In the suggested collector design, the heat source is positioned at the bottom. As a result, direct heat transfer allows for effective control of flat collector heating. However, in the case of the cylindrical collector, the heating is restricted to the indirect heat emanating from the flat surface. To enhance its heating control, our solution involves incorporating a channel around the collector to increase the radiant heat, guided by heat transfer simulations (Figure ). simulation is effectively predicting the heating capacity of the collector. By increasing the heater temperature to 150°C, which is the maximum recommended due to heater features, the top surface of the flat collector was measured to be 130°C. The heat simulation of the flat collector revealed a near-uniform distribution of heat across the collector's surface. A ~30°C difference between the middle and edge of the collector can also be observed and can be attributed to the dimension of heater compared with the collector.