Boiler Economizer Module from Japan
Heat recovery module installed in boiler exhaust stacks to preheat feedwater using waste gases from steam generation. Falls under HTS 8402.90.00.90 as a performance-enhancing part of vapor boilers.
Duty Rate — Japan → United States
12.5%
Rate breakdown
9903.05.4912.5%Except for products described in headings 9903.05.85–9903.05.92, articles the product of Japan, with an ad valorem (or ad valorem equivalent) rate of duty under column 1 less than 12.5 percent, as provided for in U.S. note 52 to this subchapter
Import Tips
• Include energy efficiency certifications (e.g
• EPA ratings) for preferential tariff treatment
• Document exhaust gas temperature specs to differentiate from HVAC heat exchangers