Archive for the ‘ceiling’ tag
Ceiling Fans ?Some Essential Facts to Consider
The first artificial wind-chill methods as used by animals in nature was duplicated by royalty and wealthy persons of early Assyria and Egypt, who employed slaves or servants waving large leaves to cool them down on hot days. Many centuries later, in 1882, Diehl introduced his invention of the electric ceiling fan.His device was a bubble-blade adaptation of the well known belt driven fan with an in-built electric motor. By the end of the 1880s, the 揇iehl Electric” was sweeping the country, and by the late 1920s, no self-respecting restaurant, drug store, ice cream shop, or elegant dining room, was without a ceiling fan as part of their decor and method of ventilation. Ceiling fans can reduce cooling costs. In the summer, a breeze created by a good ceiling fan can make you feel between two and six degrees cooler.There are many ceiling fan designs and styles, and it is important that one considers the following options carefully before purchasing a ceiling fan:
Fan Motors: Good ceiling fans have a motor size and precision ground motor windings matched to the length of the blades. This ensures that the fan moves the air efficiently, even with continuous use, and uses less energy to run. If the motor or blades are improperly balanced, vibrations will occur, even at slow speed. Fans that are built for outdoor use have motors that are specially designed to withstand moisture and fluctuations in temperature. Fan Blades: Fan blades come in all sorts of wonderful shapes and patterns. However it is important that the fan blades chosen will offer a balanced performance for a stable operation. Fan blades should be protected with a sealant to avoid the warping effects of moisture. Fan blade pitches range from 8 to 15 degrees - the higher the pitch, the more air the fan will circulate at slower speeds.The number of blades in a ceiling fan ranges from three to five, but this number has little effect on the amount of cool air the fan produces.
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