Descaling A Tankless Water Heater

how to descale a tankless water heater

Descaling removes mineral buildup from your tankless water heater, improving efficiency and lifespan. It’s recommended annually for hard water areas.

Steps to Descale Your Unit

First, turn off power and water supply. Connect a descaling pump to circulate a vinegar or descaling solution through the heat exchanger for 45–90 minutes.

  • Turn off power and water
  • Use descaling solution
  • Rinse thoroughly after

Why Regular Descaling Matters

Mineral buildup reduces heating efficiency and can cause damage. Neglecting descaling leads to higher energy bills and potential repairs.

Always follow manufacturer instructions. For complex units, consider hiring a professional to ensure safe and effective descaling.

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