Solar Water Heater (SWH) is a technology that can be used as a water heater by utilizing solar energy. Conventional SWH uses water as a heat storage media. But the use of water as a heat storage has shortcomings including low energy density so it requires large volumes. To overcome this problem, this study uses phase change material (PCM) to store heat. The PCM used is paraffin wax and 20% copper powder because it has a high energy density. The purpose of this study was to determine the rate of heat release and decrease in temperature continuously in the SWH tank with a variety of discharges provided using the continuous discharging method. Continuous discharging research is carried out by flowing water into the tank continuously at variations in water discharge 1; 1,5; 2; 2.5 LPM from the initial temperature of 70°C in the tank to a temperature of 35°C in the container. The research data were obtained from thermocouple temperature readings mounted on copper pipes with flow direction readings on each axial, vertical and horizontal section. From the results it is found that the lowest water discharge rate is 1 LPM debit with water discharge value 7.275.700,69 J/s and PCM discharge rate 550.913.12 J/s, while the largest water discharge rate value is debit 2.5 LPM with a water emission rate of 7.645,077.74 J/s and a PCM emission rate of 581,667,51 J/s. The lowest drop in water temperature was at 1 LPM debit with a water dropoff rate of 22.15°C / hr and PCM down-rate of 22.42°C / hour, while the largest water-drop rate was 2.5 LPM with water droplet rate value of 33.46°C / hour and PCM temperature drop of 33.83°C / hour.