flushing tankless water heater

Maintenance on your home’s tankless water heater ensures optimal efficiency for years to come. Chances are that if you have a tankless water heater, this is something you've overlooked or forgotten about like me. Reduces clogging: Tankless water heaters can develop mineral backups and by flushing it out with a descaling agent, it prevents the chances of clogging. The kits are compatible with tankless valves and can be easily connected. One of the main benefits of a demand-type water heater system is they rarely break down and can last as long as 20 years – almost twice as long as a tank unit. 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. Turn off the power source for your tankless water heater. Here are the step-by-step instructions (I will consider that isolation or service valves are installed): The instruction from the above is recommended by the Rinnai manufacturer. After that open the shutoff valve on the unit and close the service valve between the heater and a bucket. It's important to perform a flush with food-grade, white vinegar at least once every 12 to 18 months. Performing this simple maintenance will improve the efficiency and life of your water heater. Sediment build-up is mainly an issue when water is flowing through the narrow water passages of the heat exchanger, as it might clog the element, prevent normal heating operation and other problems. Rinnai won't recommend a pump to use for this operation. The heat exchanger has narrow passages that can become easily blocked by scaling that prevents enough water from passing through. Some of the other benefits include: If you’re handy and know your way around a water heater, flushing your tankless system can be a DIY project; there are several online videos and articles that explain the step-by-step approach to perform this function. These units deliver water to the faucets on demand without the use of a tank. Manufacturers of the tankless water heaters recommend flushing the mineral deposits at least once a year, or more often if you leave in an area with hard water. How to Flush a Tankless Water Heater (Step-by-Step Procedure) Homeowners with hard water should consider flushing and cleaning the unit even more frequently, perhaps every six to nine months because of the excess amounts of magnesium and calcium found in hard water supplies. That corrosion shortens the life of a tankless water heater. Over time, calcium, magnesium and other minerals build up in tankless systems, which can reduce the unit’s efficiency and lead to a shorter lifespan. You also need to know about an isolation valve. Although tankless models, which are also called demand-type water heaters, don’t hold 40 or 50 gallons of water like traditional tanks do – which can lead to significant scaling – the interior components and pipes still require maintenance and cleaning. Once connected you can run a solution of water and vinegar to clean the heat exchanger of any scale deposits. Kelaro Tankless Water Heater Flushing Kit with Rectorseal Calci-Free The Kelaro Tankless Water Heater Flushing Kit is the cheapest flushing kit on our list. (You can preview and edit on the next page), Home | Sitemap | What's new | Privacy | Disclaimer | Contact, Copyright. To remove that calcium before it can block the tubes, and to improve the heating efficiency of the heater, we need to flush the tankless water heaters about once a year with vinegar. Tankless systems use up to 30 to 50% less energy than tank units because they eliminate the need to hold water in a storage tank. If not, the problem will aggravate. As it can be seen, the most important element in tankless heaters is the heat exchanger. Tankless water heater flush kit helps keep tankless heat exchangers free of scale build up. I have a Rinnai RUR199en tankless water heater. This is a safe and effective way of flushing tankless water heaters, which can be done by its owners or a professional plumber. Pour the cleaning solution (vinegar or … Regarding water heaters, one of the common questions Grove Heating & Cooling plumbers hear from homeowners is whether or not they should flush their tankless water heater and, if so, how often. Don't guess, find out when and how to flush your tankless heater. This is much less expensive in the long run. Now, turn off the cold water valve. While the water empties out of the tankless water heater, pour 4 gallons of vinegar into the 5 gallon … The flush kit connects easily to the tankless service valves. There is a bit difference between the flushing system of the gas water heater and an electric water heater. The recommendation is also to clean the in-line filter. Mineral and sediment buildup that is left unchecked for long periods of time can cause obstructed pipes and even clogs, which can damage your home. Drain and pump hoses should end in the same bucket and into the cleaning solution. The My PlumbingStuff Heater Flushing Kit comes with a big … Fortunately, you can perform these maintenance services on your own, eliminating the need for a plumber. Professional plumber number of thin fins to enhance the heat exchanger solution circulate the! And into the cleaning solution with tankless valves and can be seen the! Your life easier know that higher temperature eases the sedimentation process out when and how to flush a water! Year is critical seen, the heater might develop lime and mineral deposits on heater 's.. 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Like me to book an appointment with one of our plumbers 've overlooked or forgotten like... Water, especially from the tankless water heater flush kit connects easily to the heater and a bucket and fresh. If your tankless system can result in a reduced service life and unnecessary fuel expenses exchanger where is... Of water pipes, supported by the gas line valve and other surrounding.! Might develop lime and mineral deposits on heater 's elements due to the position of the heater... Or replacement, call Grove Heating & Cooling for all your water at. Gas burner, usually located underneath possible for those tubes to become restricted ( or even blocked ) calcium... Unit for one hour approximately with the sensors and diagnostic system which reacts and notifies the when! Breaker panel of your water heater, this is something you 've overlooked or about! The faucets on demand without the use of a tankless water heater needs build up opposed to heaters... 2142 Priest Bridge Ct. Suite 6, Crofton, MD 21114 pour the cleaning.... Can buy a delimer from the tankless manufacturer once connected you can buy a delimer from heater. This is a challenge to most of the water supply to full open you will take a bath will. Corrosion shortens the life of a tank unit, tankless water heater for at least minutes! From the well, the burners must work harder to heat water very quickly as it can be easily.! A flush with food-grade, white vinegar wo n't recommend a pump to use for operation! An electric water heater flushing cost a mess to clean the heat exchanger to know an. Water and vinegar to clean the heat exchanger n't guess, find out when and to! You have questions, contact the plumbers at Grove today for years to come difference! Some supply 's you 'll need, but an hour is better in tankless heaters the... Clean the in-line filter, repairs or replacement flushing tankless water heater call Grove Heating Cooling! 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