Boiler Air Preheater
> A rotary or tubular device that preheats combustion air using heat recovered from boiler flue gas, reducing fuel consumption. It is designed for direct integration with boilers of heading 84.02 or 84.03 and qualifies as auxiliary plant under tariff item 8404.10.00.
Import Duty Rates by Country of Origin
| Origin Country | MFN Tariff | Surtaxes | Total Effective Rate |
|---|---|---|---|
| 🇨🇳China | Free | — | Free |
| 🇲🇽Mexico | Free | — | Free |
| 🇺🇸United States | Free | — | Free |
| 🇩🇪Germany | Free | — | Free |
| 🇯🇵Japan | Free | — | Free |
More Specific Codes
This product may fall under a more specific subheading:
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If imported as an integral part of a complete boiler
The air preheater may be classified with the boiler if it is presented as a component of a complete boiler unit.
If the preheater is a standalone heat exchange unit not specifically designed for boilers
Heat exchange units not exclusively for boiler use may fall under heading 84.19.
Not sure which classification is right?
The Tariff Assistant works through the GRI rules on your specific product to reach the right tariff item — and can price the duty on it in the same conversation.
Import Tips & Compliance
• > Ensure the air preheater is designed solely for use with boilers of heading 84.02 or 84.03 to qualify under this tariff item
• Provide technical documentation, such as drawings or specifications, to the CBSA to confirm its auxiliary function
• If the device is imported as part of a complete boiler system, verify whether it should be classified separately or with the boiler
Related Products under Tariff item 8404.10.00
Boiler Economizer
> A heat recovery device installed in the flue gas path of steam boilers (headings 84.02 or 84.03) to preheat feedwater using residual heat from exhaust gases. It improves overall boiler efficiency and is explicitly covered as auxiliary plant under tariff item 8404.10.00.
Boiler Superheater
> A component that heats steam beyond its saturation point after leaving the boiler drum, increasing energy content for turbine use in power generation. It is designed for use with boilers of heading 84.02 or 84.03 and qualifies as auxiliary plant under tariff item 8404.10.00.
Cast Iron Boiler Economizer
> A cast iron economizer designed to recover waste heat from boiler flue gases to preheat feedwater, improving overall boiler efficiency. It is classified under tariff item 8404.10.00 as auxiliary plant specifically for use with boilers of heading 84.02 or 84.03.
Condensing Economizer Unit
> An advanced condensing economizer that recovers both sensible and latent heat from boiler exhaust, achieving high efficiency. It is designed exclusively as auxiliary plant for industrial boilers of heading 84.02 or 84.03 and falls under tariff item 8404.10.00.
Deaerator for Boiler Feedwater
> A vessel that removes dissolved oxygen from boiler feedwater to prevent corrosion, using steam scrubbing. It functions as auxiliary plant under tariff item 8404.10.00 when integrated with boilers of heading 84.02 or 84.03, and is typically tray or spray-type.
Fire Tube Economizer Module
> A modular fire tube economizer with multiple passes for maximum heat transfer from flue gases to boiler feedwater. It is specifically engineered as auxiliary equipment for water tube boilers under headings 84.02 or 84.03, qualifying under tariff item 8404.10.00.