How to Maintain a tankless water heater.

Tankless water heaters are now designed to last 20- 30 years. This is done by 1 owning a high quality tankless water heater, and 2 preforming a little maintenance on it. Without maintaining your tankless water heater investment you might only get half that time, so be sure to protect your investment by having a plumber thoroughly flush the tank out at least once per year.

Water qualities are different all over the country, and even “good” water has minerals in it that over time will build up on the interior walls of the tanks heating chambers. The industry standard recommendations are Once per year (twice per year with well water) the tankless water heater should be turned off, and flushed out for 45 minutes.

For you do it yourselfers!

What you need:

5 gallon bucket
2 small hoses
2.5 gallons of white vinegar
sump pump
electrical extension cord.

Shut gas, and or electric power off.
Turn off the water valves, both entering into the tank, and the other valve going into the house.
Relieve pressure that’s in the tank by pulling tap open on pressure relief valve, which is made of brass
Hook 1 small hose from the sump pump discharge hose hook up to the inlit side (cold water side) of your tankless water heater.
Hook the 2nd small hose to the out “side” (hot water side), and put the other end of the hose in the bucket with the sump pump. Hooking the hoses up in this matter creates a “loop”, and can that point you.
Put the vinegar in the bucket with the sump pump.
Plug in the sump pump, and if you have all the shut off valves positioned correctly (2 open, 2 closed) to allow the vinegar to flow threw the tankless water heater, and back into the bucket continuously, (not into the house). you got it. Let the pump flush out the tank with white vinegar for about 45 minutes.

That’s it. Their isn’t any other maintenance that needs to be done with your tankless water heater.

If a picture is worth a hundred words, this video is worth that at least. It’s not as through as I’d like, but until I up load my own video this will do nicely.

Maintaining a Tankless Water Heater: video

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