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.
Melton Constable
Melton Constable is a village as well as civil parish in the English area of Norfolk. It covers an area of 6.96 km2 (2.69 sq mi) and also had a population of 518 in 225 households at the 2001 census. The population had actually enhanced to 618 at the 2011 Census. For the objectives of local government, it drops within the district of North Norfolk. The town rests on fairly high ground south-west of Holt. The place-name 'Melton Constable' is first attested in the Domesday Book of 1086, where it looks like 'Maeltuna'. This might imply either 'middle town' or 'mill town'. There is a reference to 'Constabularius de Melton' in 1197, as the land was held by the constable of the bishop of Norwich. Melton Constable Hall is regarded as the finest sampling of the Christopher Wren style of house. The church of St Peter's Melton Constable lies within Melton Constable park; it contains numerous monuments to the Astley family, that formerly lived at Melton Constable Hall.