Ключевые слова:
Gas-powered devices, Domestic, Boilers, Hot-water boilers, Hot-water supply systems, Central heating, Domestic safety, Classification systems, Fire safety, Testing conditions, Flues, Design, Maintenance, Performance, Leak tests, Pressure testing, Combustion, Combustion products, Installation, Ignition systems (heat engineering), Flames, Stability, Temperature rise, Thermal testing, Temperature, Control devices, Automatic control systems, Valves, Electrical safety, Marking, Mathematical calculations, Instructions for use, Performance testing, Water heaters, Gas space heating, Test equipment