Of the 21,000,000 square feet (2,000,000 m2) of solar thermal collectors produced in the United States in 2007, 16,000,000 square feet (1,500,000 m2) were of the low-temperature variety. Low-temperature collectors are generally installed to heat swimming pools, although they can also be used for space heating. Collectors can use air or water as the medium to transfer the heat to their destination.
Read more about this topic: Solar Thermal Energy
Other articles related to "collectors, collector":
... Unglazed transpired collectors (UTC) are perforated sun-facing walls used for preheating ventilation air ... The short payback period of transpired collectors (3 to 12 years) make them a more cost-effective alternative to glazed collection systems ... As of 2009, over 1500 systems with a combined collector area of 300,000 m² had been installed worldwide ...