3D Model: Generate A Realistic 3D Model Of A Solar Water Heater With Vacuum Tubes. The System Consists Of A Horizontal Cylindrical Metal Tank Mounted On Top Of An Inclined Triangular Metal Frame. From The Bottom Of The Tank, Multiple Parallel Vacuum Glass Tubes Extend Downward At About A 45-degree Angle. The Tubes Rest On A Reflective Lower Support. The Structure Is Freestanding And Designed To Capture Solar Energy For Water Heating.