IF you do anything, just have the flexible duct replaced. Do not
even think about having your ducts cleaned.
And in dallas, you will be wise to have the installer use the higher
rated R value on the new ductwork. It will lower your electric bill.
The "HVAC hygiene industry" !? My, don't they make it sound like a
legitimate business. Professional, even. Why, they have an association.
The "National Magnetic Water Treatment Association"? Serving the non-
powered water softening industry.
The "National Liquid Siding and Stucco Assocation"? Serving the thickened
emulsion-suspension exterior wall coating industry.
The "National Tankless Water Heater Association"? ...
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