CeilingFansGuide - This program has the backing of the EPA and designates specific lighting fixtures and ceiling fans as “Energy Star” qualified. Take into consideration the size, shape and pitch of the fan blades. A fan like this is able to cover rooms of up to 625 square feet!Will the fan be indoors or outdoors?Outdoor fans are pretty hard to come by, but there are some available on the market. Even though the air is at the exact same temperature as its surrounding environment, the air movement has a chill affect that helps lower the skin temperature. Ceiling fans cost less up front, and far less to operate, and they can keep you just as cool most of the time. The brace type of products that are sold today are an alternative though they work better in theory than in practice as the old ceiling box needs to be removed before they can be installed. If a blade is misaligned, try gently bending the misaligned blade holder into proper position.