Descriptors | Chimney terminals, Installation, Visual inspection (testing), Smoke, Household equipment, Position, Leak tests, 2nd family gases, 1st family gases, Ventilators, Chimneys, Gas space heating, Gas-powered devices, Fire safety, Restaurants, Ventilation, Pipe connections, 3rd family gases, Fuel-effect appliances, Hearths, Flues, Heaters, Rated power, Performance testing, Flued heaters, Fire safety in buildings, Bars (refreshment facilities), Chimney-pots, Canopies, Dimensions, Combustion products |