High-Pressure Economizer Assembly
> A heavy wall economizer assembly for high-pressure steam boilers exceeding 1000 psi operation. It is engineered specifically as auxiliary plant for power boilers of heading 84.02 or 84.03, featuring thick-walled tubes and reinforced headers, and falls 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 the assembly is a general-purpose high-pressure heat exchanger
Heat exchange units of general use are classified under heading 84.19.
If imported as part of a complete boiler
Auxiliary equipment presented with a boiler may be classified with the boiler.
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 assembly is designed for high-pressure boilers of heading 84.02 or 84.03, as similar equipment for other pressure systems may be classified differently
• Provide the CBSA with pressure ratings and design specifications
• If the assembly is part of a boiler system, verify whether it should be classified with the boiler
Related Products under Tariff item 8404.10.00
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.
Boiler Draft Fan Silencer
An acoustic silencer designed for induced draft fans in boiler systems, reducing noise while maintaining required draft pressure differentials. This silencer is auxiliary plant for boilers. It is classified under tariff item 8404.10.00 as auxiliary plant for use with boilers of heading 84.02 or 84.03.
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 Economizer Bypass Damper
A heavy-duty damper system that controls flue gas flow around economizers for temperature regulation, critical for safe operation during startup and load changes. This bypass damper is auxiliary plant for boilers. It is classified under tariff item 8404.10.00 as auxiliary plant for use with boilers.
Boiler Feedwater Preheater
A shell-and-tube preheater that uses extracted steam to raise feedwater temperature before it enters the boiler, reducing thermal shock and improving cycle efficiency. This feedwater preheater is auxiliary plant for boilers. It is classified under tariff item 8404.10.00 as auxiliary plant for use with boilers.
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.