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air flow

Duct Leakage; The Results Are In

By Energy Efficiency, Energy Rant 5 Comments
About two years ago, I wrote Duct Leakage Chaff, which explained that residential duct leakage is a mole hill, a red herring, a boogeyman.  I recently reviewed a report that nails my assertions from June 2013. The program evaluation (residential HVAC tune-up) was thorough, likely expensive, but worthwhile.  Too often, not just in evaluation, but any professional service industry, contracts go to the low-ball bidder.  The low-ball bidder either uses the tactic because it’s the only weapon they have, they don’t understand the challenge of doing a decent job (ignorance), or providing actionable value simply isn’t that important to them.The…
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