Tankless Water Heater Flushing: Why Annual Maintenance Matters in North Texas

Tankless water heaters are a great investment, but they do require regular maintenance to keep them running properly. In this video, GPS Plumbing in Frisco, Texas explains why flushing a tankless water heater is an important part of protecting the system and preventing costly repairs.

Here in North Texas, our water is considered hard water, which means it contains minerals like calcium and magnesium. Over time, these minerals build up inside the heat exchanger of a tankless water heater. If that scale isn’t removed through regular flushing, it can reduce efficiency, restrict water flow, trigger error codes, and eventually damage the heat exchanger.

Most tankless water heater manufacturers, including Navien, Rinnai, and Bradford White, recommend flushing the unit once a year. Regular maintenance helps remove mineral buildup, keeps the system operating efficiently, and protects the internal components.

Many homeowners are surprised to learn that lack of maintenance can also void the manufacturer’s warranty if damage occurs from scale buildup. Annual flushing is one of the best ways to extend the life of a tankless water heater and avoid expensive repairs down the road.

If your tankless water heater hasn’t been flushed recently, it may be time to schedule maintenance.

GPS Plumbing provides tankless water heater maintenance, repair, and installation for homeowners throughout Frisco, Plano, McKinney, Prosper, Little Elm, Celina, and The Colony.