Factors like climate, site, design, and heating needs of a house determine what kind of hot water solar system is best for your home. Active systems require an electrical pump, whereas passive systems work without electricity and rely on gravity.
A heat transfer fluid plays a vital role in the operation of solar water heating systems. It carries heat energy from the solar collectors through the heat exchanger and finally into the tanks that store the heat.
A solar panel collects light energy from the sun and turns it into electricity. Roof mounting is a common form of positioning solar panels. By mounting on the roof, you put the photovoltaic cells in a location that gives them a full dose of sunshine.