BS EN 303-2. Heating boilers. Part 2. Heating boilers with forced draught burners. Special requirements for boilers with atomizing oil burners Boilers, Heating equipment, Oil-fuelled devices, Oil space heating, Central heating, Space-heating systems, Forced-draught burners, Hot-water central heating, Hot-water boilers, Rated power, Performance, Performance testing, Combustion products, Carbon monoxide, Nitrogen oxides, Thermal output, Thermal efficiency, Assembling