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Energy Series: What About the Ductwork?

2901-9003 (BSE-291NP) Air distribution or duct systems are designed to supply rooms with air that is "conditioned"--that is, heated or cooled by the heating, ventilation, and air conditioning (HVAC) equipment--and to recirculate or return the same volume of air back to the HVAC equipment. BW, DS, 24#, Staple upper left, 3 pages

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