Research on utilization of solar energy for heating water using parabolic collectors equipped with mirror that used as reflectors have been done. Parabolic collectors were placed on direct sunlight with 500 grams, 750 grams and 1000 grams mass of water in the container during 15 days of observation. The observations were carried out at time interval of 30 minutes from 10.00 am until 15.00 pm. T…