8402.11.00.00 - Watertube boilers with a steam production exceeding 45 t per hour

This HTS classification, 8402.11.00.00, specifically covers watertube boilers designed for substantial steam generation. These are industrial-grade boilers characterized by their internal construction, where water circulates through tubes that are heated externally by combustion gases. The defining feature of this category is their high steam output capacity, explicitly exceeding 45 metric tons per hour, indicating their use in large-scale industrial processes, power generation, or significant manufacturing operations.

Distinguishing this category from its siblings is crucial for accurate classification. Unlike the watertube boilers classified under 8402.12.00.00, which have a lower steam production capacity not exceeding 45 metric tons per hour, the boilers in 8402.11.00.00 are engineered for much more demanding applications. Furthermore, they are distinct from the "other vapor generating boilers, including hybrid boilers" under 8402.19.00.00, which encompass a broader range of boiler types that do not exclusively fit the watertube design or have different operational principles.

As a leaf node, this classification does not have further subdivisions. Therefore, the focus for importers and exporters lies in confirming that the watertube boiler in question meets the specified steam production threshold of over 45 metric tons per hour. Verification may involve consulting the manufacturer's specifications, technical documentation, or performance data to ensure precise adherence to the criteria for this particular HTS code.