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.
Tetbury
Tetbury is a town as well as civil parish within the Cotswold district of Gloucestershire, England. It rests on the site of an ancient hillside ft, on which an Anglo-Saxon monastery was founded, possibly by Ine of Wessex, in 681. The population of the parish was 5,250 in the 2001 census, increasing to 5,472 at the 2011 census. During the Middle Ages, Tetbury became a vital market for Cotswold wool and yarn. The Tetbury Woolsack Races, established 1972, is a yearly competitors where participants have to lug a 60-pound (27 kg) sack of woollen up and down a high hillside (Gumstool Hill). The Tetbury Woolsack Races happen on the "late May Bank Holiday", the last Monday in May annually. Remarkable buildings in the town include the Church House, Market House, integrated in 1655 as well as the late-eighteenth century Gothic revival parish church of St Mary the Virgin and also St Mary Magdalene and much of the remainder of the community centre, dating from the sixteenth as well as seventeenth centuries. The Market House is a great example of a Cotswold pillared market house and is still being used as a meeting place as well as market. Other tourist attractions consist of the Police Bygones Museum. Chavenage House, Highgrove House as well as Westonbirt Arboretum exist just outside the town. Tetbury has actually won 5 consecutive Gold awards in the Regional "Heart of England in Bloom" competitors in 2006, 2007, 2008, 2009 and also 2010 and also was classification champion "Best Small Town" in 2008, 2009 and 2010. In 2010 Tetbury was Overall Winner of Heart of England in Bloom and also won a Judges Discretionary Award for Community Achievement. Tetbury won Silver Gilt as a new entrant in the National Britain in Bloom Project in 2009 as well as a 2nd Silver Gilt in Britain in Bloom in 2011. The Tetbury community crest features 2 dolphins.