Ceiling Fans for Energy Conservation

Tell us your tips on saving energy and reducing HVAC costs.

Ceiling Fans for Energy Conservation

Postby maythompson » Tue Jul 10, 2012 1:54 am

A correctly sized and placed ceiling fan can lower air temperature in a
room by as much as eight degrees. In the winter, ceiling fans can be set to
run in reverse, which helps circulate warm air around a room.


Ceiling fans are available in a vast array of shapes, sizes, colors, and
blade widths, so they can be placed in nearly any, and every, room in the
house. The American Lighting Association suggests the following tips when
choosing a -



- Use 36- inch and smaller fans in rooms up to 75 square feet large
- Use 36- to 42-inch fans in rooms up to 144 square feet
- 50- to 54-inch fans are efficient in rooms of up to 225 square feet

Optimally, ceiling fans should be placed at least seven feet above the
floor, while 8 to 9 feet from the floor is even better. If you have low
ceilings, choose low profile fans, so they won’t be in the way.


Ceiling fans for damp rooms, like a bathroom, will be UL-listed for damp
locations, while ceiling fans that are appropriate for porches and patios
will be UL-listed for wet locations. When choosing a ceiling fan for these
locations, be sure it has a corrosion and tarnish resistant high quality
finish.


Ceiling fans are very easy to install, even remote controlled fans, and
most come with complete step-by-step instructions so that even a novice can
install them.


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maythompson
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- Ceiling Fans for Energy Conservation

Postby Freon » Wed Jul 11, 2012 10:38 am

You said, "A correctly sized and placed ceiling fan can lower air temperature in a room by as much as eight degrees..." Would you kindly state your source for this statement of fact? Unless there's a mini AC in the fan, a ceiling fan will not change the average ambient air temperature of a room. However it will change the perceived "feels like" temperature and it will make the average ambient air temperature more uniform from floor to ceiling.
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- Ceiling Fans for Energy Conservation

Postby mcnakamura » Tue Aug 07, 2012 8:37 pm

There are any number of venting systems available including soffit vents, gable vents, cupola vents, ridge vents, turbine vents, power vents, and static vents. A roofing specialist can help you determine which type would be best for your home depending on climate, size, and roof slope configurations. Proper ventilation requires both intake vents and exhaust vents. Intake vents, which let air in, are usually located at the eaves or edges of the roof, and exhaust vents, which release air, are usually located along the ridge or uppermost portion of the roof. This allows for the earlier mentioned natural effects of wind pressure and rising heat to ventilate the underside of the roof and attic. Be sure to check that attic insulation is not blocking any of the vents. If this happens, baffles can be used to hold it back.
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