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At least 50% of our service calls are dirt related. This picture is just one example of the condition of air-handling systems we find every day. The cost of eliminating the dirt and maintaining clean air handling systems repeatedly pays for itself in reduced energy costs. Even if that were not the case, the cost of cleaning these systems would pale, in comparison to even the most modest of indoor air quality complaints, requiring litigation.
Indoor air quality may well be the issue that drives schools and commercial buildings to implementing this simple six step maintenance recovery program.
As you can see by the above picture, it doesn't take a rocket scientist to see that cleaning dirty heating coils like this, besides improving air quality, will also help provide greater comfort and efficiency. Can you imagine the efficiency of the filter, and the frequency with which it was changed, that allowed this condition to occur? Believe it or not, if your home has air-conditioning, and you're using standard fiberglass filters, your air-conditioning coil probably looks a lot like this!
These pictures illustrate the process of high-pressure spray washing heat transfer coils. In this case, Owen Johnson is cleaning an air-cooled condenser, the device used to dissipate heat to the outside air from the air conditioning process. According to the Educational Facilities Laboratory, "Even a small layer of debris can affect the heat transfer efficiency by 25%."
The first picture on this page is that of a heating coil, that was inadequately protected by an air filtering system. Air-cooled condensers have no filters to help protect the coil from collecting all the cottonwood lint, dandelion seeds, leaves, and so on. Every air-cooled condenser requires annual washing with high pressure water systems.
Even the air-cooled condenser on your home refrigerator and freezer require annual cleaning. We suggest doing this yearly maintenance on Earth Day.
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