Ceiling Fan / April 24, 2018 / Glenna Gillespie
Westinghouse Lighting Corporation has a line of fans that captures all of these needs and they claim can be installed in 15 minutes on average. The weak link in all of these improvements is the ceiling box itself. This is the component that the fan is attached to and must bear the static and dynamic loads of the fans operation. It also houses the electrical wiring for the fan. This utilitarian component has been under going improvement for the past 10 years or more to make its' installation quicker, cheaper and easier than the traditional metal box of yesterday.
The average nail-on plastic ceiling box is rated for only supporting a 35 pound static load. They are also not fan-rated. This requires that the ceiling box be replaced with a fan-rated box before the installation of a ceiling fan. Fan-rated boxes are capable of holding 70 pound loads and are rated for this application. This is easier said than done! The nail-on products do not lend themselves to be reinforced easily since labor savings have also been applied to the construction of homes themselves. In many circumstance the average home does not have an attic, only a narrow crawl space between the trusses is provided. This combined with blow-in insulation makes the location of the ceiling box difficult if not impossible when a fan is to be hung on an upper floor.