Drainback Solar Water Heater System from Canada
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 — Canada → United States
10%
Rate breakdown
9903.05.2910%Section 301 (forced labor) — additional 10% ad valorem on products of Canada
Import Tips
• Specify 'distilled water only' operation to maintain nonelectric solar heater status
• Include controller specs showing pump serves only circulation, not primary heating