Ceiling Fans
Big Ass FansMK-i61-071806
ENERGY STAR certified · Nov 2024 · Most Efficient
- Estimated annual energy use
- 127.9 kWh/yr
- Fan diameter
- 84 in
- Airflow per watt
- 418 CFM/W
Running cost calculator
Where your state sits among all 51
Cost to run a ceiling fan in every state
Replacing an old ceiling fan with this one? Savings calculator
How this is calculated
- ENERGY STAR lists the power this model draws but no yearly figure. We estimate the annual energy use ourselves, assuming 8 hours a day at the average of its low-speed and high-speed power, with standby power for the other 16 hours, every day of the year. Your use will differ, so treat the cost as a guide.
- Yearly cost = annual kWh × your rate. Monthly cost is the yearly cost divided by 12, a flat average. Five-year cost keeps the rate constant; prices will change.
- Statewide averages are not your utility’s tariff. Use your bill’s rate for a closer number.
- We do not estimate watts or hourly cost: the source data does not include them.
How it compares
Among 14 ENERGY STAR certified low-mount HSSD fan only models with a similar fan diameter (71.4 to 96.6 in), this one ranks 2nd lowest in annual energy use.
- Median of these models
- 135 kWh/yr
- This model vs the median
- -5%
- Uses less than
- 86% of them
Compared with every comparable model on the ENERGY STAR list, not only the ones published on this site. Same type, similar size.
Same type and size, lower energy use
| Model | kWh/yr | Difference |
|---|---|---|
| Big Ass Fans MM1-72 | 114 | 114 kWh |
Yearly cost by state
Same 127.900 kWh/yr at each state’s average residential price (2026-08).
Comparable models
Same type, within 15% of this model’s fan diameter.
Specifications
- Estimated annual energy use
- 127.9 kWh/yrOur estimate: 8 h a day at the average of low and high speed power, standby 16 h, every day
- Fan diameter
- 84 inFan diameter
- Airflow per watt
- 418 CFM/WAirflow per watt as listed by ENERGY STAR
- Type
- Low-Mount HSSD Fan Only
- Placement
- Indoor Ceiling Fan
- Power at high speed
- 39.8 W
- Standby power
- 2.0 W
- Warranty
- 5 years
- Connected
- Yes
- Sensors
- Occupancy sensor
- UPC
- 810013338874
- Markets
- United States
- Available on market
- 2024-11-01
- ENERGY STAR ID
- 3814688
Customer reviews
Be the first to review this appliance.
Write a review
Frequently asked questions
How much electricity does the Big Ass Fans MK-i61-071806 use?
ENERGY STAR lists the power this model draws but no yearly figure, so we estimate about 127.9 kWh per year, assuming 8 hours a day at the average of its low-speed and high-speed power, with standby power for the other 16 hours, every day of the year. Your use will differ with how many hours a day the fan runs, the speed you choose and the months you use it.
How much does it cost to run?
At statewide average residential prices, the listed annual use costs about $16.27 in Nevada and $60.34 in Hawaii (EIA, 2026-08). Your own utility rate may be different; enter it in the calculator.
How does the Big Ass Fans MK-i61-071806 compare with similar models?
Among 14 ENERGY STAR certified low-mount HSSD fan only models with a similar fan diameter, it ranks 2nd lowest in annual energy use. Its 127.9 kWh per year is 5% below the median of 134.65 kWh.
What does CFM per watt mean?
It is the air a fan moves per watt of power at its listed speed, so a higher number means more airflow for the same electricity. This model is listed at 418 CFM/W.
Learn more
Methodology and sources
Model data comes from the ENERGY STAR Certified Ceiling Fans dataset (EPA). Electricity prices are statewide average residential prices from the U.S. EIA, latest period August 2026. Values are stored locally and refreshed by scheduled imports. Missing values are left blank, never estimated.