Fill the cooper chambers with undiluted virgin food-grade white vinegar. 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. (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. This prevents cold water from flowing into the water heater and hot water from coming out during the cleaning process. Turn the Submersible Pump OFF and dispose of the vinegar. Turn OFF the electrical power to the tankless unit at the breaker. Ignition Failure. 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. The Rheem RTG20124 Flush Kit is considered to be one of the best residential tankless water heater flush kit. Save my name, email, and website in this browser for the next time I comment. Compared to traditional water heaters, tankless water heaters are cheaper and more efficient to run. You'll be able to observe, ask questions, and take notes. It can provide between 3.6 and 8.7 gallons-per-minute depending on the inlet water … Clean the hot water in-line filter at this time if your unit is equipped with one). 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. Be careful, as the hot water will be hot. Learn More. Always check your owner's manual for specific instructions regarding your tankless water heater model. Its electric models are equipped with a self-modulating technology that allows you to save energy, money, and space. The three top brands for gas tankless models are Rinnai, Rheem, and Noritz. They are a worthwhile investment that you won't regret. 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. 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. If the tankless water heater is gas, then shut off the gas supply. Other manufacturers, such as Bosch, use a design with smaller water flow channels which require an entirely different flushing method. Close (turn off) the three water valves attached to your tankless water heater. Regular use helps maintain a healthy tankless water heater. Remove the access panel and use a non-contact voltage tester to make sure there’s no longer power leading to the terminal. Often, this issue is … If you have an electric tankless system, please follow the instructions outlined for electric tankless water heaters. Tankless water heater require flushing every 6 months to a year. 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. 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. Many of the maintenance tasks necessary to keep your tankless system running at peak performance can be completed by the homeowner. Size and shape can influence your specific tankless water heater model choice. Remove the cold water inlet filter and (if present) hot water in-line filter. Replace the access panel cover and turn the electrical power back ON to the unit. 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. Their flushing recommendation is to remove the electrical heating elements and soak them in vinegar for 60-to-90 minutes. As a tankless solution, you save up to 50% on water … 4-gallons of virgin, food grade white vinegar. 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. This Kelaro pump is of high quality with good quality hoses with clear instructions. Flushing out an electric tankless water heater is a bit different from gas units, and some disassembly may be required. Open the hot and cold service ports and turn the pump on. Another great tool is a good flush kit. Key Specifications and Features to Look for in a Tankless Water Heater Dimensions. 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. In general, electric tankless water heaters have a higher energy efficiency; in the case of EcoSmart the energy efficiency is 99.8%. We strongly recommend NOT using chemicals to flush your tankless water heater. 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. If any are cracked, they should be replaced. 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. Flush out any sediment and debris from the filter housing. Hard water contains minerals which can lead to lime scale build-up. The heat exchanger is especially sensitive to scale. Knowing how to clean a tankless water heater can help you get the maximum amount of efficiency and longevity out of your investment. Shut off the electrical power at the breaker. 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. 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. The flushing procedures below are for gas fueled tankless water heaters. 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. 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. Once you have your total flow rate and the required temperature rise, you can find the right-size tankless water heater for your home. Tankless water heaters are very different from their tank-style cousins, however, both are negatively impacted by limescale build-up. Below, we've highlighted what size water heater you would need in our example of 6.5 GPM at a 63° F temperature rise. EcoSmart, as its name suggest, aims to provide energy-efficient and smart technology tankless water heaters for people from all over the world. 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