Solar energy is a renewable source of energy. Its do not contribute to emission of green house gas and other pollutant to the environment. It is sustainable since it can not be deplete in a time relevant to primary source oil. Coal, gas. In this paper new parabolic through collector system with manual tracking system has been developed for hot water generation. Which covered by aluminium foil which work as a reflector. Two copper tube of varying diameter for absorbing were taken. Experiment conducted on different diameter tube along with changing focal length of collectors so that maximum heat transfer from the receiver achieved performance evaluation of this system has been done during the month of december 2015 (winter season) at gwalior (m.p.) (26.22 n latitude, 78.10 e longitude.)
