Do You Annually Flush Your Tankless Water Heater?

Do You Annually Flush Your Tankless Water Heater?

If your home is equipped with a tankless water heater, it is important that you perform annual heater flushes on your unit. With regular use, tankless heaters can develop a lime and scale buildup in the heat exchanger, limiting their effectiveness and potentially causing permanent damage if not properly cleaned. If you have hard water in your home, this procedure may be required semi-annually.

How Do I Know if I Need to Flush My System?

While it is recommended that a tankless heater be flushed once a year, some heaters have features built in that will alert you when a flush is needed. A flush typically takes about an hour to complete, though it involves several different steps and will vary in procedure depending on the specific brand of heater.

Usually, the process involves:

  1. Shutting the power
  2. Connecting a pump to the water isolation valves
  3. Pumping several gallons of white vinegar through the system

While this seems relatively straightforward, there is quite a bit of room for error. This process involves dismantling your heater to a certain degree, making it easy to inadvertently damage many of the fragile inner components. If done improperly, you can damage your system, expose yourself to scalding water burns, and make your home’s water smell and taste like vinegar for weeks. If you are attempting to flush your heater on our own, it is important that you exercise extreme caution and strictly adhere to your heater manufacturer’s recommended flushing procedure. Above all,
never use any sort of chemicals in this procedure, as you can poison your drinking water!

Need to Flush Your Heater? Call (803) 618-4163

At Plumbing Solutions, LLC, our skilled Columbia plumbers can flush your home’s water heater with ease. We are the go-to authority on both tankless and traditional water heaters, and we make sure all of our knowledgeable technicians have up-to-date training and are fully certified for every type of water heater installation and maintenance. Best of all, our quality and professional services are available 24/7 to help you with your plumbing emergencies.
Schedule an appointment online today!