How High should Ceiling Fan be from Floor

How High should Ceiling Fan be from Floor

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HVAC metrics:

SEER = (1 × EER100% + 42 × EER75% + 45 × EER50% + 12 × EER250%)/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 High Is Too High?

  1. In cooling mode, at least eight inches of clearance between the fan and the ceiling is required to allow optimum airflow into the fan blades. For every two inches of ceiling clearance below this minimum, airflow through the fan decreases by as much as 25 percent. Most ceiling fans come with three-inch downrods that suspend the fan blades eight inches from the ceiling. In a room with a standard eight-foot ceiling, this leaves approximately 7 feet 4 inches of clearance from the floor.

Large Fans for Rooms with Vaulted Ceilings

With so many open-concept homes featuring great rooms, large fans are becoming increasingly common. Ceiling fans for great rooms generally have a blade span of 60-96 inches. Because proper air circulation is key for gathering spaces like kitchens or living rooms, getting the blade span right is key.

Haiku Outdoor Rated 60 Inch Ceiling Fan by Big Ass Fans

If your room has a vaulted ceiling, you’ll need a long enough downrod, based on the pitch of the faulted ceiling. The square footage of the room should also be considered when figuring out the best blade span diameter of your ceiling fan to accommodate the size and design of your room. Made with aircraft-grade aluminum finishes, the Haiku 60-Inch Ceiling Fan by Big Ass Fans represents the pinnacle of innovation and style in ceiling fans.

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.

Consider the Layout of Your Room

The right size fan for a room is not determined just by the size of the room. The layout of the room and where you plan to hang the fan also play a role. The larger the blade span, the more area the fan will cover, and the closer you are to the fan, the cooler you will feel.

I6 Outdoor Rated 72 Inch Ceiling Fan by Big Ass Fans

The engaging design and modern convenience make the I6 72 Inch Ceiling Fan by Big Ass Fans a centerpiece for conversation and a stunning example of smart home integration and energy efficiency. It works well centered in the living room and adds a stylish aesthetic to the space. It’s the ideal mix of form, function, and style. All Big Ass Ceiling Fans come with cutting-edge smart technology.


  • If you experience a breaker overload during testing, call a licensed electrician for help.
  • If the light switch does not power the fan, there’s most likely a loose wire. Turn the power back off and double check each of your connections.
  • If the fan wobbles during operation, check and tighten screws at each join, from the blade brackets to the mounting bracket.
  • To circulate warm air during winter, reverse the direction of the fan. Warm air rises, and turning on your circular fan in winter forces the heat back down. Some models have a reversing switch on the fan housing. Others require you to manually reverse the direction of the blades by flipping them. Check your model’s manual for details.

*Legal Notice: Destination Lighting content is for information only. It is strongly recommended that you consult a professional before attempting any lighting or wiring projects. The company is not liable for misuse of its content.


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