Ceiling fans keep you cooler in summer and warmer in winter using
about as much power as a former 60-watt light bulb, which costs only 2-3c
per hour to run. Choose a fan with a DC motor, which uses 70% less
energy than standard AC fans, and you’ll reduce running costs to as
little as 1c per hour.
CEILING FANS IN SUMMER
While a ceiling fan does not necessarily lower the temperature, it does
make the room feel cooler by providing a circulatory breeze. Effective
circulation can make you feel up to 8 degrees cooler and reduce air
conditioning bills by up to 40%.
CEILING FANS IN WINTER
In the winter months, you should run your ceiling fan in the reverse
mode. This pushes warm air up against the ceiling and then down the
walls, gently re-circulating warm air through the room. This technique
has been proven to lower heating costs by as much as 10%. The
calculations on costs and savings are approximate only and may vary
according to fan size and use of fan.