Features & benefits high density puf insulated storage tank maintain the warm water up to 72 hrs. Special quality coating fusion bond helps keep inner tank free from rust and corrosion. Ensure no particles bond or react on the inner tank. This inner tank is appropriate for every type of water. 3t advance tubes gives better performance even in cloudy weather. Special pr ofile rolled section stand provide stability and strength to system. Special quality assistant tank controls mixing of hot and cold water. Overall, Increase the life and performance solar-powered water heater system. Sunjivan solar complete your hot water needs saving your money everyday. Working principle plug into the sun. .. Non, Pressurized evacuated tube solar water heater works on the natural circulation of water between solar collector tubes & water tank as thermosyphon system. As water in the vacuum tube it rise, Is heated naturally in to the at the, Storage tank same time cold water in tank flow down to the vacuum tube, Causing circulation throughout the thermosyphon system. Special quality 3t standard solar tube of solar water heater gives better performance in cloudy and winter days. Water heating is faster due to efficient 3t technology of tubes. Technical specification s. No description specifications 1 evacuated tube length 58x1800mm & 58x2100mm 2 evacuated tube diameter 58mm 3 storage tank diameter 480mm, 460mm & 580mm 4 storage 300 lpd, 200 lpd, 250 lpd, Tank volume 150 lpd, 500lpd 5 inner tank material 120 gsm galvanize zero spangle 6 inner tank thickness 1. 6 mm / 2 mm 7 outer tank material powder coated or crafted in stainless steel 8 tank insulation high density puf 50mm 9 method of bonding co2 welding. 10 stand special profile rolled section stand 11 grommets silicon washers 12 circulation thermosymphon