Harmonized System
Section XVI > Chapter 84 > Heading 8402 > 8402.20
Super-heated water boilers
Section XVI > Chapter 84 > Heading 8403
Central heating boilers other than those of heading 84.02.
Section XVI > Chapter 84 > Heading 8404
Auxiliary plant for use with boilers of heading 84.02 or 84.03 (for example, economisers, super-heaters, soot removers, gas recoverers); condensers for steam or other vapour power units.
Section XVI > Chapter 84 > Heading 8404 > 8404.10
Auxiliary plant for use with boilers of heading 84.02 or 84.03
Section XVI > Chapter 84 > Heading 8404 > 8404.20
Condensers for steam or other vapour power units
Section XVI > Chapter 84 > Heading 8405
Producer gas or water gas generators, with or without their purifiers; acetylene gas generators and similar water process gas generators, with or without their purifiers.