... designed like swimming pool heat system. Heat Pipe Solar Collector Detailed SpecificationItemPartsDescriptionManifold boxManifold Outer Case1001 Aluminum ... plastic spraying; thickness: 2.0mmHeat Pipe Evacuated TubeVacuum TubeThree high vacuum tube, ALN/ALN-SS/CU absorber ... coating, Dia: 58mm, Length: 1800mm.Copper Heat PipeTU1, Silver Soldering; Condenser of the pipe ...