26:39

ACS Gas Training - Controls - Understanding How Controls Work - Russell Holdsworth

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Ventilation does a modern gas engineer need to know it.

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ACS Gas Training - Installation Faults Q&A

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OPEN FLUED APPLIANCES, part 2 of all gas trainees need to know about gas appliance flues.

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Flue flow test and spillage on an open flue boiler. How to carry out the test.

17:30

ACS Essential - Flue Terminal Types Explained

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Gas boiler flues CORRECT INSTALLATION OF BOILER FLUES PART1, how boiler flues are installed.

21:51

GAS PRESSURES PART 1, a gas tutorial all about standing, working and operating pressures for ga.s.