Product classification
HS code for Superheated water boilers: 8402.20
Boilers, super-heated water boilers.
Classification of superheated water boilers under HS 8402.20
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.
- Covers
- Industrial superheated water boilers
- High-pressure hot water generators
- Pressurized water heating systems for industrial processes
- District heating superheated water units
- Also under 8402.20
- Danstoker superheated water boilers
- LOOS (Bosch Industriekessel) hot water boilers
- Viessmann large hot water boilers
- Babcock Wanson thermal fluid heaters (water-based)
Codes often confused with 8402.20
Common mistake. 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.
Top exporters and importers of HS 840220 (the code used for superheated water boilers), 2025
In 2025, the largest exporter of HS 840220 (the code used for superheated water boilers) in UN Comtrade data was France, with 51% of world exports; the largest importer in UN Comtrade data was Kazakhstan, with 31% of world imports. Countries that did not report 2025 data are estimated from partner records, which can understate them.
Figures cover everything classified under HS 840220, not only superheated water boilers.
Top exporters 2025 · share of world exports
- 1 France $143M 51% of world exports
- 2 Germany $40M 14% of world exports
- 3 Canada $17M 6.2% of world exports
World total: $277M Reported figures on UN Comtrade ↗
Top importers 2025 · share of world imports
- 1 Kazakhstan $84M 31% of world imports
- 2 Germany $32M 12% of world imports
- 3 Indonesia $22M 8.4% of world imports
World total: $269M Reported figures on UN Comtrade ↗
How these figures are built
109 countries reported 2025 trade to UN Comtrade in HS 2022, and their own totals are used. Countries that did not report are estimated from what other countries recorded trading with them. Those estimates miss trade with other non-reporting countries, so they can be low, and a non-reporting country can rank higher than shown or be missing from the list. World totals add both and leave out trade between two non-reporting countries. Figures are in current US dollars; reported imports are mostly valued CIF and exports FOB, and exports include re-exports. The UN Comtrade links show the underlying records; they can also list a few reporters left out here (regional groups and older HS editions).
Source: UN Comtrade (United Nations Statistics Division), 2025 annual data.
Brazil NCM code for superheated water boilers
Brazil classifies superheated water boilers under NCM 8402.20.00: HS 8402.20 with 00 added.
Source: Siscomex NCM table, updated Oct 2026. The Portuguese text on each NCM page is the official one.
Questions about superheated water boilers
What is the HS code for Superheated water boilers?
The HS code for Superheated water boilers is 840220 (Boilers; super-heated water boilers). The HS code for superheated water boilers is 8402.20.
How do I classify Superheated water boilers for customs?
Superheated water boilers is classified under HS code 840220 — Boilers; super-heated water boilers. This is a 6-digit subheading level code.
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.
Which countries are the top exporters of superheated water boilers (HS 840220)?
In 2025, the top exporters of HS 840220 (the code used for superheated water boilers) in UN Comtrade data were France ($143M, 51% of world exports), Germany ($40M) and Canada ($17M). World exports came to about $277M, adding countries' reported figures and partner-based estimates for those that did not report (UN Comtrade data). Countries that did not report 2025 data are estimated from partner records, which can understate them.
Which countries are the top importers of superheated water boilers (HS 840220)?
In 2025, the top importers of HS 840220 (the code used for superheated water boilers) in UN Comtrade data were Kazakhstan ($84M, 31% of world imports), Germany ($32M) and Indonesia ($22M). World imports came to about $269M, adding countries' reported figures and partner-based estimates for those that did not report (UN Comtrade data). Countries that did not report 2025 data are estimated from partner records, which can understate them.
Is the HS code for Superheated water boilers the same in all countries?
The base HS code 840220 for Superheated water boilers is internationally standardized for the first 6 digits across 200+ countries. Individual countries may add additional digits for national tariff lines and specific classifications.
What is the NCM code for superheated water boilers in Brazil?
In Brazil, superheated water boilers (HS 840220) is classified under NCM 8402.20.00.