How to Flush a Tankless Water Heater (Step-By-Step Guide) Story

How to Flush a Tankless Water Heater (Step-By-Step Guide)

Flushing a tankless water is an essential maintenance task that you shouldn’t avoid.

Sediment and limescale accumulate in the heater over time. Periodically flushing the system removes impurities, preventing blockages, reduced flow, corrosion, and associated issues.

In this story, we’ve shared how to flush your tankless water heater in 8 easy steps.

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SHUT OFF THE WATER AND GAS SUPPLIES

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BUY A FLUSHING KIT

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CONNECT THE INLET AND OUTLET HOSES

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If your hot water heater doesn’t have isolation valves installed, you’ll need to disconnect and drain it, then attach the hoses directly to the hot and cold connections.

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Ensure the valves and hoses are watertight after connecting (use pliers if necessary) to avoid leaking while you flush the system.

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