the design and installation of a DIY solar water heating system. It breaks down the project into a plumbing schematic, a structural assembly guide, and a detailed view of the solar collector itself. 1. SYSTEM OVERVIEW (TOP LEFT) This section shows how the water flows through a residential setup. • The Cycle: Tap water enters a regulator tank at the top. From there, it flows down into a solar collector. • Heating: As the water sits in the collector, it is heated by the sun and rises (thermosiphon