EXPLANATION: It shows how cold water enters into the main tank, circulates through collector and gets converted into hot water by an automatic differential temperature controller generating command to start the pump during sun shine. The another circuit with bubble movement shows continuous movement of hot water in the distribution network to ensure continuous and instant availability of hot water at each utility point. The losses during circulation are made up by an auxiliary heating tank fitted with only 3.0 KW emersion type heaters. Above features shows user friendly arrangement inbuilt into the system