The graphics on this page help show the construction and operation of an evacuated tube solar hot water collector, and control of the system. More technical photos, which help with collector assembly, are shown on the manuals tab.
Thirty Tube Collector model SFB 304715
Heat Pipe Details
Cut-away view showing flow through the manifold. At the Alpine Solar showroom you can examine inside the equipment, as well as functional systems.
Pump Controller using temperature difference to start solar pump. When the collector is hotter then the water storage tank (due to sunshine), the pump is turned on. When the pump is on, solar fluid circulates between the collector and the water storage tank.