Ключевые слова:
Air heaters, Convection heaters, Heaters, Gas-powered devices, Heating equipment, Gas space heating, Commercial, Industrial, Ratings, Rated power, Safety devices, Classification systems, Designations, Marking, Packaging, Design, Control devices, Adjusting devices, Fire safety, Combustion products, Burners, Performance, Performance testing, Ignition systems (heat engineering), Temperature rise, Cut-out devices, Testing conditions, Pressure testing, Leak tests, Environmental testing, Instructions for use, Pipe connections