Boiler Economizer Module from Mexico
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 — Mexico → United States
14.3%
Rate breakdown
9903.05.5510%Except for products described in headings 9903.05.85–9903.05.92 and 9903.05.94, articles the product of Mexico, 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