BS EN 303-5. Central-Heating boilers. Part 5. Heating boilers for solid fuels, hand & automatically stoked, nominal heat output of up to 500 k W. Terminology requirements, testing & marking Boilers, Heating equipment, Hot-water boilers, Solid-fuelled devices, Wood, Fossil fuels, Terminology, Drawings, Production, Welded joints, Welding, Thickness, Safety measures, Performance, Draughts, Emission, Combustion, Pressure testing, Temperature, Thermal output, Designations, Steels, Testing conditions, Iron, Burst tests, Efficiency, Sampling equipment, Filters