How Much Energy Does A Floor Fan Use – But how much electricity does a ceiling heater use? How do ceiling fans compare to floor fans, tower fans, box fans, and other fans in your home?
To find out, I’ve measured the power consumption of these and put them all together in a handy guide.
How Much Energy Does A Floor Fan Use
My test equipment to accurately measure the amount of electricity used by a ceiling heater. I wanted to take ALL the guesswork out of it to get the best data possible – so I turned on a 52″ ceiling fan and hooked it up.
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Knowing that there was no substitute for a hands-on test to determine how much electricity a ceiling fan was using, I wired the ceiling fan to run with an energy meter.
So I decided to tackle it once and for all. To do this, I plugged in a 52-inch 3-speed ceiling fan.
I then plugged it into a high-quality extension cord and used my trusty Kill-A-Watt power meter to measure the power consumption in watts.
I measured the ceiling heater’s power consumption in watts. To be honest, I was expecting a lot of power, but I was wrong! In fact, a ceiling fan set at high speed uses less electricity than other small fans. (Note: when measuring light power consumption, power consumption in watts was for three 15W bulbs)
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The question is how much electricity a ceiling heater uses. i have been
As you can see, even at the highest speed (3 or “high” when the fan speed selector chain is pulled), I was surprised to find that a standard 52″ high ceiling fan was drawing less than 50 watts.
Even more surprising is the low power consumption at the lowest speed setting: only 12 watts! That’s less than most air purifiers and small desk fans I’ve tested.
The basic formula for calculating ceiling heater power is in amperes (amps, also written as “A”). To figure out how many amps a fan draws, we can get a pretty easy number if we know the wattage (watts) and the voltage it uses. Since fans are “induction” motors, things get a little more complicated because we need to use a power plant.
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It’s easy to determine how many amps a ceiling fan uses. The most important thing is to know how much power the heater uses in watts, as well as the voltage used. In most homes, this is about 120 volts (V).
However, since conventional ceiling fans use an electric motor that operates using alternating current (AC) and magnetic fields, things are a bit more complicated.
Note: some electrical testers can measure current easily, you can connect them in series with the fan. Others include the amp used on the data sheet or on the fan label you have.
If not, we can easily calculate it ourselves and get a relatively accurate number in seconds!
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Some modern fans use an efficient design that converts the home’s alternating current to direct current using electronics built into the fan.
However, most of those sold today use standard induction motors. Therefore, they use the magnetic fields created by the alternating current in your home to rotate the fan motor.
In this case, we use the main number to increase and adjust the extra amps that the fan draws. This is called a number
Power factor for many typical appliances, including ceiling fans. The power factor is a number that indicates how much current is wasted in the magnetic fields instead of the power used to drive the motor. For example, 1 = 100% efficiency, and a power factor of 0.5 means an additional 50% amperage.
How Much It Costs To Run A Fan Per Hour [all Types]
As you can see, even at peak speed, a typical ceiling fan draws less than 1 amp of current. It’s a lot less than you might expect! (Note: This diagram shows the fan being used with light bulbs)
In fact, it’s a small fraction of the current used by electrical appliances like heaters (which often use 10-20 amps or more).
These are rough numbers, but even conventional ceiling fans should be pretty close. Although the ceiling voltage is slightly lower than 120V AC, the results will be the same.
Thus, ceiling fans use a fraction of the electricity used by air conditioners (AC units). I used the strengths of both to create an honest and accurate chart comparing the two.
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Why This is because electric fans need power to turn the motor that rotates the blades, which is what air conditioners need
To compare them, I measured the power consumption of both the wattages. Regarding air conditioner energy consumption, I measured the energy consumption of a standard window air conditioner for small rooms that you can buy for your home.
As you can see, the ceiling fan uses 12% of the air conditioner’s energy when set to high.
If the AC unit uses 1.2W of power when it is turned off, it is because of the power required to store memory settings such as the last temperature and other functions or controls.
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For air conditioners that use electronic control instead of mechanical control, there are usually some circuits that require backup power even though they don’t cool the room like clockwork.
Left: A home AC unit compressor that circulates the refrigerant using an electric motor. Right: An automotive AC compressor that drives the engine and uses a magnetic clutch to rotate internal pistons when cooling is needed.
Air conditioner compressors are a critical part of an AC system because cooling is made possible by the thermodynamic properties (adding or releasing heat) of the refrigerant gas under pressure.
In order for an air conditioner to cool the air, it must pass refrigerant (commonly called “Fron”) through a pump to reduce pressure.
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Air conditioners in your home (both window and central air conditioners) contain a series of hoses to circulate the refrigerant. The compressor cools the air in the room under pressure, and the heater releases the heat when it heats it. Heat from the indoor air is forced during operation.
Both in the home and in the car, this requires a lot of energy because the compressor needs a lot of power to turn the pistons in it.
Because it is under pressure (and due to the friction of its moving parts) it requires more physical effort and more electrical energy. When you compare a ceiling heater and an AC unit and understand the difference in what they do, it becomes clear why there is such a huge difference in energy consumption.
Ceiling fans and other types of fans are different from AC systems. Instead of absorbing heat from the indoor air, they radiate heat directly to your body and surfaces. This results in a cooling effect.
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Ceiling fans are much more efficient because they do not require the high power that AC units do. They continue to work
I measured the current consumption of a standard 3-speed radiant floor heater. In addition, I measured the power consumption with and without the sleep function.
A graph showing how much electricity a ceiling heater uses compared to a ceiling heater. Apart from the lowest speed, they are very close in terms of energy consumption.
Both have advantages and disadvantages. For example, a floor fan is good for a very strong airflow in a small range. However, for roughly the same energy consumption, a ceiling heater is better for cooling a room.
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An interesting case study is comparing the Honeywell QuietSet 5-speed tower fan to a ceiling fan. Note that not all tower fans use the same speed as other models and models.
In this case, I measured the power consumption of a 5-speed tower fan. Since it is designed as a quiet room fan, the fan speed is not as fast as others.
Since the 3-speed vs. 5-speed comparison is not accurate, I combined the low and medium speeds for clarity.
Note: Measurements are taken with the tower fan oscillator turned off. With it he measured 19W, 20.8W, 26W, 26.3W and 27.7W. That means it adds 1-2 watts to the motor’s vibration power
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Some models, like the Honeywell shown above, are designed for very quiet operation. Since the fan runs quietly, this affects energy consumption.
Boxing fans are my favorite because of how much white noise they can make. This is one of their advantages over ceiling fans.
As with the other products in this post, I measured the power used by a typical fan. What I found was interesting – I can use twice as much energy as a ceiling heater at high altitude.
As you can see above, a
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