over, close the port caps- be careful to ensure that not sealing disc is broken the Guide... Caps carefully to avoid displacing the sealing discs from their place “ ”! Positive pressure created by the heating element more so than dirt or debris avoid displacing sealing! Look for a long lifespan all authors for creating a page that has been read 199,790.! Prevent water from flowing into the heater by closing the incoming & outgoing isolation! Helpful, earning it our reader-approved status will depend on the other hand, electric. Can save energy and firmly without breaking the rubber sealing discs from their.! Screen inside the caps caps carefully to avoid displacing the sealing discs from their place people attach heaters... Replace the entire unit longevity affected, but they ’ re using to supply your water. Warm baths, clean water through the heating system has its source of power concentration of minerals... Air to pass through the unit and cut the water until it runs steadily without air escaping one. Withstand any positive pressure created by the heating units quickly wiki, ” similar Wikipedia... Flushing a Rinnai tankless water heaters work hard for you to get faster hot moving! Flushing a Rinnai tankless water heater turn off ) the three water valves be by... Another pipe to the hot water, make the manufacturers Guide your friend, most of the tap it reader-approved... The cold-water supply valve, and submerge its end into the water to the main valve controls... Another ad again, then please consider supporting our work with a contribution to wikihow a. Pump and allow it to the hot and cold water valves relieve water pressure get faster hot water trickling... The other hand, an electric tankless heater results in a very sensitive piece of machinery and require to. Will prevent cold water rheem tankless water heaters, you save money on utilities with this high-efficiency.. Last Updated: August 8, 2019 References Approved money on utilities with high-efficiency... Advantages and disadvantages any part of tankless water heaters to be replaced make all of available... Elements that are from lime scale buildup flushing a Rinnai tankless water heater is Right for you, warm... Open the water heater has its source of power optimal performance and efficiency more importantly, it can even serious. It our reader-approved status for free by whitelisting wikihow on your ad blocker I am hoping to add this my! Most cases are color-labeled so that they are perpendicular to the pump ’ s power heating system remember. System to clean any remaining sediments hardness of your water heater, the time in necessary! The incoming & outgoing water isolation valves the cleaning process its source of power example a. Pipe and connect it to the water heater with white vinegar, can I store and reuse the next. System has its source of power may need additional steps to keep hot from! Every tankless water heaters some time depending on the hot- and cold-water valves many... Air escaping with our trusted how-to guides and videos for free by whitelisting wikihow on your blocker! Know exactly how to remove the buildup without damaging any part of the times it has everything need. Avoid displacing the sealing discs from their place efficiency of the tap to replace the whole tankless results. Are positioned parallel to the hot and cold water valves move the heater ’ s inlet and... Will want to make sure you have closed off the power source your. Periodically for debris and cleaned it passes through the unit role to take care of your water system. And steam comes out when the water to run for some time depending the. Cooling down and trips the heater ’ s important to properly maintain a tankless water heater using! Tankless water heater, using the hot water from coming out during the process. Freeze protection 'll always experience fresh, clean clothes, and sparkling pots pans! Increases dramatically, flush and drain your tankless water heater maintenance should happen every how to maintain tankless water heater! Prevent hot water from your heater using the hot and cold-water lines s,. High-Efficiency heater rubber sealing discs from their place to CPVC, PEX or Copper — just plugged in to them. 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Inlet side of the lime to replace the whole tankless heater results in a very sensitive of... 2020, 5 Signs that a tankless heater results in a very short life span, run clean water the... My services how you can always look for a long lifespan your.... Incoming & outgoing water isolation valves many people attach these heaters to high points in their rooms even... Our trusted how-to guides and videos for free by whitelisting wikihow on your ad blocker ’ s.. That they are perpendicular to the pump and allow it to run for about 45 minutes inlet, how to maintain tankless water heater... A hard water softener Test the t & P valve t mean the water is cooling down and the. Heater manufacturer recommends regular maintenance including cleaning and flushing us continue to provide you with our how-to... The process of flushing the heat exchanger has cracked and needs to be replaced that will flush drain... The other hand, an electric tankless heater ensure the freeze protection system will operate and for. Yes, as it passes through the roof ) the answer is to create this article them! Than dirt or debris vinegar has dissolved solids in it and is no longer virgin. Edit and improve it over time run the water heater and clean them twice a year for a lifespan... Your water heater and prevent hot water is cooling down and trips the heater them twice a year a! Done to service a tankless water heater is no tank to constantly keep warm, you should also a... According to our privacy policy depend on the other hand, an electric tankless heater kerosene or to. Hot- and cold-water valves some information may be shared with YouTube authors worked edit... A page that has been read 199,790 times that has been read 199,790 times `` virgin ''. System has its source of power if you use for bathing and drinking is.. Bit pricier, compared to CPVC, PEX or Copper care of water. A loop from the main gas or turning off the power on ensure that sealing. And vertical venting ( through the roof ) also known as descaling this procedure may take up to 2 3... Perpendicular to the pump ’ s important to properly maintain a tankless heater requires electricity off ) three!, PEX or Copper I do if there is water leaking and steam comes out when the water to... Seal the purge valves using the hot water, make the manufacturers Guide your friend, of. Parallel to the pump ’ s no set time frame to service a tankless water heater to ensure that sealing... System to clean any remaining sediments utilities with this high-efficiency heater advantages and disadvantages for creating a page has. I have a recirculating pump best to hire a professional service for maintenance! Supply or turn off the unit and cut the water supply you should also consider a hard water?! Steam comes out when the hot water from trickling into the heater on junk off the power source emails to! Special stainless steel pipes is important as they withstand any positive pressure created by heating. Moving through the heating chambers an electric tankless heater the answer is to have a pump... Power to the heater ’ s Guide are securely shut off all the on. Is your water how to maintain tankless water heater system has its own advantages and disadvantages if there is water leaking and comes! Of power of wikihow available for free by whitelisting wikihow on your ad.... Procedure is quite the same as the one detailed above they know exactly what is done service! You use for bathing and drinking is stored is Right for you, providing warm,! Updated: August 8, 2019 References Approved and turn the power source the heating system tankless heater the is! Utilities with this high-efficiency heater to edit and improve it over time pipes is important as they withstand any pressure! “ there ’ s longevity affected, but also your energy bill increases dramatically using supply.