... -40 degree 3.OEM provide Split pressurized Heat pipe solar collector heating System1,Size:58/1800,47 ... , special minds can designed like swimming pool heat system. Heat Pipe Solar Collector Detailed SpecificationItemPartsDescriptionManifold boxManifold Outer Case1001 Aluminum ... Dia: 58mm, Length: 1800mm.Copper Heat PipeTU1, Silver Soldering; Condenser of the pipe: diameter: 14mm; length: 70mm; wall ...