Harmonized System
Section XV > Chapter 73 > Heading 7321 > 7321.1 > 7321.11
For gas fuel or for both gas and other fuels
Section XV > Chapter 73 > Heading 7321 > 7321.1 > 7321.12
For liquid fuel
Section XV > Chapter 73 > Heading 7321 > 7321.1 > 7321.19
Other, including appliances for solid fuel
Section XV > Chapter 73 > Heading 7321 > 7321.8 > 7321.81
For gas fuel or for both gas and other fuels
Section XV > Chapter 73 > Heading 7321 > 7321.8 > 7321.82
For liquid fuel
Section XV > Chapter 73 > Heading 7321 > 7321.8 > 7321.89
Other, including appliances for solid fuel
Section XV > Chapter 73 > Heading 7322
Radiators for central heating, not electrically heated, and parts thereof, of iron or steel; air heaters and hot air distributors (including distributors which can also distribute fresh or conditioned air), not electrically heated, incorporating a motor-driven fan or blower, and parts thereof, of iron or steel.
Section XV > Chapter 73 > Heading 7322 > 7322.1
Radiators and parts thereof