From time to time, I have Tim Bob from BT Products send me a guest blog. I have referred Tim Bob to many of my clients for HVAC service and repair. He has also done a fantastic job of servicing the HVAC unit in my own home. Tim Bob's number is 214-762-2598 and he services the entire DFW area, including North Dallas and Plano.
This time, he wrote about some myths and fallacies related to air conditioning, including the funny myth that criminals sometimes escape through air ducts.
Enjoy!
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Since the seasons are changing, now is the time to discuss some fallacies related to air conditioning.
•- Misting systems that precool your outside AC condensing unit.
They do work only if the water is pure. Tap water contains minerals that build up a layer of calcium on your AC coil. This degrades the efficiency of the AC and cannot be cleaned off. This is the same build-up you get on glass ware called water spots. Over time, the build-up can get quite thick and ruins your AC condenser unit.
•- Room air coolers that use "glacier blocks" that you chill in your house refrigerator.
The manufacture claims you can save money by raising your AC thermostat setting and comfortably cool your bedroom. First, it won't cool long and won't cool anything more than the area few feet in front of it. This appliance blows air across a "glacier" block of ice. Second, one must prechill these glacier blocks of ice in the refrigerator. This results in additional heat added to your kitchen equal to the heat removed by the Room air coolers. No help to your central AC system here.
•- Turning the AC thermostat down to 55 degrees to speed up the cooling of your house.
The AC unit is not like a gas pedal on a car. It does not work harder the farther you push it. It is more like an on/off switch. Either it runs or stops running when it cools the room. Very, very few house AC systems do work harder the further you push the thermostat down. Very few expensive systems.
•- Crawling through ductwork is an easy way for a crook to escape.
The movies make this look easy. First, the layer of dust you inhale would keep you sneezing for a week. Ductwork is filthy. Second, most ductwork is too small to fit through. The ducts have sharp turns that you must negotiate, and its pitch black inside. The points of sharp screws would tear you up. Thirdly, ductwork is not very strong and would bend and fall apart with the weight of an escapee inside. Between the sneezing and the banging of crawling through ductwork, it would not be a quiet escape.
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