ELSTEADLIGHTING.COM FANS
667
AC vs DC
AC MOTOR
ADVANTAGES
• Less expensive than DC motors
• Great reliability
• Good energy efficiency
• 3-speed and 4-speed options are common
DC MOTOR
ADVANTAGES
• More efficient than AC motors - using up to
70% less electricity
• Virtually silent operation
• Offers more power and torque while
using less energy
• 6-speed options are common
CEILING FAN PERFORMANCE GUIDE
AIR PERFORMANCE
AIRFLOW
Cubic ft. per minute on high
7587
POWER USAGE
Watts on High (excludes lights)
34
AIRFLOW
EFFICIENCY
Cubic ft. per minute per Watt
220
AIRFLOW is measured in Cubic Feet per Minute (CFM). The higher
the airflow number, the more the air the fan is circulating.
POWER USAGE for your fan motor is measured in watts. The lower
the watts, the less energy the fan consumes. DC motor ceiling fans
are the most energy-efficient, using the least amount of wattage.
AIRFLOW EFFICIENCY gives you the total picture: dividing the
fan’s CFMs by the watts of power it consumes. The higher the airflow
efficiency number, the more air the fan is moving per watt.
Throughout the catalogue, you will see detailed fan specifications with the table below included. This example is a quick
guide to explain what each of the measures mean, and how to spot a fan with the right specifications for you.
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FANS ELSTEADLIGHTING.COM
666
LED
REDUCE ENERGY COSTS IN YOUR HOME
CIRCULATE AIR WITH THE SEASONS
When its hot outside, set the fan to rotate in
an anti-clockwise direction. The blades will push air
down – creating a breeze or cooling effect. A fan can
make you feel 4°C cooler than the temperature of
your surroundings.
In the winter, set the fan to rotate clockwise.
The blades will pull the air up and around, moving the
warm air that rises to the ceiling back down to the
living space.
The effect can help you adjust your thermostat +2.2ºC (4ºF) during the Summer and -1.1ºC (2ºF) in the Winter.
This makes a fan the only money-saving appliance in your home as it contributes to lower energy costs.
(This is not applicable in the same way to outdoor fans.)
ECO-FRIENDLY
LIGHTING
You may wish to combine overhead lighting with your
ceiling fan. Some of our fans have integrated lights with
LED modules that use very little energy. Look out for
the LED symbol on each product page to find these
models.
All our other fans that come with lights can take
replaceable (retrofit) LED bulbs, so you can choose to
make them more eco-friendly.
CUSTOMISATION
Some fans come with 2 sided blades so that you can
customise the colour choice when you refresh your
home décor.
All semi-flush models can be extended with additional
downrods to bring the fan lower in rooms with high
ceilings. See p719 for downrods.
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