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Duct Leakage Chaff

By Energy Efficiency, Energy Rant 3 Comments
Due to duct leakage, only 57% of heat generated in a home furnace is delivered to conditioned spaces.  OMG!  Run for your lives.  Big deal. I have overheard conversations at conferences and other networking gigs that include statements like, “We are so focused on envelope tightness, insulation, energy-saving windows, and efficient appliances, but meanwhile we are wasting almost half the heat produced in an energy efficient furnace.”  Not so fast. In mechanical engineering, we have the first and second laws of thermodynamics.  The first law is like a change machine – conservation of money.  Put a piece of cotton-infused paper…
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