Closed Loop Thermosyphon Solar Water Heater

Closed loop systems use a heat transfer fluid to collect heat and a heat exchanger to transfer the heat to household water.

Closed loop thermosyphon solar water heater.

When mounted on the roof the house is provided with gravity fed hot water. Inside the heat exchanger is a glycol formula that prevents freezing of the potable water. There is an external heat exchanger in the tank. In high solar radiation areas wombat solar water heaters can be the sole energy source for hot water supply.

Active closed loop systems use electric pumps valves and controllers to circulate the heat transfer fluid usually a polypropylene non toxic unlike polyethylene glycol water antifreeze mixture through the collectors. Closed loop solar water heater systems sometimes referred to as anti freeze or glycol systems include the heat collectors insulated piping a circulating pump an expansion tank a hot water storage tank a heat exchanger solar fluid usually a solution of water and nontoxic propylene glycol antifreeze a controller valves and gauges. Wombat vented thermosiphon solar water heaters are a great choice for consumers who want a cost effective hot water solution. Indirect system with heat exchanger.

3mm metallic storage tank of rheem solar thermosyphon water heaters tested to din 4800 5 for much higher resistant to high pressure water supply networks as most. Heat is transferred to the potable water through the heat exchanger in the lower portion of the storage tank.