Economizers
Auxiliary plant for use with boilers of heading 84.02 or 84.03 (for example, economizers, super-heaters, soot removers, gas recoverers); condensers for steam or other vapour power units. > Auxiliary plant for use with boilers of heading 84.02 or 84.03 > Economizers
Duty Rate (from China)
Products classified under Tariff item 8404.10.00.10
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.
8404.10.00Boiler 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.
8404.10.00Boiler 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.
8404.10.00Cast 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.
8404.10.00Condensing 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.
8404.10.00Deaerator 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.
8404.10.00Fire 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.
8404.10.00Flue Gas Heat Recovery Unit
> An auxiliary system that captures waste heat from boiler exhaust gases to preheat combustion air or generate hot water. It qualifies under tariff item 8404.10.00 as a gas recoverer for boilers of heading 84.02 or 84.03, with a modular design for easy integration.
8404.10.00High-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.
8404.10.00Industrial Waste Heat Economizer
> A heavy-duty economizer for recovering waste heat from large industrial boilers, featuring bare tube and finned sections. It is classified under tariff item 8404.10.00 as essential auxiliary plant for boilers in power generation and industrial applications of heading 84.02 or 84.03.
8404.10.00Modular Economizer Bank
> A pre-assembled modular economizer bank with multiple tube circuits for scalable boiler applications. It is specifically designed as auxiliary plant for industrial boilers of heading 84.02 or 84.03, factory leak-tested with interconnection piping, and falls under tariff item 8404.10.00.
8404.10.00Packaged Boiler Economizer Kit
> A complete factory-assembled economizer kit including tubes, headers, casing, and mounting hardware for field installation on boilers. It is classified under tariff item 8404.10.00 as auxiliary plant despite kit packaging, due to exclusive design for boilers of heading 84.02 or 84.03.
8404.10.00Retractable Soot Blower Lance
> An extendable lance system that delivers cleaning media to boiler tube banks, retracting to avoid interference during operation. It is covered under tariff item 8404.10.00 as a soot remover auxiliary for boilers of heading 84.02 or 84.03, and is wall-mounted with automatic controls.
8404.10.00Soot Blower for Boilers
> An automated device using steam, air, or water jets to remove soot and ash deposits from boiler tubes and heat transfer surfaces, maintaining efficiency. It falls under tariff item 8404.10.00 as a soot remover, explicitly listed as auxiliary plant for boilers of heading 84.02 or 84.03.
8404.10.00Steam Power Unit Condenser
> A shell-and-tube heat exchanger that condenses exhaust steam from turbines back to water in vapor power cycles, enabling reuse in boilers. It is covered by tariff item 8404.10.00 as a condenser for steam power units associated with boilers of heading 84.02 or 84.03.