In the May/June Issue of Home Energy,  Bruce Manclark writes that his company has been in the HVAC business for eight years. "Last year, our crews passed the 100- mile mark—they sealed their 100th mile of ductwork. They have applied somewhere
around 16,000 gallons of duct mastic, conducted 8,000 Duct Blaster tests,
increased comfort for scores of homeowners, saved loads of Btus, and well …
profoundly messed up a few heating and cooling systems."

Read on about a few of the most interesting examples of their messing up—perhaps by reading these, you’ll avoid making the mistakes that we made!

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