- Joined
- 10 Jul 2004
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Just been to a noisy O/F Worcester floor standing Highflow, all worked fine, gave it a service, checked flue and gas rate etc, was noisier on hot water, suspected scaled heat exchanger, put in a litre of Sentinel X200, wow, 20 minutes later all quiet, ran off some hot water to check with boiler on full belt, still quiet, excellent, something that does what it says on the tin, for once.