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With the cost of energy rising and environmental concerns becoming ever more mainstream, many homeowners and contractors are seeking to offset the energy cost of their homes or outbuildings in ecologically-friendly ways. The Walton Solar Thermal kit describes one means of achieving this goal. It provides complete information on how to build and install a solar thermal system that can offset a significant fraction of a building's heating costs using sunlight. This manual presents the three parts of a solar thermal system - the collector, the mechanical system, and the control system - and lays...