Heat exchanger cleaning for Glow-worm boilers

https://youtube.com/watch?v=d7qJNEjX01I

A step-by-step guide for Gas Safe Registered installers to cleaning the heat exchanger on the Glow-worm Energy, Betacom3, Procombi Essential, Easicom2 and Ultimate2 boilers, as part of an annual boiler service.

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