Closed Loop Thermosyphon Solar Water Heater

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.

Closed loop thermosyphon solar water heater.

Indirect system with heat exchanger. When mounted on the roof the house is provided with gravity fed hot water. 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. 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.

In high solar radiation areas wombat solar water heaters can be the sole energy source for hot water supply. Closed loop solar water heaters. Heat is transferred to the potable water through the heat exchanger in the lower portion of the storage tank. Closed loop systems use a heat transfer fluid to collect heat and a heat exchanger to transfer the heat to household water.

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.