"Energy is consumed by HVAC systems through a number of processes. Air is typically distributed through the ductwork via an electrically‐powered fan. Cooling coils remove heat from the air. Heating coils add heat to the air. Through normal HVAC usage, particulates in the air slowlycollects on the surfaces of various HVAC components, resulting in a gradual loss of energy efficiency. Some loss of efficiency via a single dirty component may be minor. When the loss through each component is added up, however, the impact could be considerable. Generally, the greater the buildup, the greater the energy loss. Removal of the buildup of particulate on HVAC components restores energy performance to the system." 
"We were pleasantly surprised with the professionalism of the specialists. The unit was delivered and installed as quoted. The unit is performing as advertised. The install team were neat, clean and did a clean install. They went over all aspects of the sales / install and answered all our questions. We can safely recommend Waychoff's to our friends and business associates. We look forward to many years of continued comfort and service from our Trane and from Waychoff's."
With your air system and air ducts in a constant cleaned state, you and those in your family can be in much healthier or at the very least minimize the symptoms experienced when the indoor air system was dirty and contaminated. In addition to improving health related symptoms, good indoor air quality in the home can lead to better breathing for deeper and undisturbed sleep. According to some doctors, improved undisturbed sleep can lead to a healthier life overall. While in some cases poor indoor air quality can be linked to asthma.
On the other hand there are many more air duct cleaning companies that will properly clean the air system and air ducts and use commercial negative air duct cleaning vacuums with at least 2,000 CFMs of vacuum power and utilize proper agitating tools to move the contaminates within the duct work to be captured with HEPA filters and contained by the air duct cleaning vacuum equipment.

"Energy is consumed by HVAC systems through a number of processes. Air is typically distributed through the ductwork via an electrically‐powered fan. Cooling coils remove heat from the air. Heating coils add heat to the air. Through normal HVAC usage, particulates in the air slowlycollects on the surfaces of various HVAC components, resulting in a gradual loss of energy efficiency. Some loss of efficiency via a single dirty component may be minor. When the loss through each component is added up, however, the impact could be considerable. Generally, the greater the buildup, the greater the energy loss. Removal of the buildup of particulate on HVAC components restores energy performance to the system." 

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