This paper introduces some preliminary results in its design and fabrication of a non-glass solar vacuum tube collector where the thermosyphon (heat pipe) made of copper is used as a heat transfer device. A series of tests have been performed to assess the effects of the air remaining inside a vacuum tube. Different vacuum pressures inside non-glass evacuated tubes were tested along with their time variations to check any leakage or undesirable(unexpected) physical or chemical developments. Temperatures monitored during the process have revealed interesting but important facts concerning its performance to collect and deliver the sun’s energy for water heating.