Closed Loop Thermosyphon Solar Water Heater

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 thermosyphon solar water heater.

Indirect system with heat exchanger. Inside the heat exchanger is a glycol formula that prevents freezing of the potable water. Wombat vented thermosiphon solar water heaters are a great choice for consumers who want a cost effective hot water solution. When mounted on the roof the house is provided with gravity fed hot water.

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. There is an external heat exchanger in the tank. Closed circuit system if the heating fluid is the antifreeze solution we are talking about the closed circuit thermosyphon solar water heater and they can be used in the areas that are prone to frost and have hard water issues. In high solar radiation areas wombat solar water heaters can be the sole energy source for hot water supply.

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.