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 HTS 8404.10.00.10 as auxiliary plant specifically for use with boilers of headings 8402 or 8403. This heat exchanger mounts directly on the boiler exhaust stack.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If used in heat recovery systems independent of boilers
Machinery for heat recovery not specifically auxiliary to boilers falls under heading 8419 for heat exchange units.
If imported as part of complete industrial machinery set
When sold as assembled components of larger non-boiler machinery, classification shifts to 8479 for unspecified machines.
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Import Tips & Compliance
• Verify compatibility with specific boiler models from headings 8402/8403; require material certificates for cast iron construction; ensure pressure vessel compliance with ASME standards
Related Products under HTS 8404.10.00.10
Steel Tube Boiler Economizer
Finned steel tube economizer that captures residual heat from combustion gases to preheat boiler water, reducing fuel consumption. Falls under HTS 8404.10.00.10 as dedicated economizer auxiliary plant for steam boilers. Features high-pressure tubes rated for industrial boiler exhaust temperatures.
Fire Tube Economizer Module
Modular fire tube economizer with multiple passes for maximum heat transfer from flue gases to boiler feedwater. Specifically engineered as auxiliary equipment for water tube boilers under headings 8402/8403, hence HTS 8404.10.00.10. Includes mounting flanges for direct boiler integration.
Condensing Economizer Unit
Advanced condensing economizer that recovers both sensible and latent heat from boiler exhaust, achieving up to 98% efficiency. Designed exclusively as auxiliary plant for industrial boilers (HTS 8404.10.00.10). Features corrosion-resistant materials for acidic condensate handling.
Industrial Waste Heat Economizer
Heavy-duty economizer for recovering waste heat from large industrial boilers, featuring bare tube and finned sections. Classified under HTS 8404.10.00.10 as essential auxiliary plant for boilers in power generation and manufacturing. Built to withstand high-temperature, high-dust flue gas environments.
Packaged Boiler Economizer Kit
Complete factory-assembled economizer kit including tubes, headers, casing, and mounting hardware for field installation on boilers. Specifically HTS 8404.10.00.10 as auxiliary plant despite kit packaging, due to exclusive boiler application. Includes pre-wired temperature controls.
Stainless Steel Economizer Coils
Corrosion-resistant stainless steel helical coils designed for economizer service in biomass boilers. HTS 8404.10.00.10 classification as boiler auxiliary plant due to specific design for flue gas heat recovery. Rated for alkaline combustion environments.