Evacuated tube collector designed for on-roof portrait installation, with a large shaped reflector that concentrates solar radiation to the absorption surface of evacuated tubes. The tube consists of 2 coaxial glass tubes with vacuum between them. An aluminium lamella fitting closely to the glass tube collects heat from the whole inner surface of the evacuated tube, giving it away into solar fluid inside the copper pipe. These copper pipes join the collector header, insulated with 30 mm of mineral wool. Output 1012 Wp. SVT code: 541.