HS Code for Superheated water boilers

Superheated water boilers are classified under HS code 8402.20. This code is situated within Chapter 84, which deals with nuclear reactors, boilers, machinery, and mechanical appliances. Heading 8402 specifically covers steam or other vapor generating boilers (other than central heating hot water boilers capable also of producing low pressure steam) and superheated water boilers. Subheading 8402.20 is the specific designation for superheated water boilers. These units are distinct from standard steam boilers because they maintain water in a liquid state at temperatures exceeding its normal boiling point by utilizing high pressure. The classification is based on the mechanical function and the thermodynamic process of the equipment. These boilers are essential in industrial applications where high-temperature heat transfer is required without the phase change to steam. The technical distinction between a boiler that produces vapor and one that produces superheated liquid is the primary driver for this specific HS code assignment.

Products Included

• Industrial superheated water boilers
• High-pressure hot water generators
• Pressurized water heating systems for industrial processes
• District heating superheated water units

Common Misclassification

Superheated water boilers are often confused with 8402.11 or 8402.12, which are for steam-generating watertube or firetube boilers. The key difference is the state of the output (liquid vs. vapor). They are also sometimes misclassified under 8403.10, which is for central heating boilers; however, 8403 is for domestic or commercial space heating, whereas 8402.20 is for high-temperature industrial applications.

FAQ

What is the HS code for superheated water boilers?

The HS code for superheated water boilers is 8402.20.

How does this differ from a standard hot water boiler?

Standard hot water boilers for central heating are under 8403.10, while superheated water boilers (operating at higher pressures/temperatures) are under 8402.20.