Cast Iron Plenum Chamber for Air Heater
A cast iron chamber that mixes and distributes hot air from the blower in non-electrically heated air heaters. Under HTS 7322.90.00.45 as a core part of hot air distributors with motor-driven fans. Designed for even pressure distribution to ductwork.
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Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If used as standalone air duct components
Panels, ducting, and similar structures classified in 7308.
If for non-heating ventilation systems
General steel fabrications without heat distributor function.
If part of conditioned air distributors without heating
Pure ventilation parts may shift to Chapter 84.
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Import Tips & Compliance
• Include airflow simulation data or CAD files showing integration with blower
• Ensure cast iron certification; steel versions may alter documentation needs
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