| Descriptors |
Gas valves, Domestic safety, Temperature-rise limit, Ignition, Pilot flames, Gas-powered devices, Ignition systems (heat engineering), Safety engineering, Marking, Combustion products, Flames, Classification systems, Heat, Flues, Performance testing, Flued heaters, Heaters, Fire safety in buildings, Design, Combustion, Installation, Gas space heating, Test equipment, Manual control systems, Plug valves, Fire risks, Domestic, Automatic control systems, Leak tests
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