Ceiling fan blades may not be the first thing you think about when shopping for a new fan, but you may be surprised by how much blades affect both the aesthetics and performance of a fan. Whether you are looking for a new fan or want to replace an existing fan's blades, there are several factors to consider. Some blades are created to withstand outdoor environments, while others are meant to lower energy costs inside your home. By understanding the importance of fan blades, their types, and in which rooms they are suitable, you can make your home's fan work for you-and even reduce your cooling costs in the process.
How Many Blades?
There is a common misconception that five fan blades work better than four or even three blades. Homeowners assume that five blades means better air movement, circulation, and less cooling costs, but in reality, all five blades do is add aesthetic appeal. According to Energy Star, four blades do the same job as five-what matters is the strength of the motor powering the fan.
Blade Span
Blade span refers to the length of a blade. The most common fan blade spans are 52 and 42 inches. Longer blades work best for larger rooms and create softer, more comfortable airflow. Shorter blades offer more direct airflow and are ideal for smaller rooms. The volume of air is not impacted by blade span; the motor determines it.
Blade Types
For general, in-home use, fan blades are made from particleboard or medium-density fiberboard (MDF). High-quality fan blades, on the other hand, are made from furniture-grade, real hardwood-many with hand-carved intricate designs. Regardless of the material from which they are made, blades come in a wide variety of colors, patterns, and styles to match any room's décor. If you are shopping for a fan that will be used outdoors, you will want to look for damp- or wet-rated fan blades.
Consider Your Ceiling
The type and size of your ceiling makes a big difference when choosing a fan for your home. Low ceilings need what is referred to as a flush mount or "hugger" fan. These allow enough head room while still providing good airflow. Higher ceilings are ideal for fans with downrods that allow them to hang at a preferred height. You can also install a fan on a vaulted ceiling with a special mount and a downrod that is long enough to allow the fan blades to turn without striking the ceiling.
Ceiling Fans and Energy-Efficiency
Just about every homeowner wants to go "green" and save on their monthly heating and cooling costs. Fans are a great way to lower energy costs for the winter and summer months, but only if they are constructed properly. According to Energy Star, the pitch of the ceiling fan's blades helps, but it is only part of the equation. Higher pitches move more air throughout the room, but the motor's speed and design, blade design, length, and material all impact how effective it is as a whole. For some fan models, higher pitch does not mean more savings, especially if the unit has a lower-efficiency motor installed.
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