Fan Buying Guide
Types of Fans
Benefits of Fans vs. AC:
• Fans are less expensive to buy and cheaper to operate
• Fans can be set up instantly and require no special hardware
• Fans can be targeted to specific areas
• Fans combined with AC can reduce utility costs
The size, position and speed of the blades determine how effectively your fan delivers the cooling effect to your room. The blades on axial-flow fans typically face in the same direction as the airflow. The axial-flow design is used in many common fan types, including pedestal, table and ceiling fans. The blades on centrifugal fans are perpendicular to the direction the air is blowing. The high pressure of centrifugal fans makes them well suited to industrial cooling and removing moisture.
A bit of simple arithmetic will help you to determine how much power you need to achieve the cooling effect without wasting energy. Fan power is measured in cubic feet per minute (CFM). Most fans will come with a CFM rating indicating how quickly they can circulate air within a given area. To measure the cubic feet of your room, measure the distance from the floor to the ceiling and then multiply that number by the square footage of the floor (width x length).
Operational Noise +
Ideally, your fan will be completely silent in operation, though that’s rarely the case. As a general rule, the noise goes down as the price goes up. You can control the noise level of your fan (measured in decibels or dBs) by controlling the speed. Running your fan at low or moderate speed settings will keep noise to a minimum. If you find it’s necessary to use the highest speed all the time, it could mean that you need a bigger or more efficient fan for your space.
The back-and-forth motion of most tower, pedestal and table fans is called oscillation. As well as moving left to right, some fans also move up and down. Usually, you can control the range of oscillation via buttons on the fan chassis or remote control. Oscillation can be disabled as well if you desire the air to flow toward a specific spot. Some tower fans have adjustable louvers that direct the airflow according to your settings.
Remotes & Timers +
Remote controls and programmable times are standard equipment on most types of residential fans. A remote lets you conveniently control the speed and direction of the airflow from wherever you are. Adjusting the airflow to account for changing conditions is easy with a remote. A timer can pre-set an operating cycle for several hours and turn off the fan when the cycle is complete. It will give peace of mind to know you’re not putting an unnecessary load on the environment — or running up your energy bill.
Some tower fans have built-in ionizers that clean your air and eliminate static electricity. The machine emits negative ions that attach themselves to microscopic particles and allergens and filter them before the air is re-circulated. Homes, offices and other indoor environments are notoriously lacking in negative ions, which are said to contribute to a general feeling of wellness and high energy.
Accessories & Related Products:
Fan Maintenance Tips:
• Vacuum to remove light dust
• Follow manufacturers’ directions to clean or replace screens and filters on window and tower fans
• If your fan develops a wobble, check the bolts attaching the blades to the fan motor
• Turn off your fan when you don’t need it to save on wear and tear