Solar Vakuum-Röhrenkollektor - 20 Rohr solare Wasser-

Most efficient vacuum tube---"3-Hi" vacuum tube technology “3 Hi” vacuum tubes use 3 systems coating to ensure the most effective heat absorption. This includeda AL-N/AI layer but also a separatealuminum and copper layer.The addedlayer conduct heatbetter and also stabilize the coating allowing for a much longer lifespan of20 year or greater. Technical Specifications SpecificationHeat Pipe58/1800-20RHeat Pipe58/1800-30RNumber of tubes2030Frame& manifoldAluminumAluminumHeating typeCopper Heat PipeCopper Heat PipeLenth of Tube1800mm1800mmODof tube58mm58mmID of tube50mm50mmGlass Thickness2mm2mmWater Capacity1l(1/4 gallons)1.5l(1/3 gallons)Weight dry169lbs211lbsWeigh Wet173lbs215lbsMax BTU/HR5000/hr7500 BTU/hrPressure116psi116 psiGlass MaVacuumterialBorosilicate glassBorosilicate glassVacuumP<5x10 -3 PAP<5x10 -3 PAFrameIncludedIncludedWarranty5 years5 years Test Drive one of our solar systems and you will quickly see the difference a powerful "engine" makes.