... 25years life time Solar Energy Water Heater ,solar water heater,flat panel solar water heater,solar water heating system Product ... pump, controller, valves and all the other accessories. It's a complete package. -----------------------------------------------Specification of flat plate solar ... Capacity: 100L, 150L, 200L, 250L, 300L 4. Heat preservation: 72 hrs 5. Testing pressure: 9 bar ...