Drainback Solar Water Heater System from Mexico
Drainback design automatically drains collectors when pump stops, using distilled water to prevent freezing damage. Qualifies under HTS 8419.12.00.00 as nonelectric solar water heater despite minimal pump (classified as solar thermal equipment).
Duty Rate — Mexico → United States
10%
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
• Specify 'distilled water only' operation to maintain nonelectric solar heater status
• Include controller specs showing pump serves only circulation, not primary heating