Forced system

Indirect Systems

Closed Loop Systems are a type of system, sometimes simply referred to as “Indirect” because the sun, through a roof mounted collector, heats fluid circulating in a closed off solar loop which never comes in direct contact with usable water stored in an insulated tank.

  Indirect Pressurized System Features:
Accommodates climates where freezing weather occurs more frequently
A Differential Control senses temperature differences between water leaving the collector and the coldest water in the bottom of the storage tank. When the temperature of the water in the collector is hotter than the water in the tank, the differential control operates the circulating pump.
A heat exchanger is located within the storage tank to maximize the heat transfer from the antifreeze solution to the coldest water in the storage tank.
A small photovoltaic solar panel option which generates electricity from the sun) is available to operate the circulation pump, further reducing traditional energy consumption