Solar Water Heater

Non-pressurized solar water heater is a cost-effective system for residential hot water application. this system is designed according to thermosiphon principle and operating with proportion difference between cold and hot water. The water heated by vacuum tubes is held in the stainless steel storage tank where the insulation preserves the heat.

The thermosiphon solar water heater uses the sun to heat the working fluid (mostly water) in the vacuum tubes. The solar collector absorbs solar radiation, and converts the sunlight to heat and transfer it to the water. The heated water naturally rises through the solar collector into the water tank where the cooler water at the bottom of the tank is forced out and descends to the bottom of the collector (thermosiphon circulation). The circulation will be interrupted when there is no solar radiation.