Comparison between a solar collector system and the commercial water heater in CO2 emission and economic

Nowadays, most of governments trend towards reducing the independency of fossil fuel sources of energy and replacement them, with renewables one[7]. In the solar-energy industry great emphasis has been placed on the development of active solar energy systems which involve the integration of several subsystems: solar energy collectors, heat-storage containers, heat exchangers, fluid transport and distribution systems, and control systems. Solar collectors systems are very developed instead of commercial water heater. It’s obvious using solar energy will be more environmental friendly. some parts of universe has sufficient radiation received to the earth surface and could be supply the entire world energy, for example, middle east region. In this paper we have announced the comparison of two kinds of heat water and their environmental factor, despite of life cycle of producing of solar collectors and commercial heaters.