The heat exchanger is especially sensitive to scale. Open the cold water shut-off valve and let the tank fill. Locate and close the gas isolation valve. Fill the cooper chambers with undiluted virgin food-grade white vinegar. Save my name, email, and website in this browser for the next time I comment. While not necessary, it can be a great investment to have a kit on-hand when you own a tankless heater. As a general rule, your tankless water heater should be flushed once per year to maintain efficiency. A sediment trap or softener can help with hard water to a point. Designed for tankless water heaters providing >" hot and cold service connections (although compatible with most water operated equipment), the The New Recirculation Pump Kit from Rheem provides immediate hot water using the Tankless water heater controls. Remove the screws which secure the wires to the heating elements. Anyone who’s owned a regular water will be familiar with the need to flush the tank occasionally as a means of eliminating sediment. Close the shutoff valves on hot and cold water lines. Tankless heaters are no exception. The three top brands for gas tankless models are Rinnai, Rheem, and Noritz. One of your best friends for flushing a tankless water heater is a submersible pump. 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. Learn the proper way to flush and maintain a Rinnai Tankless Water Heater. The EZ-FLUSH system has been designed to work seamlessly with Tankless Water Heaters ⦠After viewing product detail pages, look here to find an easy way to navigate back to pages you are interested in. Open your faucets to allow any water to drain from the heater. 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. If your home does not have a dedicated return line, ⦠These units deliver water to the faucets on demand without the use of a tank. These kits generally include everything you need, such as a pump, bucket, descaler, and hoses. This breaks down the scale and flushes out the sediment. 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. Shut off the main gas or turn off the circuit ⦠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. Connect hoses to both of these ports. The Eccotemp EZ-FLUSH System Descaler Kit is the answer to any water scale, lime, or rust deposit build-up in virtually any piece of water based equipment. Open the hot and cold service ports and turn the pump on. Connect the cold water hose to your pump. 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. Flush tankless water heater for 5 minutes or until clear water flow by opening the main water supply, open cold isolation valve and let water pass through hot water valve to drain on the bucket Close hot water service valve and remove hose, replace with cap and open hot isolation valve ⦠This can significantly shorten the lifespan of this component, as well as cause a marked increase in your utility bills. Use the service (isolation) valve and connect the EZ-Flush system to the cold water line (with included hose). Be careful, as the hot water will be hot. necessary to pump and circulate the Calci-Free flushing solution through tankless water heaters to eliminate lime scale and other contaminants Turn off the electrical circuit for the water heater at the breaker panel. Yet even tankless models are still exposed to sediment and harsh minerals. Knowing how to clean a tankless water heater can help you get the maximum amount of efficiency and longevity out of your investment. If the manufacturer of your tankless water heater ⦠How to clean a tankless water heater with a vinegar flush. Complete kit includes 1/6 hp pump, 3.5 gallon pail ⦠This descaler Pump Kit is designed to clean and descale most Tankless Water Heaters. I have a natural gas high-efficiency tankless water heater and found that it should be flushed once a year. Replace the heating elements and re-secure the wires. Locate the hot and cold shut-off valves and close them to prevent any water getting into the unit while you work. Tankless water heaters have high-powered burners that can heat water very quickly as it runs through the heat exchanger. With a dedicated return line, the integrated pump simply recirculates water from the tankless water heater through the line and back to the heater. Hard water contains minerals which can lead to lime scale build-up. Turn off the power source for your tankless water heater. EcoSmart ECO 11 Electric Tankless Water Heater, 13KW at 240 Volts with Patented Self Modulatin⦠Open the cold water shut-off valve to flush out any remaining vinegar through the second hose into your bucket for about ten minutes. Flush the filters at a sink to remove any trapped sediment. Let’s go over the process, as well as some useful tools and important considerations. 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. Circ-Logic Technology allows you to purchase the pump ⦠Close the access panel and restore power at the breaker. Just set the valve perpendicular to the gas ⦠Close the cold water service port and remove the attached hose. Keep your Tankless Water Heater running at full efficiency and ensure it provides hot water for years to come with the Eccotemp EZ -FLUSH System Descaler ⦠HVAC replacement part Rheem RTG20124. Prime members enjoy FREE Delivery and exclusive access to music, movies, TV shows, original audio series, and Kindle books. 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. The My PlumbingStuff Tankless Water Heater Flushing Kit is perfect for maintaining any tankless-style water heater. You can flush out a tankless hot water heater in about one hour. A cracked element should be immediately replaced. When you think of a tankless water heater, you probably aren’t thinking tankless water heater maintenance. Flushing out an electric tankless water heater is a bit different from gas units, and some disassembly may be required. There's a problem loading this menu right now. The first step is you need to turn off the gas line valve. Re: Flushing a Rinnai tankless, recirc pump recommendations; Author: Marksix We use the same Flo-Rite Pony Pump that we use to drain water heaters,and thats probably more pump than is needed.Fishtank or small pond pump ⦠Another great tool is a good flush kit. Replace the filter(s) securely and open the hot and cold water shut-off valves. It includes 5-foot SS hoses, a 32-ounce bottle of FLOW32 Descaler, a Zoeller 42-0007 ⦠Tankless systems use up to 30 to 50% less energy than tank units because they eliminate the need to hold water ⦠You can see the difference once you start using it. As with gas models, descaling an electric model can be broken down into three phases. 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.