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.
Llanarth
Llanarth (population 1,616) is a tiny village and neighborhood in Ceredigion, Wales, situated on the A487 in between Aberystwyth and Cardigan within three miles of both Aberaeron and also New Quay. Llanarth has a petrol station, post office, a primary school, a pub, a butcher, a Spar convenience store and a garden centre. The parish church of St David's, once devoted to St Fylltyg, is a Grade II listed building. It was refurbished in 1872. A rock in the churchyard is occasionally pointed out as bearing the Devil's impact. According to legend, he was trying to steal among the church's bells one evening, but woke the vicar, that drove him off. He left the impact as he fled.