Yet even tankless models are still exposed to sediment and harsh minerals. Open the purge port valves by twisting them perpendicularly to the position of the cold and hot valves. Save my name, email, and website in this browser for the next time I comment. Don't guess, find out when and how to flush your tankless heater. Locate the hot water pressure relief valve along the hot water line and open it to release any pressure. Tankless water heaters run water through small apertures, so it is important that your water quality be at least fairly high. Also commonly referred to as an on-demand water heater, the tankless water heater may need maintenance every six months if your water heater is set to a high temperature or if you have hard water. Tankless heaters are no exception. Tankless systems use up to 30 to 50% less energy than tank units because they eliminate the need to hold water … Inspect the heating elements. Then, unhook the hose from the connection label “outlet” on the Bucket Descaler and place into an empty 5 gallon bucket. This is because gas tankless models operate by burning gas, which is harder to control than electricity. I am about to install a new Ecosmart Eco 18 tankless water heater and am wondering if it is really necessary to purchase those expensive ($90) brass shut off valves they sell for this application. It builds up a complete producing line in designing and producing high technology tankless water heater both for residential and commercial appliances. There are some commercial solution products available which remove lime scale build-up, however, most manufacturers recommend using vinegar. Unfortunately, that's just the way it is, and if you live in an area with high levels of hard water, you'll definitely want to be pro-active. Place your submersible pump into a five-gallon bucket. In addition, you'll want to keep safety top-of-mind. Navien models tend to be more straightforward, but some Takagi models require additional steps to position the water control valve properly. How to Install a Tankless Water Heater Pressure Relief Valve. Installing the ports will require a larger investment upfront, but overall, the task will be simpler since you'll no longer need to remove the electric heat elements. Turn on several hot water faucets and let the water run for about five minutes to flush out the vinegar and clear any air pockets from the line. Pour four gallons of undiluted virgin food-grade white vinegar into the bucket. (similar to those used on intake water lines of washing machines) This screen is the last line of defense to keep particles from entering the water flow sensor housing and inhibiting the use of the heater. Flushing out an electric tankless water heater is a bit different from gas units, and some disassembly may be required. Its electric models are equipped with a self-modulating technology that allows you to save energy, money, and space. However, the hardness  of your water plays a part in this, and you may find it better to flush two to three times per year if your home’s water is especially poor quality. Open the cold water shut-off valve to flush out any remaining vinegar through the second hose into your bucket for about ten minutes. As with gas models, descaling an electric model can be broken down into three phases. The flush kit connects easily to the tankless service valves. Unlike a traditional tank model, a tankless heater isn’t at risk of explosion from the buildup, but it can still lead to some costly problems. Remove the cold water inlet filter and flush it under a cold tap to remove any debris. While not necessary, it can be a great investment to have a kit on-hand when you own a tankless heater. We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites. Allow the vinegar to sit in the chamber for 90 minutes to two hours. Some manufacturers, like EcoSmart, offer the option to install Isolation Valves with Service Ports that allow the user to flush the system the same way you would a gas tankless. Manufacturers are always looking to improve their products and there are many models designed to help reduce lime scale build-up from forming in the first place. Allow the water to finish draining and remove the second hose. If you want to maintain the top performance, efficient heating and long life of your tankless unit, simple cleaning and flushing out the limescale and sediment buildup is the way to go. Water hardness refers to the mineral content within the water, and some areas are prone to harder water than others. Flush out any sediment and debris from the filter housing. Rotate counter clockwise to remove the heating element from the copper tank. Problems with Tankless Water Heater Temperature. Do Tankless Water Heaters Need Maintenance? How Often Should You Flush a Tankless Water Heater? Tankless water heaters have high-powered burners that can heat water very quickly as it runs through the heat exchanger. Tankless water heater require flushing every 6 months to a year. Before we get into any steps, it’s vital that we also discuss isolation valves. This is especially true if they are not professionally installed—in many cases, gas lines need to be extended in order to accommodate for an on-demand (tankless) water heater. (All tankless water heaters use a cold water inlet filter. Close (turn off) the three water valves attached to your tankless water heater. Learn More. A sediment trap or softener can help with hard water to a point. It can provide between 3.6 and 8.7 gallons-per-minute depending on the inlet water … Please read why it's important to check your owner's manual here. Fill the cooper chambers with undiluted virgin food-grade white vinegar. Bosch offers an O-ring kit that can be purchased. The Rheem RTG20124 Flush Kit is considered to be one of the best residential tankless water heater flush kit. Disconnect the electrical power going to the heater. As an Amazon Associate we earn from qualifying purchases. Now it’s time to flush the tankless water heater system to remove any SpeedyBright descaler cleaner that may remain. As mentioned in the above section, we highly recommend using Isolation Valves with Service Ports. Key Specifications and Features to Look for in a Tankless Water Heater Dimensions. Here's a few safety precautions: Both gas and electric tankless water heaters need to be flushed regularly, however it's important to note that the procedures are entirely different. See Also: How to Descale a Tankless Water Heater. Works great and easy to setup and use. Turn the Submersible Pump OFF and dispose of the vinegar. While the tank is filling, check for leaks. Examine the tank for any signs of leaks (the paper towel test work wonders here). Gas systems are more complex. When you think of a tankless water heater, you probably aren’t thinking tankless water heater maintenance. Connect hoses to both of these ports. Tankless water heater maintenance is a must and should be done at least once a year. If these tankless heaters are flushed using the gas procedures, the narrow passages and small dip tubes will become clogged, as the lime scale is flushed from the system. Be careful, as the hot water will be hot. Allow the vinegar to circulate through the heater for a minimum of one hour (longer if the pump runs at less than four gallons per minute). Do NOT dilute the vinegar. You can see the difference once you start using it. Remove the cover and double check that no electricity is reaching the unit by using a. Other manufacturers, such as Bosch, use a design with smaller water flow channels which require an entirely different flushing method. These valves come in a variety of shapes, but they all boil down to two basic types: rotary movement (such as a ball or butterfly valve) and linear (ex: glove or diaphragm valves). If your water is hard, install a water softener if you do not already have one. Ignition Failure. Flushing will require a big bucket to put the pump in, as there’s no simple drainage option as there is with the average tank model, hence the need for a submersible model pump. Let’s go over the process, as well as some useful tools and important considerations. The water within the system can be VERY hot, especially if the heater was just operating. Regular use helps maintain a healthy tankless water heater. Navien Tankless Water Heater Reviews (Updated 2020) 20 Best Tankless Water Heater Reviews – Ultimate Buying Guide 2020 10 Best Electric Tankless Water Heater 2020 All EZ Tankless water heaters have a screen inside the water inlet side of the heater. Unlike a tank heater, you don’t have large volumes of water to sweep up and pull the sediment out, so having a quality pump such as the 91250 from Superior Pump will save hours, if not days, of manual flushing. That’s why it’s important to know first why and when it’s needed, then how to flush a tankless water heater, be it gas or electric. Remove the screws which secure the wires to the heating elements. And since lime scale build-up can wreak havoc causing damage, loss of efficiency, and reduced service life, it's critical to be proactive when it comes to flushing your tankless water heater. Allow the vinegar to soak inside the chambers for 90 to 120 minutes. Locate and close the gas isolation valve. As a general rule, your tankless water heater should be flushed once per year to maintain efficiency. The three top brands for gas tankless models are Rinnai, Rheem, and Noritz. Remove the access panel and use a non-contact voltage tester to make sure there’s no longer power leading to the terminal. Another great tool is a good flush kit. EcoSmart Tankless Water Heaters. Place the free end of the hot water hose into the bucket. Often, this issue is … Tankless Water Heater Maintenance. This can significantly shorten the lifespan of this component, as well as cause a marked increase in your utility bills. Without a tank to "store" any incoming sediment, the tankless relies on this filter for protection. Flushing your tankless water heater is an important maintenance task to keep your system operating at peak performance, but before starting, you'll need to get your supplies together. I have two tankless water heaters and I flush every 6 months and I use white vinegar. Close the cold water service port and remove the attached hose. Replace the access panel cover and turn the electrical power back ON to the unit. Simply locate the appropriate water heater sizes on eComfort using your information. Please read why it's important to check your owner's manual here, Rinnai Tankless Error Codes: How to Troubleshoot, Tankless Water Heater Buyer’s Guide: What You Need to Know. Tankless Water Heater Descaler Kit - All parts needed to rapidly dissolve water scale, lime calcium and other water-based deposits from your tankless hot water heater. Learn how to protect your tankless from hard water. Most manufacturers recommend annual flushing, but it should be noted that ultimately, the flushing frequency needs to be determined by the hardness of your water. Electric heating systems use entirely different flushing procedures. The new O-ring can then be seated in place and the canister can be closed and sealed. Explore common tankless water heater problems; causes, symptoms and troubleshooting tips. Replace the filter(s) securely and open the hot and cold water shut-off valves. How Often Should a Tankless Water Heater Be Flushed? If it is … Compared to traditional water heaters, tankless water heaters are cheaper and more efficient to run. Using a screwdriver, secure the wires to the top of the heating elements. One important note, these are only for gas tankless water heaters. If the tankless water heater is gas, then shut off the gas supply. The heat exchanger is especially sensitive to scale. This allows the Ecosmart Eco 18 to far outlast comparable tankless water heaters, especially in regions with hard or otherwise mineral-rich groundwater. A tankless water heater's only line of defense from sediment is the inlet filter, which is a small mesh screen that filters the water before it enters the unit. Depending upon the manufacturer and whether you had a technician do the installation, your tankless heater may or may not have an isolation valve installed. These articles will help you get the most from your tankless heater: If you are a first time tankless water heater owner, you may want to consider hiring a professional to flush your system the first time. You'll be able to observe, ask questions, and take notes. Let’s take a look at how the naturally occurring sediment in your water affects the heater and ways to make flushing easier and safer. Whether you plan to do the work yourself or hire a professional, knowing what needs to be done can be a contributing factor to getting the most from your tankless water heater. Allow … Although, this article will deal specifically with flushing your tankless water heater, we highly recommend that you read our other articles that cover caring for your system. Once you have your total flow rate and the required temperature rise, you can find the right-size tankless water heater for your home. This is the gunk that can ruin a water heater over time. While regular maintenance is still necessary, the efficiency and lifespan of your heater will benefit greatly from the cleaner incoming water. The flushing procedures below are for electric tankless water heaters. Disconnect the electrical power to the tankless water heater. Turn off the electrical circuit for the water heater at the breaker panel. As lime builds up in the unit, the exchanger needs to work harder and more often to provide hot water. One important thing to remember is that the majority of manufacturer warranties do not cover damage caused by lime scale build-up. Although, we highly recommend having a professional check your unit annually, the flushing task is not too difficult and can save you money if you do it yourself. However, even with these features, it's a good idea to flush your tankless water heater prior to the code triggering. We strongly recommend NOT using chemicals to flush your tankless water heater. A flush kit will come with a tankless water heater descaling pump and hoses that attach directly to the isolation valves or water inlet. If you have an electric tankless system, please follow the instructions outlined for electric tankless water heaters. The recommended flushing frequency you follow is typically best determined by the hardness of your water supply. Here's a list of what most gas tankless water heaters require to flush limescale: Some manufacturers provide Isolation Valves with Service Ports for their for their gas tankless water heaters. They also require far less maintenance or space to operate. This breaks down the scale and flushes out the sediment. 4. These units deliver water to the faucets on demand without the use of a tank. Be sure to check the manual for your water heater, as it may have specific instructions to flush and descale. They are a worthwhile investment that you won't regret. A cracked element should be immediately replaced. The first step is you need to turn off the gas line valve. Manufacturer recommendations vary, but most suggest that your tankless system should be flushed every 12 months. Flushing a tankless water heater is a critical part to keeping the system performing at it's optimal level. You can flush out a tankless hot water heater in about one hour. Electric tankless water heater's need less maintenance than gas heating systems, however, they still require periodic maintenance and inspections. Close the cold water shut-off valve. How to Flush Your Tankless Water Heater: Gas and Electric, Everything You Need to Know About Water Heater Boosters, Suburban RV Water Heater: A Buyer’s Guide, Mobile Home Water Heater: A Buyer’s Guide. Inspect the heating elements for any signs of damage. There will be both a cold water service port and hot water service port. While the tank is filling, check for leaks. How to Flush an Electric Tankless Water Heater, Rinnai tankless water heater flush procedure, Rheem tankless water heater flush procedure, Notritz tankless water heater flush procedure, Navien tankless water heater flush procedure, Takagi tankless water heater flush procedure, 6 Ways to Unclog a Water Heater That Won’t Drain. Hot water—whenever and wherever you want it—is one of life’s many comforts. It's safe, environmentally friendly, inexpensive, and very effective. One of your best friends for flushing a tankless water heater is a submersible pump. Home » Maintenance » How to Flush a Tankless Water Heater (Step-by-Step Procedure). Use a wrench to loosen the hexagon brass top of the heating element. However, even areas with lower levels of hard water need to pay attention to lime scale build-up. With the proper care, a tankless water heating system can have a service life of up to 25 years and save you money every month in utility expenses. The key focus of EcoSmart is the area of the water heater. Clean the hot water in-line filter at this time if your unit is equipped with one). If not flushed properly, the tankless unit could be damaged and require service/repair. Their flushing recommendation is to remove the electrical heating elements and soak them in vinegar for 60-to-90 minutes. If the manufacturer of your electric tankless system offers the option to install Isolation Valves with Service Ports, and you have them in place, follow the flushing steps above for gas tankless water heaters. About EcoSmart. Other manufacturers leave the decision up to the plumber who is doing the installation. Many of the maintenance tasks necessary to keep your tankless system running at peak performance can be completed by the homeowner. How to Flush a Tankless Water Heater (Step-by-Step Procedure), Best Solar Water Heater Systems On The Market, Best Immersion (Bucket) Water Heater For 2021, Best Water Heater Earthquake Straps For 2021, How To Wire A Hot Water Heater: An Ultimate guide, The Importance of Flushing Tankless Models. Just set the valve perpendicular to the gas … Vinegar is a safe and effective cleaning agent and is environmentally friendly. They are still prone to malfunctions. This will break up any scale on the elements. Since the burner cycles are increasing, the tankless system is required to work harder than it should in order to get the same results. The term is essentially synonymous with a shut-off valve. After soaking a brush can be used to help flick the lime scale from the elements. These kits generally include everything you need, such as a pump, bucket, descaler, and hoses. It requires less space and fewer maintenance. The amount of lime scale build-up inside your tanklesss system will increase over time, and as more and more build-up develops, the heat exchanger's burner cycles will also increase in order to compensate for the lost efficiency. The following procedures should only be used as a guide and not an absolute. It'll be money well spent and you'll have the peace of mind that you'll know exactly how to perform the tasks in the future. Shut off the main gas or turn off the circuit breaker for electrical devices. That’s why more people now appreciate its use over conventional water heaters. Flush the cold water inlet filter with tap water. Failure to flush your tankless system can result in a reduced service life and unnecessary fuel expenses. Connect the cold water hose to your pump. As a tankless solution, you save up to 50% on water … Always check your owner's manual for specific instructions regarding your tankless water heater model. Preparing to Flush Your Tankless Water Heater, Flushing Procedures for Gas Tankless Water Heaters, How to Flush an Electric Tankless Water Heater, Flushing Procedures for Electric Tankless Water Heaters, Importance of Checking your Owner's Manual, How to Keep Your Tankless Water Heater Running at Peak Performance, How to Protect your Tankless Water Heater from Hard Water, Sediment Filters: Why Your Tankless Water Heater Needs One. Fill the 5-gallon bucket containing the submersible pump with 4-gallons of virgin, food grade, white vinegar. Close the access panel and restore power at the breaker. This prevents cold water from flowing into the water heater and hot water from coming out during the cleaning process. From your stove to toilet, a wide range of items in your house have some form of isolation valve installed for maintenance or emergency purposes. In general, electric tankless water heaters have a higher energy efficiency; in the case of EcoSmart the energy efficiency is 99.8%. Open the hot and cold service ports and turn the pump on. The Ecosmart is one of the most popular brands of water heaters due to its tankless technology which supplies you with endless running hot water. Locate the hot and cold shut-off valves and close them to prevent any water getting into the unit while you work. An excellent one that I recommend is J.C. Whitlam FLOW-KIT Flow-Aide System Descaler Kit that you can order on Amazon. Learn how to protect your tankless from hard water. Tankless water heaters are not immune to problems. Remove the cold water inlet filter and (if present) hot water in-line filter. Turn OFF the electrical power to the tankless unit at the breaker. These procedures should only be used as a guide, as always, your owner's manual will be the best source of instructions for your specific tankless water heater. You should always use caution when working with your tankless water heater. Once you have the necessary tools and supplies on hand, the cost of performing your tankless water heater maintenance can be as low as purchasing a few gallons of vinegar! It comes with a 32-ounce bottle of FLOW-AIDE. EcoSmart’s patented, self-modulating, tankless water heating technology delivers hot water instantly—and for as long as you need it. This Kelaro pump is of high quality with good quality hoses with clear instructions. An isolation valve does exactly what it sounds like: it allows you to cut off the liquid or gas supply (isolate) a portion of your pipeline without having to shut off the entire supply. Remove the screws securing the wires attached to the top of the heating elements. If this happens, professional repair will most likely be necessary. If any are cracked, they should be replaced. Flush the filters at a sink to remove any trapped sediment. EcoSmart tankless water heaters are like any tankless or conventional tank water heaters. Below, we've highlighted what size water heater you would need in our example of 6.5 GPM at a 63° F temperature rise. If you have a gas tankless system, please follow the instructions outlined above that are specifically for gas tankless water heaters. 4-gallons of virgin, food grade white vinegar. Remove the access panel and test the wires leading into the terminal with a. If your local water’s hardness exceeds 8 grains per gallon, you may need to install a water filter prior to installing the water heater. Shut off the electrical power at the breaker. Store the heating elements in the cooper chambers of the heater so that they can also be cleaned. Rheem RTG20124 Flush Kit – Tankless Water Heater Flush Kit. Pressure-relief valves are an essential component of tankless water heaters. Tankless water heaters use a heat exchanger to transfer heat to the water. Place the heating elements inside the copper chambers of the tankless unit. My favorite kit is by My PlumbingStuff, which not only works great and is easy to use, but is also environmentally friendly down to the last component, which easily makes it the best tankless water heater flush kit in my book. Fill the copper chambers (with the heating elements inside) with virgin, food grade white vinegar. Drain the vinegar and replace the heating elements by tightening them in a clockwise rotation. Lot cheaper than calling a plumber to flush. Once connected you can run a solution of water and vinegar to clean the heat exchanger of any scale deposits. Drain the water from the tankless unit by opening the faucets inside your home. Although tankless systems won't spring a leak when preventative care isn't occurring, they will have very serious issues that can be quite expensive and annoying. Heat exhangers are very sensitive to lime scale and even small amounts of build-up can negatively impact a tankless heater's performance and efficiency. Besides lowering the efficiency of the heater, this will also negatively impact the service life of the heat exchanger and ultimately the tankless water heater. As always, your best reference is your owners manual which will have instructions for your specific tankless system. Close the cold water service port and remove the attached hose Open the cold water shut-off valve to flush out any remaining vinegar through the second hose into your bucket for about ten minutes. Open the Hot Water Shut-off Valve. In all cases, tankless water heaters must be property vented. Hard water contains minerals which can lead to lime scale build-up. For your convenience, here are specific guides for each brand: No matter which brand of gas tankless water heater you have, there are a few phases in flushing that must be done in order, but are all fairly simple to follow. Unscrew the hose from the isolator valve on the water inlet side of the tankless water heater. The harder the water, the more frequently you should flush. Replace the heating elements and re-secure the wires. Some manufacturers also use a hot water in-line filter. Shut off the power supply. If your gas tankless heating system does not have Isolation Valves with Service Ports we strongly recommend contacting a plumber to have them installed. Open the cold water shut-off valve and let the tank fill. Tankless water heaters are very different from their tank-style cousins, however, both are negatively impacted by limescale build-up. Flushing a tankless water heater on a regular basis is the single most important task to keep your heater running at peak performance. Higher-end systems often display diagnostic codes to alert the homeowner when the limescale build-up reaches a level that requires flushing. Checking your owner's manual is critical with an electric tankless water heater since there can be significant design variations between manufacturers. Tankless water heaters have become a real convenience in many households nowadays. Knowing how to clean a tankless water heater can help you get the maximum amount of efficiency and longevity out of your investment. Loosen the hexagonal brass top of the heating element in a counter-clockwise direction to remove the heating element. Size and shape can influence your specific tankless water heater model choice. The amount of time recommended to circulate the vinegar varies between manufacturers, but as a general rule of thumb, longer is better. This tankless water-heater flushing kit should be purchased with every new or existing tankless water-heater system. ECOSMART ECO 36 is a 36-kilowatt tankless ECOSMART ECO 36 is a 36-kilowatt tankless electric water heater ideal for providing hot water for apartments, condominiums, townhomes and other whole home applications. Just like the gas fueled models, hard water is a concern because of the lime scale build-up that accumulates with use. Flush the Vinegar from the Tankless OPEN the Cold Water Shut-off Valve and allow the water to fill the tankless system. Flushing tankless water heaters – a simple step-by-step guide. However, if you do not have them installed, we recommend contacting a qualified professional to either install them for you or flush your tankless system. Anyone who’s owned a regular water will be familiar with the need to flush the tank occasionally as a means of eliminating sediment. In the event your heater lacks this feature, we strongly urge you to get one installed and hire a professional to flush in the meantime, as it can be a major safety factor when you’re performing a flush or other maintenance. Sure to check your owner 's manual is critical with an electric tankless water heater for specific! Cold shut-off valves the access panel and use a design with smaller water flow channels which require an different... Submersible pump cause a marked increase in your utility bills properly, more! 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