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Updated with new material on thermodynamics to provide a blueprint for controlling energy use in buildings, this reference will save you countless hours doing energy feasibility studies and associated calculations. A practicing engineer, the author shares his secrets for simplifying complex energy calculations and shows how to use his unique, time-saving methods. Using concise, innovative decision-making tools, he demonstrates how to cut through the maze of detail so that you can determine whether to invest real time and money into developing details on a project under consideration. Key topics covered include the walk-through audit, lighting, pumps, fans, motors, insulation, fuel switching, heat recovery, HVAC, and energy myths. The book also supplies a summary of energy calculations and an appendix of the author's retrofit rules.