U.S. imports of Super-Heated Water Boilers (SITC 71112) totaled $1.4M in August 2026, imported from 16 countries.
Importers of Super-Heated Water Boilers paid $263K in duties in August 2026, an average duty rate of 18.46% — duty actually collected as a share of the imports that cleared customs, not the published tariff schedule. Super-Heated Water Boilers imports of $1.4M in August 2026 ran 275% above the year-to-date monthly average of $380K.
Last updated: August 2026 dataSuper-heated water boilers generate pressurized hot water above normal boiling point for district heating systems, industrial process heat, and large commercial facilities. Unlike steam boilers, these units operate in a liquid-phase pressurized loop, which affects both engineering specifications and classification at the border. Importers should confirm whether a unit qualifies as a super-heated water boiler versus a steam generator, as the distinction drives the applicable tariff line and any applicable Section 232 steel/aluminum content considerations for the pressure vessel components.
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5 import shipments a month
A super-heated water boiler maintains water in liquid phase under pressure at temperatures above 100°C, whereas a steam boiler produces vapor. Customs classification turns on the operating principle and design documentation; importers should provide technical specifications and engineering drawings to support the correct classification.
Yes. While US Customs and Border Protection handles tariff classification, super-heated water boilers intended for installation must typically comply with ASME Boiler and Pressure Vessel Code requirements enforced at the state level. Buyers should confirm code compliance before shipment to avoid costly retrofits or rejection by local inspectors.
Basic heading 71112 · $1.4M of $172.0B
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Imports · August 2026
origin
Netherlands and Vietnam together supply 77% of it. China pays 40.8% duty; Netherlands 10.0%.
customs district
Census does not publish district detail for this classification system.
destination
Census does not publish state detail for this classification system.
entry
Census does not publish port detail for this classification system.
ImportsExports
Imports
$1.4MYoY · free account
Exports
$200KYoY · free account
12-mo low · imports
Low · free accountOver the twelve months to August 2026, the U.S. imported $3.3M of Super-Heated Water Boilers.
Through August 2026 · exports 10 of 12 months reported. Source: U.S. Census Bureau.