Open the Hot Water Shut-off Valve. Allow the water to finish draining and remove the second hose. Use a wrench to loosen the hexagon brass top of the heating element. Anyone who’s owned a regular water will be familiar with the need to flush the tank occasionally as a means of eliminating sediment. Inspect the heating elements for any signs of damage. Flushing tankless water heaters – a simple step-by-step guide. Close the access panel and restore power at the breaker. 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. A cracked element should be immediately replaced. The key focus of EcoSmart is the area of the water heater. Hard water contains minerals which can lead to lime scale build-up. Flush the cold water inlet filter with tap water. The flush kit connects easily to the tankless service valves. Tankless water heaters run water through small apertures, so it is important that your water quality be at least fairly high. Gas systems are more complex. These kits generally include everything you need, such as a pump, bucket, descaler, and hoses. Place your submersible pump into a five-gallon bucket. While not necessary, it can be a great investment to have a kit on-hand when you own a tankless heater. 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. Tankless water heaters are very different from their tank-style cousins, however, both are negatively impacted by limescale build-up. Size and shape can influence your specific tankless water heater model choice. 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. (All tankless water heaters use a cold water inlet filter. Turn the Submersible Pump OFF and dispose of the vinegar. Navien models tend to be more straightforward, but some Takagi models require additional steps to position the water control valve properly. 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. Locate and close the gas isolation valve. 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. The three top brands for gas tankless models are Rinnai, Rheem, and Noritz. (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. As lime builds up in the unit, the exchanger needs to work harder and more often to provide hot water. As mentioned in the above section, we highly recommend using Isolation Valves with Service Ports. This is the gunk that can ruin a water heater over time. 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. Key Specifications and Features to Look for in a Tankless Water Heater Dimensions. Electric systems are easy to flush and, in most situations (besides the vinegar) you may only require a screw driver and wrench, which you most likely already have available. 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. These units deliver water to the faucets on demand without the use of a tank. 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. They are a worthwhile investment that you won't regret. They also require far less maintenance or space to operate. 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. This can significantly shorten the lifespan of this component, as well as cause a marked increase in your utility bills. 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. Tankless water heater maintenance is a must and should be done at least once a year. Flush out any sediment and debris from the filter housing. Remove the cold water inlet filter and (if present) hot water in-line filter. 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. Remove the cold water inlet filter and flush it under a cold tap to remove any debris. In all cases, tankless water heaters must be property vented. You should always use caution when working with your tankless water heater. Flush the filters at a sink to remove any trapped sediment. They are still prone to malfunctions. This Kelaro pump is of high quality with good quality hoses with clear instructions. Tankless water heaters have high-powered burners that can heat water very quickly as it runs through the heat exchanger. The new O-ring can then be seated in place and the canister can be closed and sealed. Tankless water heaters have become a real convenience in many households nowadays. 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. You can see the difference once you start using it. Ignition Failure. Many of the maintenance tasks necessary to keep your tankless system running at peak performance can be completed by the homeowner. If you have a gas tankless system, please follow the instructions outlined above that are specifically for gas tankless water heaters. 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! 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. 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. Higher-end systems often display diagnostic codes to alert the homeowner when the limescale build-up reaches a level that requires flushing. Open the cold water shut-off valve to flush out any remaining vinegar through the second hose into your bucket for about ten minutes. Sediment. Fill the 5-gallon bucket containing the submersible pump with 4-gallons of virgin, food grade, white vinegar. Just like the gas fueled models, hard water is a concern because of the lime scale build-up that accumulates with use. Using a screwdriver, secure the wires to the top of the heating elements. Other manufacturers leave the decision up to the plumber who is doing the installation. Tankless water heater require flushing every 6 months to a year. Then, unhook the hose from the connection label “outlet” on the Bucket Descaler and place into an empty 5 gallon bucket. A sediment trap or softener can help with hard water to a point. If your water is hard, install a water softener if you do not already have one. Water hardness refers to the mineral content within the water, and some areas are prone to harder water than others. Just set the valve perpendicular to the gas … Open the hot and cold service ports and turn the pump on. Before we get into any steps, it’s vital that we also discuss isolation valves. Regular use helps maintain a healthy tankless water heater. Allow the water to run for 10 minutes, then CLOSE the. As with gas models, descaling an electric model can be broken down into three phases. Shut off the electrical power at the breaker. 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. 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. Navien Tankless Water Heater Reviews (Updated 2020) 20 Best Tankless Water Heater Reviews – Ultimate Buying Guide 2020 10 Best Electric Tankless Water Heater 2020 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. 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. If this happens, professional repair will most likely be necessary. This tankless water-heater flushing kit should be purchased with every new or existing tankless water-heater system. Connect hoses to both of these ports. How to Install a Tankless Water Heater Pressure Relief Valve. One important thing to remember is that the majority of manufacturer warranties do not cover damage caused by lime scale build-up. 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. Tankless systems use up to 30 to 50% less energy than tank units because they eliminate the need to hold water … 4-gallons of virgin, food grade white vinegar. Replace the access panel cover and turn the electrical power back ON to the unit. 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. 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. Simply locate the appropriate water heater sizes on eComfort using your information. There are several reasons your water heater could fail to ignite. Another great tool is a good flush kit. 2. The amount of time recommended to circulate the vinegar varies between manufacturers, but as a general rule of thumb, longer is better. Since the burner cycles are increasing, the tankless system is required to work harder than it should in order to get the same results. While the tank is filling, check for leaks. Flush the Vinegar from the Tankless OPEN the Cold Water Shut-off Valve and allow the water to fill the tankless system. 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. Open the purge port valves by twisting them perpendicularly to the position of the cold and hot valves. Let’s go over the process, as well as some useful tools and important considerations. There will be both a cold water service port and hot water service port. The first step is you need to turn off the gas line valve. 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. 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. Tankless heaters are no exception. 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. 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. See Also: How to Descale a Tankless Water Heater. Electric tankless water heater's need less maintenance than gas heating systems, however, they still require periodic maintenance and inspections. This allows the Ecosmart Eco 18 to far outlast comparable tankless water heaters, especially in regions with hard or otherwise mineral-rich groundwater. 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. 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. Once connected you can run a solution of water and vinegar to clean the heat exchanger of any scale deposits. 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. Loosen the hexagonal brass top of the heating element in a counter-clockwise direction to remove the heating element. You'll be able to observe, ask questions, and take notes. 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. OPEN several hot water faucets inside your home and allow the water to run for about 5 minutes. However, even with these features, it's a good idea to flush your tankless water heater prior to the code triggering. This breaks down the scale and flushes out the sediment. Shut off the main gas or turn off the circuit breaker for electrical devices. Remove the cover and double check that no electricity is reaching the unit by using a. Do NOT dilute the vinegar. It can provide between 3.6 and 8.7 gallons-per-minute depending on the inlet water … Learn More. 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. Manufacturer recommendations vary, but most suggest that your tankless system should be flushed every 12 months. Remove the screws which secure the wires to the heating elements. Works great and easy to setup and use. 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 water heaters are not immune to problems. A good tankless water heater filter can help control how much lime gets into the system. 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. Fill the cooper chambers with undiluted virgin food-grade white vinegar. Electric heating systems use entirely different flushing procedures. 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. Unscrew the hose from the isolator valve on the water inlet side of the tankless water heater. The flushing procedures below are for electric tankless water heaters. EcoSmart’s patented, self-modulating, tankless water heating technology delivers hot water instantly—and for as long as you need it. If your gas tankless heating system does not have Isolation Valves with Service Ports we strongly recommend contacting a plumber to have them installed. 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. Rheem RTG20124 Flush Kit – Tankless Water Heater Flush Kit. Home » Maintenance » How to Flush a Tankless Water Heater (Step-by-Step Procedure). Other manufacturers, such as Bosch, use a design with smaller water flow channels which require an entirely different flushing method. Open the cold water shut-off valve and let the tank fill. Don't guess, find out when and how to flush your tankless heater. Below, we've highlighted what size water heater you would need in our example of 6.5 GPM at a 63° F temperature rise. Close (turn off) the three water valves attached to your tankless water heater. EcoSmart, as its name suggest, aims to provide energy-efficient and smart technology tankless water heaters for people from all over the world. This will break up any scale on the elements. Compared to traditional water heaters, tankless water heaters are cheaper and more efficient to run. Remove the access panel and use a non-contact voltage tester to make sure there’s no longer power leading to the terminal. Do Tankless Water Heaters Need Maintenance? Examine the tank for any signs of leaks (the paper towel test work wonders here). Allow … Its electric models are equipped with a self-modulating technology that allows you to save energy, money, and space. If any are cracked, they should be replaced. An excellent one that I recommend is J.C. 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