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