Section 16 MACHINERY AND MECHANICAL APPLIANCES; ELECTRICAL EQUIPMENT; PARTS THERE OF; SOUND RECORDERS AND REPRODUCERS, TELEVISION IMAGE AND SOUND RECORD ERS AND REPRODUCERS, AND PARTS AND ACCESSORIES OF SUCH ARTICLES 84 Nuclear reactors, boilers, machinery and mechanical appliances; parts thereof 84 02 Steam or other vapour generating boilers (other than central heating hot water b 84 02 11 84 02 11 00 Commodity Code Description 84 02 11 00 00 -- Watertube boilers with a steam production exceeding 45 t per hour 84 02 12 00 00 -- Watertube boilers with a steam production not exceeding 45 t per hour 84 02 20 00 00 - Super-heated water boilers