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Go BackCeiling Fan Search / Emerson Ceiling Fans / Industrial / Model HF948BS
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Emerson Heat Fan 48 Ceiling Fan Model HF948BS

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Product Description
Shown in Picture: Emerson Heat Fan 48 Ceiling Fan Model HF948BS in Brushed Steel. Brushed Steel Color finished blades are included as shown. Comes with No Included Control. Perfect for large, open spaces with high ceilings, Industrial/Commerical fans improve worker comfort year round. In winter months, these fans can help reduce your fuel by recirculating trapped ceiling heat back down to floor areas. The contoured blades provide maximum airflow compared to standard paddle type blades. This fan is designed for industrial applications and operates at an extremely high RPM. Therefore, it must be installed with the blades at least 10 feet from the floor for safe operation.
Ceiling Fan Comparison Graph
Ceiling Fan Comparison Graph
5
6,879
96
72
4.57
Breeze Rating: 5.5 (5 is best)
Wind Speed Factor: 4.57 MPH

Graph represents 48" blade span
How to read our graphs
(Read detailed interpretation below...)
This graph makes it easy to compare features between fans. Pay particular attention to the "Breeze Rating" and "MPH or Wind Speed Factor" which give you the best idea of how much cooling effect you might expect from this fan.

For questions about our comparison graph read more here or Call us at: 1-800-201-1193.

INDUSTRIAL FAN WARING!: This fan is rated as an industrial ceiling fan and therefore must be installed with the bottom of the blades at least 10 feet from the floor. That typically means that the ceiling must be at least 12 feet high in order to install an industrial ceiling fan. This is because the blades are very thin and spin at a higher RPM than typical ceiling fans, which makes it dangerous when hung at the same height as a typical fan. Call for details.

Is this a good fan for "MY" room? Find out here!

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See how this ceiling fan will look in Your Own Room!...click for details!

Included Control
No Control Control

Included Control (EM-NONE): No Included Control

16"
19.5"
NA
7.5" Wide
4.8"
48"
NA
SAVETY WARNING: This is high speed industrial ceiling fan - to prevent grave bodily harm the blades MUST be at least 10' from the floor Included Downrod Length(s): 8" and 22" - Measurements taken using 8" Downrod.

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Performance Data

Speed RPMs CFMs Amps Watts EPA Efficiency
(CFMs/Watt)
High 175
6879
0.5
72
96
Med -
-
-
-
NA
Low 75 - - - NA

"-" means that the data was not available at the time this information was published or the manufacturer simply does not test for the data that is missing.

Item Identification

BrandEmerson
Model Name Emerson Heat Fan 48
Model CodeHF948
MPN HF948BS
SKU HF948BS
UPC 030844020780
Web_ItemID60238
InternalID14659

Features & Specifications

Motor Size 188mm x 15mm Motor
Quality Rating 5 out of 5 (5 is best)
Blade Pitch Not Published
Blade Span 48" blade span
Blade Qty 3 blades
Blades ColorBrushed Steel Color finished blades (included)
RPMs 75 to 175 RPM
Speeds 3 Speeds
Reverse Function No
Indoor RatingUL Listed for use indoors
Outdoor Rating Cannot be used outdoors
Includes Uplight No
Inludes Downlight No
Can Lights be Added? No
Accepts Universal Light Kits No
VoltageUses 120 Volt electricity
ENERGY STAR Qualified No
Style Group Industrial
Approx. Weight 35 lb.
Warranty 2 Year Limited Motor Warranty
Included Downrod(s) 8" and 22"
Flushmount Capability Cannot be flush mounted
Leadwire Length Not Published

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Other Finishes for this Ceiling Fan

Heat Fan 48" (with No Control No Control - 120 Volts)

Other Closely Related Ceiling Fans:

Heat Fan 56" (with No Control No Control - 120 Volts)

Heat Fan 60" (with No Control No Control - 120 Volts)

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This label is required by the FTC to be published
by any company selling this fan on the Internet.

ENERGY INFORMATION
at High Speed

Airflow
6879
Cubic Feet
Per Minute
Airflow
72
Watts
(excludes lights)
Airflow Efficiency
96
Cubic Feet Per
Minute Per Watt

Compare: 36" to 48" ceiling fans have airflow efficiencies
ranging from approximately 71 to 86 cubic feet per
minute per watt at high speed.

Money-Saving Tip: turn off fan when leaving room

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Low, High or Vaulted Ceiling Installation Options

This ceiling fan can be installed on ceilings that are 8 or 9 feet high and can be angled up to 26 degrees without the need for any additional mounting hardware, so what is in the box will be sufficient. If you have a high ceiling or vaulted ceiling that is angled more than 26 degrees (or both), you may need a downrod or angled ceiling adapter in order to install your fan.
INDUSTRIAL FAN WARING!: This fan is rated as an industrial ceiling fan and therefore must be installed with the bottom of the blades at least 10 feet from the floor. That typically means that the ceiling must be at least 12 feet high in order to install an industrial ceiling fan. This is because the blades are very thin and spin at a higher RPM than typical ceiling fans, which makes it dangerous when hung at the same height as a typical fan.

Indoor and Outdoor Limitations

Indoor Application

UL Listed for Indoor use only

The Emerson Heat Fan 48 is UL Listed for Indoor use only, so it is not designed to be exposed to moisture or harsh elements. Do not install this fan outside your house. It is also not recommended for bathrooms that have a shower or tub or laundry rooms, both of which produce excessive amounts of moisture.

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How does the Emerson Heat Fan 48 Compare to the Average Ceiling Fan?

Ceiling Fan Comparison Graph
5
6,879
96
72
4.57
Breeze Rating: 5.5 (5 is best)
Wind Speed Factor: 4.57 MPH

Graph represents 48" blade span
How to read our graphs

Quality Rating = 5 (average is 3)
With a Quality Rating of 5, the Emerson Heat Fan 48 is among the finest quality ceiling fans made. It will run smooth and quiet without wobbling or making noise and you can let it run 24 hours a day for years on end without any worries of the motor burning out.

Wind Speed Factor: 4.57 MPH (average is about 3)
A Wind Speed Factor of 4.57 MPH gives this fan a Breeze Rating of 5.5 out of 5. This is over the top when it comes to wind speed, so this fan provides about the strongest breeze you can get from a ceiling fan, making it one of the best fans you can buy to cool you off! Aside from Quality, which accounts for smooth quiet operation and durability, the amount of wind-chill a fan can provide to cool you off is the most important consideration. Afterall, why do want a ceiling fan in the first place?

Airflow = 6879 CFM (average is about 5,000)
6879 CFM is a good amount of aiflow and is above average. We highly recommend ceiling fans that move at least this amount of air in order to provide enough wind chill effect to keep you cool. The Emerson Heat Fan 48 will allow you to raise your thermostat by several degrees, which will help you save additional money on your cooling bills (if you have AC).

Efficiency Rating = 96 CFM/Watt (average is about 86)
An Efficiency Rating of 96 is fairly average. Efficiency is defined by the EPA as the amount of airflow a fan produces (CFM) divided by the amount of electricity (Watts) it uses on high speed without any lights on. Efficiency is less important than Airflow because more CFMs allow you to raise your thermostat higher...which is where you will save the most energy. Efficiency becomes more important if you expect to operate several ceiling fans at the same time. (see calculator below)

Electrical Usage = 72 Watts (average is about 76)
72 Watts per hour is pretty close to average, so it will cost about the same to operate the Emerson Heat Fan 48 as most other ceiling fans. Use the calculator below to estimate just how much it will cost to operate this fan in "Your home".

Wind Speed Factor -vs- Efficiency: Wind Speed is KING! Ceiling fans can save you a lot on your energy bills if you use them properly to reduce your use of central air. Ceiling fans cool you off by creating a wind-chill effect, so the more wind speed a fan generates, the cooler it will make you feel. The cooler your ceiling fan can make you feel, the higher you can raise your AC thermostat to conserve energy without sacrificing your level of comfort. Raising your thermostat by 10 degrees can save you up to 40% on your cooling bills, but you cannot raise your thermostat by 10 degrees if you focus only on ceiling fans that use less energy rather than ones that generate higher wind speed. To put this in perspective: A typical central air system uses about 3500 Watts when it is running, so if a ceiling fan that uses 100 watts allows you to raise your thermostat a couple degrees higher than a more "efficient" fan that uses only 50 watts, the savings you will get by raising your AC therestat a couple degrees higher is far more than the difference of 50 watts between the two fans. With that said, a ceiling fan that uses less watts yet produces higher wind speed is a win-win.

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What does it cost to operate this ceiling fan 24 hours per day?
Fan Watts Light Watts Cost of Electricity/kWh Hours/Day Days/Year
$ hours days
w/Lights ON
0
0
(Instructions/Details)

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Blade Span CFM Wind Speed MPH Wind Speed LFM Calculate
4.57 MPH
547.41 LFM
(Calculate the wind speed of a ceiling fan by plugging in the CFM and Blade Span above)

Fan Size -vs- Wind Speed -vs- CFM

Note: The formula for calculating wind speed was revised on 1/31/2015. The previous formula did not take into account that the testing chamber (cylinder) used to determine the CFM of a fan is 8" in diameter larger than the blade span. The revised formula ads 8" to the fan diameter to account for this. The wind speed results are now slightly lower than previosly stated

"When it comes to ceiling fan size...the largest fan with the highest wind speed that will look fine in the area is the best choice!"

Ceiling fans cool you off by creating a wind-chill effect, the degree of which is determined by the wind speed produced by the fan; the higher the wind speed, the cooler you feel. It is critical to know the following; CFM is not the same as wind speed; the wind chill effect you feel from a ceiling fan is concentrated in the column of air directly beneath the fan blades; the wind chill drops off dramatically just a foot or two outside that area.

Ceiling fan manufacturers are required by the DOE to publish the airflow of each fan in CFM (Cubic Feet per Minute) which is not the same as wind speed. CFM is the volume of air being moved every minute, whereas wind speed how fast the air is moving in MPH (Miles per Hour) or LFM (Linear Feet per Minute), both of which are directly related to the amount of wind chill effect. When you compare two fans that are different sizes yet have the same CFM you will find they produce quite different wind speeds. The smaller fan must move air faster in order to move the same amount of air per minute (CFM) as the larger fan. The airflow generated by the smaller creates more wind chill because it is more concentrated and has a higher wind speed. The larger fan of equal CFM moves air over a larger area so it is less concentrated at a lower wind speed. So when determining what size fan to buy you must consider the amount of space a fan will cover (the diameter of the fan plus a foot or two), the intensity of the airflow directly beneath the fan (the wind speed) balanced with how any particular size fan will look or fit in the space. Ultimately the largest fan with the highest wind speed that will look fine in the area is the best choice for performance.

The required testing method for ceiling fans is not done in a way that translates well to real world applications, so the CFM data can be somewhat deceiving if you do not know how to interpret it.

The current required test procedure (shown left) shows a ceiling fan hanging above a 3 foot tall metal cylinder that is 8 inches wider than the ceiling fan (blade span) and stands 4 feet above the floor. Sensors are located at the bottom of the cylinder to measure the wind speed. The wind speed is then converted into CFM (Cubic Feet per Minute). Although this testing procedure can be valuable for comparing the performance of fans equal in size, it does not emulate a real application inside a home and does not make it easy to compare fans that are different sizes in order to determine the best size fan(s) for any particular application.

Therefore, the best way to compare the actual performance between fans of various sizes is to compare the wind speed. The wind speed of a ceiling fan can be mathematically calculated based on the CFM and Blade Span. Here is a comparison where we performed the calculations between 3 fans of different blade spans and CFMs. The largest fan has the highest CFM yet the smallest fan produces the highest wind speed.

84" Fan with CFM of 10000 produces wind speed of 2.46 MPH (216.62 LFM)
52" Fan with CFM of 6500 produces wind speed of 3.76 MPH (331.04 LFM )

The above example shows how deceiving CFM data can be. Even though the 52" fan moves 35% less air than the 84" fan, the intensity of the breeze that produces a wind-chill effect is over 50% more than that of the larger fan and will make you feel much cooler if you are directly beneath it. So, to cover a larger area, two or more smaller fans with good performance may be a better choice than a single large higher CFM fan.

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Included With This Fan (as shown):
HF948BS Ceiling Fan Motor: HF948BS in Brushed Steel
$179.00
Shipping & Sales Tax: FREE!
Itemized Total Price $179.00
MSRP: $298.00
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Sale Price: $179.00
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IMPORTANT NOTE

This fan does not include a control. You will need to purchase a control in order to operate this fan. click on "Extra Controls" to make your selection. Otherwise, you will need to supply your own control (which may not be compatible).

Emerson HF948BS Specs
MfgCodeEM
Part NumberHF948BS
Our Part NumberEM-HF948BS
UPC030844020780
Model NamePro Series in Brushed Steel
Description: Features: *48" blade span with contoured metal blades *Supplied with "J" hook for wasy installation and smooth performance *Two downrods: 8" and 22" *Blades must be mounted at least 10 feet above the floor *Single speed fan uses 120 Volts *Fan hung at 20 feet covers 1,500 sq. ft. *Fan hung at 30 feet covers 1,200 sq. ft. *Fan hung at 40 feet covers 700 sq. ft. *Not reversible
Product Name48" Heat Fan
FamilyPro Series
FinishBrushed Steel
StylePro Series
# of Blades3
Span48"
Pitchcontoured
Blades Included?Yes
Blade FinishBrushed Steel
Number of SpeedsInfinitely Variable
Reverse FunctionNo
Motor188x15mm
Motor Warranty2-Year
Energy StarNo
Airflow CFM (High Speed)6879
Watts (High Speed)72
Amps (High Speed)0.5
Efficiency (CFM/Watt)95
RPM75-175
Indoor/OutdoorIndoor
ControlSold Separately
Downrod Length8.0" & 22.0"
Accepts 2.5" DownrodNo
A (Height Ceiling to Bottom)11
B (Height Ceiling to Blade)12
C (Housing Diameter)6
D (Canopy Diameter)4.8
Keywordsceiling fan, ceiling fans, ceilings fan, industrial fan, industrial fans, modern ceiling fan, modern ceiling fans, large ceiling fan
Compatible with (Controls)SW46, SW95, SW93, SW81, SW82
Compatible with Slope Ceiling Kit)Not compatible - J hook mounting
Item Weight18.7
Carton Weight24
Carton Length29
Carton Width12.5
Carton Depth10
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Ceiling Fan Comparison Graph
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Answers to Recent Ceiling Fans Questions Posted To This Page
  1. Question #9372 - Posted: 2/9/2013 3:13:15 PM

    Ceiling Fans Question - Emerson Model HF948BS

    View  model HF948BS
    HF948BS - http://www.hansenwholesale.com/ceilingfans/emerson/model.asp?ProdNo=HF948BS

    QUESTION: your add states that this fan is a high speed industrial type. I am considering it for my home.These fan controls slow the fan down to a safe speed so it can be used in the home.Is this correct? I do have a vaulted ceiling where I intend to install it if I purchase your product. Please respond. The fan is an Emerson48 heat- HF948BS

    ANSWER: Industrial fans such as the Emerson HF948BS have metal blades and are NOT allowed for use in residential applications regardless of what type of control you have or what height the fan is hung. This is according to national building code standards. For a similar style fan that does not have metal blades and IS rated for use indoors I would recommend the Emerson Loft.


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