There are two different types: flat plate, where lots of thin tubes carry water through a flat absorber panel, and evacuated tube, where vacuum glass tubes capture the sun’s energy directly. There is little difference in performance between the two but evacuated tube panels do more obviously extrude from the roof.
Henfield
Henfield is a large town and civil church in the Horsham District of West Sussex, England. It exists 33 miles (53 km) south of London, 12 miles (19 km) northwest of Brighton, as well as 30 miles (48 km) eastern northeast of the county town of Chichester at the road junction of the A281 and A2037. The church has a land area of 4,285 acres (1,734.1 ha). In the 2001 census 5,012 people stayed in 2,153 homes, of whom 2,361 were financially energetic. Other neighboring towns consist of Burgess Hill to the eastern and also Shoreham-by-Sea to the south. The population at the 2011 Census was 5,349. Simply west of the community, the two branches of the River Adur, the western Adur and the eastern Adur, meet at Betley Bridge. From Henfield the Adur flows on right into the English Channel at Shoreham-by-Sea. Henfield was currently a huge village, of 52 families, at the time of Domesday (1086 ).