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Duct Cleaning
Duct Cleaning
In a typical forced-air system with leaky ducts and an inefficient filter, the ducts are usually contaminated with a wide variety of particulates and microorganisms—all directly exposed to the air being breathed by the occupants.
Heating
Heating and Cooling
From The Healthy House Answer Book: Answers to the 133 most commonly asked questions. Questions 64-71.
Duct Cleaning
Setting the Record Straight - Is Sporicidin Safe for Duct Cleaning?
Responding to a question from our readers.
Duct Cleaning
Should I Clean My Air Ducts?
If not properly installed, maintained and operated, air duct components may become contaminated with particles of dust, pollen or other debris.
Ducts
Testing Duct Testers
According to DOE’s Building America program data, typical, residential ductwork efficiency is about 67%. That means that if you install a 90% efficient furnace, your system efficiency would be just over 60%. Another way to look at this is that ducts lose 25–40% of the energy that moves through them. Just from a practical standpoint it makes sense to improve the delivery system. Shorter, straighter, better engineered and installed ductwork will improve delivery efficiency.
Ducts
Those Wild Ducts in Your Walls
Typical duct systems lose 25 to 40 percent of the heating or cooling energy put out by the central furnace, heat pump, or air conditioner.

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