Product classification
HS code for Hot air heater: 7322.90
Air heaters and hot air distributors, (not electrically heated), incorporating a motor-driven fan or blower and parts thereof, of iron or steel.
Classification of hot air heater under HS 7322.90
The classification of a hot air heater under HS code 7322.90 is determined by its mechanical construction and heating method. According to the General Rules for the Interpretation (GRI) of the Harmonized System, products are classified based on their material composition and functional characteristics. Heading 7322 covers radiators for central heating and air heaters. Specifically, subheading 7322.90 is reserved for air heaters and hot air distributors that are not electrically heated and incorporate a motor-driven fan or blower. These units are typically constructed from iron or steel and are designed to distribute heat in large industrial or commercial environments. The classification hinges on two critical factors: first, the heat source must be non-electric (such as gas, oil, or steam), and second, the unit must possess an active mechanical component for air circulation. If the device lacks a fan, it may be classified elsewhere as a passive heat exchanger. The use of iron or steel as the primary material for the casing and heat exchange elements further solidifies its placement within Chapter 73.
- Covers
- Gas-fired industrial space heaters
- Oil-burning hot air distributors
- Steam-heated air blowers for warehouses
- Non-electric duct heaters with integrated fans
- Iron or steel heat diffusers with motor-driven blowers
- Also under 7322.90
- Powrmatic NVx
- Reznor V3 Series
- Ambirad Radiant Heaters (some models)
- Combat Heating Products
- Benson Heating
Codes often confused with 7322.90
Common mistake. Hot air heaters are frequently misclassified under HS code 8516.29, which covers electric space heating apparatus. The primary distinction is the energy source; if the heating elements are electric, Chapter 85 is mandatory. Another common error is using HS code 8419.50 for heat exchange units. While both involve heat transfer, 8419 is generally for units without integrated fans or those used for processing materials rather than space heating. Additionally, simple radiators without fans fall under 7322.11 or 7322.19.
Top exporters and importers of HS 732290 (the code used for hot air heater), 2025
In 2025, the largest exporter of HS 732290 (the code used for hot air heater) in UN Comtrade data was Mexico, with 32% of world exports; the largest importer in UN Comtrade data was the United States, with 43% 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 732290, not only hot air heater.
Top exporters 2025 · share of world exports
- 1 Mexico $556M 32% of world exports
- 2 United States $411M 23% of world exports
- 3 Canada $120M 6.8% of world exports
World total: $1.8B Reported figures on UN Comtrade ↗
Top importers 2025 · share of world imports
- 1 United States $828M 43% of world imports
- 2 Canada $462M 24% of world imports
- 3 Germany $67M 3.4% of world imports
World total: $1.9B 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 codes for hot air heater
Brazil splits HS 7322.90 into 2 NCM codes. Pick the one that matches your product:
- 7322.90.10Liquid-fuel air heaters for motor vehicles
- 7322.90.90Other air heaters, hot air distributors and parts
Source: Siscomex NCM table, updated Oct 2026. The Portuguese text on each NCM page is the official one.
Questions about hot air heater
What is the HS code for Hot air heater?
The HS code for Hot air heater is 732290 (Air heaters and hot air distributors, (not electrically heated), incorporating a motor-driven fan or blower and parts thereof, of iron or steel). The HS code for a non-electric hot air heater made of iron or steel with an integrated fan is 7322.90.
How do I classify Hot air heater for customs?
Hot air heater is classified under HS code 732290 — Air heaters and hot air distributors, (not electrically heated), incorporating a motor-driven fan or blower and parts thereof, of iron or steel. This is a 6-digit subheading level code.
Does this code include portable electric fan heaters?
No, portable electric fan heaters are classified under HS code 8516.29 because they utilize electric resistance heating rather than gas or oil.
Which countries are the top exporters of hot air heater (HS 732290)?
In 2025, the top exporters of HS 732290 (the code used for hot air heater) in UN Comtrade data were Mexico ($556M, 32% of world exports), the United States ($411M) and Canada ($120M). World exports came to about $1.8B, 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 hot air heater (HS 732290)?
In 2025, the top importers of HS 732290 (the code used for hot air heater) in UN Comtrade data were the United States ($828M, 43% of world imports), Canada ($462M) and Germany ($67M). World imports came to about $1.9B, 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 Hot air heater the same in all countries?
The base HS code 732290 for Hot air heater 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 hot air heater in Brazil?
Brazil splits HS 732290 into 2 NCM codes, so the right one for hot air heater depends on the product's details: 7322.90.10 (Liquid-fuel air heaters for motor vehicles), 7322.90.90 (Other air heaters, hot air distributors and parts).