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Since 1 january 2013 gas engineers who are unable

Since 1 january 2013, gas engineers who are unable to visually inspect the length of your boiler flue should advise you that it's 'at risk' and will ask your permission to turn it off, to ensure they comply with industry guidance this may occur if you call in an engineer to service or repair your boiler. The fitter will need to convert your system from an open-vented setup to a sealed one this.

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