Cast Iron Boiler Heat Exchanger
A cast iron heat exchanger designed specifically as a replacement part for central heating boilers not of heading 8402. It facilitates the transfer of heat from combustion gases to water in the boiler system. Classified under HTS 8403.90.00.00 as a dedicated part of central heating boilers.
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 solar water heaters
Parts for solar heating systems fall under machinery for heating liquids, not central heating boilers.
If sold as general cast iron appliance part
Generic cast iron parts for stoves or ranges are classified separately from boiler-specific components.
Not sure which classification is right?
Our AI classifier can analyze your specific product and recommend the correct HTS code with confidence.
Import Tips & Compliance
• Verify compatibility with specific boiler models via manufacturer specs to avoid misclassification; ensure material composition documentation for cast iron content; obtain boiler part certification if required by local codes
Related Products under HTS 8403.90.00.00
Central Boiler Manifold Header
Forged steel header manifold distributing hot water from central heating boilers to heating zones. Threaded ports specific to boiler sections. HTS 8403.90.00.00 part.
Boiler Low Water Cutoff Switch
Electronic low water cutoff probe switch that shuts down boiler burner when water level drops dangerously low. Specific to central heating boilers. 8403.90.00.00.
Cast Steel Boiler Grate Bars
Replaceable cast steel bars forming the grate in solid fuel central heating boilers for supporting combustion bed. Specific alloy for high heat. HTS 8403.90.00.00.
Boiler Draft Inducer Blower Housing
Aluminum housing for the induced draft fan in gas-fired central heating boilers, promoting proper venting. OEM-specific mounting. Under 8403.90.00.00.
Stainless Steel Boiler Burner Assembly
Stainless steel burner assembly tailored for central heating boilers, controlling fuel combustion. It includes nozzle and ignition components integral to boiler operation. Falls under HTS 8403.90.00.00 as parts thereof.
Boiler Control Thermostat Module
Electronic thermostat module for regulating temperature in central heating boilers. Designed exclusively for integration into boiler control systems. Classified in HTS 8403.90.00.00 as a boiler part.