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Maintenance Tips for Tankless Water Heaters

There’s a lot of things around us needs a routine maintenance to function properly. Tankless water heaters are high-end technology dependant electric gadgets made to serve the purpose of endless hot water. As per its functionality of heating water when needed, it’s saving lots energy as compared to traditional tank-type water heaters. Because of heating mechanism complexity, tankless water heater requires a regular maintenance. This ensures optimal performance and efficiency during the long run.

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Tankless water heaters often accumulate limescale minerals inside the tank’s heating chamber and heat exchangers which are having narrow water passages. This heat exchanger blockage by limescale can lead to a serious damage to water heaters. To get rid of this unnecessary scenario, the unit is required a regular flushing. During a year it must be flushed once to remove all mineral deposits.

Steps involved in flushing:

Flushing is not complicated process, and if it is done properly the water heater aging stops and it functions as if in complete reset mode like a new one. Here are the steps of flushing a follows:

–        The first step involved is turning off the power source by powering off either gas or the electricity to your tankless water heater.


–        The next step is to close three water valves which are attached to the heater for hot water, cold water, and water to home supply respectively.

–        Find the isolation valve which is used for service, and connect it with flow aide system along with cold water line. The circulation pump here used to force the flushing mechanism.

–        Now it is important to connect the heater to a hose. It can be done simply with the use of another service valve and terminate it to follow appropriate drain bucket.

–        After that, please ensure both the drain hose and pump hose ends in the same bucket as like flow-aide system.

–        Then the next step involves opening both the service valves along with allowing the run of both circulation pump and flushing solution through the unit for approximately an hour.

–        After that it is instructed to power OFF of the pump.

–        Rinse is preferably the next step which comprises the procedure of cleaning all the flushing solution given to the heater. Firstly, it is recommended to open all the shutoff valves on the cold water line and after that close all the service valves involved between the pump and heater. Thus it ensures running through the heater and then through the bucket. The procedure needs 5 mins of time approximately. After that, again opening the shutoff valves and closing the service valves are needed to restore the system as functioning as previous.

–        The next step involves of disconnecting all the hoses around the unit. It is recommended to clean the in-line screen filter to remove any accumulated debris.

–        The final step of flushing is to resume the power and restart your newly functional water heater.


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