The diagram illustrates the process of producing warm water using a square box. The method begins by gathering all the necessary materials, including a box with two holes at opposite edges for the attached tubes to facilitate circulation.
The next step involves adding a colorless layer to the upper surface of the square box by securing it at each corner. Once the transparent top is in place, position the box in an area that receives ample sunlight. Ensure that both openings of the tubes are open to allow for air circulation inside the box.
As the sunlight penetrates the colorless layer, it transforms into heat energy, causing the temperature inside the box to rise. This process heats the incoming fresh air, which becomes warm as it exits the box. It is advisable to check the temperature inside the square before connecting the two holes with a water pipe.
Finally, after installing the water connector between the inlet and outlet, spray water into the square tube. As the water exits, it will be heated, resulting in warm water.