Seasonal Rotation

  1. Ceiling fans circulate air at low speed and high volume. The large paddle blades angled at a pitch between 10 and 16 degrees rotate slowly so papers are not blown around nor activities disrupted in the room. In the summer cooling mode, the blades turn counter-clockwise, pulling air along the ceiling into the fan and directing it straight down into the room to cool occupants. In the winter setting, clockwise rotation draws air up from the floor, displacing layers of warm air trapped at the ceiling out toward the walls, then down into living spaces to provide warmth.

National Building Code Requirement

The national standard distance from the floor to the fan is shown as the minimum distance allowed, not what may be optimal for your situation. This minimum distance is not taken at the bottom of the ceiling fan, but rather taken for the ceiling fan blades. The distance required is a minimum of 7 feet above the floor to the fan blades. The bottom of the fan, or its light (if equipped) can be below this distance. There is no code for how far below the 7′ mark the ceiling fan can be, but remember, you should not have the blades drop below a 7’ distance from the floor, if you’re wanting the installation to pass building code.

Most ceiling fans will come packaged with a downrod somewhere in-between 3” and 6”. With the majority of these, the fans are designed for use on a standard celling height of 8 feet. For optimal airflow you will typically find the blades will hang 10 inches from the ceiling (larger fans may need more space). This insures the fan passes building code when installed from a standard 8 foot ceiling.


Large Ceiling Fans for Any Style

Because ceiling fans are also a design element, they come in just about every style you can think of. Sleek and modern options complete the look of modern spaces without seeming large and overbearing. Whether you are looking for a fan that will fade into the background or make a bold statement, there are plenty of unique designs that can complement any style décor for your modern space.

Maverick Super Max 88 Inch Ceiling Fan by Monte Carlo Fan

Featuring a sleek, modern silhouette, the Maverick Super Max 88 Inch Ceiling Fan by Monte Carlo Fan has softly rounded blades and elegantly simple housing, making it a good choice extra-high ceilings. It brings an extra air of peace and serenity to whatever space you hang it in.

HVAC metrics:

SEER = (1 × EER100% + 42 × EER75% + 45 × EER50% + 12 × EER25%)/100

EER = BTUcooling/W

HSPF = BTUheating/W

COP = Q (useful heat)/W (input work)

ACH = CFM x 60/Area x Heightceiling

Total Heat (BTU/hr.) = 4.5 x CFM x Δh (std. air)

Sensible Heat (BTU/hr) = 1.1 x CFM x Δt (std. air)

Latent Heat (BTU/hr) = 0.69 x CFM x Δgr. (std. air)

1 HP = 746 Watts

1 kW = 3413 BTU

How Low Should You Go?

  1. While the National Electrical Code (NEC) standardizes ceiling fan installation issues such as junction boxes for proper support, the NEC includes no specific language stipulating ceiling fan height. Generally speaking, however, the code recognizes manufacturer’s standards for acceptable installation of products when these are backed by testing, inspection and product evaluation. If an installation conflicts with the preponderance of reputable manufacturer’s recommendations, it may be assumed to be in conflict with the NEC. Installation procedures provided by most ceiling fan manufacturers, as well as the recommendation of the International Association of Certified Home Inspectors, state that fans should be installed so blades are suspended no lower than seven feet from the floor.

In Summary

Most ceiling fans are designed to hang from standard ceiling heights of 8’ to 9.5’ tall, without the need to add a longer downrod. If your ceiling is higher than this you will need to use a longer downrod than what the ceiling fan will probably be packaged with. How long should of a downrod you purchase should be determined by how you intend to use your new fan, not simply by looking at a generic chart designed to give optimal airflow for summer only usage.

For more information, or help in deciding which distance will be best for your needs, give our customer service team a call. All you’ll need to do is tell us your ceiling height, and how you plan to use your new ceiling fan, and we will be more than happy to do all of the calculating for you.


Leave a Reply

Your email address will not be published.