Tower fans are also famous because they provide cooling comfort consuming significantly less energy when compared to air conditioners. This tutorial gives a detailed explanation of the number of watts a tower fan consumes, number of amps it draws, the number of kilowatt-hours of electricity it uses and the cost of running a tower fan. We contrast various models of tower fans (standard, bladeless, oscillating) and sizes (small, medium, large) of tower fans in the American households. The costs are all computed based on the average electricity rate in the U.S. which is approximately 0.15 dollars per kWh.
It is structured in such a way that it can be easily referred to, and there are summary tables and examples of scenarios that can be applied in bedrooms, living rooms cooling, and 24/7 operation.
| Fan Type | Typical Wattage Range | Typical Amp Draw (120 V) | Approx. Cost per Hour |
|---|---|---|---|
| Standard Tower Fan | 30–100 W | 0.25–0.83 A | $0.005–$0.015 (≈0.5–1.5¢) |
| Bladeless Tower Fan | 20–60 W | 0.17–0.50 A | $0.003–$0.009 (≈0.3–0.9¢) |
| Oscillating Tower Fan | 30–70 W | 0.25–0.58 A | $0.005–$0.011 (≈0.5–1.1¢) |
Tower Fan Wattage by Type and Size
What watts does a tower fan consume? The tower fans normally use between 20 watts of power (small unit) to 100 watts of power (large, high-speed unit) . Conversely, a small air conditioner will consume more than 1,000 watts, thus fans are much more energy efficient cooling method. The precise wattage of a tower fan varies with the design and size of the fan, type of motor, speed control and features. We have the breakdown of the watt usage of standard, bladeless, and oscillating tower fans by size below.
Standard Tower Fans (With Blades)
The traditional internal blade (impeller) design is used in the so-called standard tower fans and is enclosed in a tall housing. They tend to vibrate in order to spread air. Such fans are usually 3-5 speed, and this affects power consumption. The wattage of a typical tower fan rises as the physical size and motor power rise. The smaller models can consume as little as 30 50 W at the maximum speed, but larger tower fans can draw up to 100 W at full speed. The power consumption may be reduced to ~2030 W at low settings. The following table indicates the normal wattage ranges per size of standard tower fans:
| Standard Fan Size | Typical Power (Watts) |
|---|---|
| Small (e.g. ~30″ tall) | ≈ 30–50 W |
| Medium (e.g. ~40″ tall) | ≈ 50–70 W |
| Large (e.g. ~48″+ tall) | ≈ 70–100 W |
As it can be seen, the biggest standard tower fans do not usually consume more than approximately 100 watts. Most of the popular mid-size models consume power at a peak of 50 60 W . Faster speeds also consume less wattage (usually down to 30 50 W on Low settings ). This low power consumption implies that standard tower fans are able to offer prolonged cooling at a very low energy expense compared to an AC unit.
Bladeless Tower Fans
Bladeless tower fans (e.g. Dyson Air Multiplier models) have concealed internal impellers and airflow amplification technology rather than exposed blades. They are usually sold as less noisy and energy-saving. Practically, bladeless tower fans are more likely to consume the same or slightly less power than normal fans of the same size. As an example, Dyson AM07 tower fan has a power consumption of approximately 56 W on maximum speed (consuming ~0.47 A at 120 V) . The smaller bladeless fans (desktop or mini tower models) can consume about 2030 W, whereas the larger ones usually consume 5060 W when operating at full speed. The following table shows the normal wattage of bladeless fans according to size:
| Bladeless Fan Size | Typical Power (Watts) |
|---|---|
| Small (desktop/mini) | ≈ 20–30 W |
| Medium (standard tower) | ≈ 30–50 W |
| Large (high-output) | ≈ 50–60 W |
With the help of effective brushless motors and aerodynamics, bladeless fans provide similar airflow at low wattage. A bladeless tower fan may consume ~40 W on medium settings in many cases, comparable to or slightly less than a conventional fan. Bladeless fans are usually preferred by consumers due to their low noise levels and safety (no external blades) and it is an added advantage that they consume relatively less energy.
Oscillating Tower Fans
The majority of tower fans available in the market are oscillating tower fans, i.e. they move side-to-side to reach a larger area. The oscillation capability itself is driven by a small motor (typically only 12 W or 2 W of power consumption). Thus, the wattage of an oscillating tower fan tends to be only slightly higher than that of a non-oscillating fan of the same size. The size and the speed of the fan remain the main factors. The following are the normal wattage ranges of oscillating tower fans according to size:
| Oscillating Fan Size | Typical Power (Watts) |
|---|---|
| Small (personal/29″– Thirty-something inch) | ≈ 30–45 W |
| Medium (room-sized ~40″) | ≈ 45–70 W |
| Large (high-power tower) | ≈ 70–90 W |
Since oscillation does not significantly raise the power consumption, these ranges are quite close to the standard fan values. As an example, a big oscillating tower fan could consume ~80 W on high, compared to ~75 W of the same fan without oscillation, which is insignificant. In short, the oscillating feature of a tower fan does not make much difference in the watt consumption; it is the size and the motor power that prevails.
Tower Fan Amp Usage (Current Draw)
What is the amp usage of a tower fan? As power (watts) is the product of voltage and current, we can determine the current draw of a fan with the standard U.S. voltage of ~120 V. Generally, tower fans consume very low amperage, which is about less than 1 amp. As an example, a 60 W tower fan powered by 120 V consumes only 0.5 A (60 W / 120 V = 0.5 A). A 100 W fan consumes approximately 0.83 A even though it is a powerful fan. In comparison, a normal wall outlet circuit in a house can support 1520 A, and therefore the electrical load of a tower fan is insignificant. The approximate amp draws of various types and sizes of fans are as shown below:
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Standard Tower Fans – Amps by Size
| Standard Fan Size | Approx. Current (A @ 120 V) |
|---|---|
| Small (~30 W) | ~0.25 A |
| Medium (~50 W) | ~0.42 A |
| Large (~100 W) | ~0.83 A |
Most typical tower fans will draw about 0.3-0.5A when used normally. Even the biggest models are much less than 1 A of draw, and that is why you can have a fan and other appliances on the same circuit without a problem.
Bladeless Tower Fans – Amps by Size
| Bladeless Fan Size | Approx. Current (A @ 120 V) |
|---|---|
| Small (~25 W) | ~0.21 A |
| Medium (~40 W) | ~0.33 A |
| Large (~60 W) | ~0.50 A |
To take an example, the high-power Dyson AM07 bladeless device consumes approximately 0.47 A at full power (56 W) . This remains less than a half an amp. Bladeless designs typically require similar current to conventional fans; a medium sized unit of about 40 W will require about one-third of an amp.
Oscillating Tower Fans – Amps by Size
| Oscillating Fan Size | Approx. Current (A @ 120 V) |
|---|---|
| Small (~40 W) | ~0.33 A |
| Medium (~60 W) | ~0.50 A |
| Large (~90 W) | ~0.75 A |
Once more, oscillation does not make a big difference in the amperage. A big oscillating tower fan that consumes ~90 W may consume ~0.75 A, but with oscillation disabled it may consume ~0.72 A, which is practically the same in terms of household electrical load. Tower fans in general draw very little amps, so they are easy to run along with other appliances without overloading a circuit.
Tower Fan Electricity Consumption (kWh)
The consumption of electrical energy is in kilowatt-hours (kWh). This shows the number of kilowatts consumed with time. In order to determine the amount of electricity that a fan uses, you multiply the number of watts the fan uses by the number of hours it is used and then divide by 1,000. As an example, a 50 W fan, which operates 1 hour, consumes 0.05 kWh . The use of 0.4 kWh is consumed when running that same fan 8 hours. The tables below indicate the amount of energy used by different tower fans in an hour, a day (24 hours) and a month (30 days) of continuous use. These numbers presuppose that the fan operates at its normal high speed during the specified time.
Standard Tower Fans – Energy Use
| Standard Fan Size | Energy per Hour (kWh) | Energy per 24 hrs (kWh) | Energy per 30 days (kWh) |
|---|---|---|---|
| Small (~30 W) | 0.03 kWh | 0.72 kWh | 21.6 kWh |
| Medium (~50 W) | 0.05 kWh | 1.20 kWh | 36.0 kWh |
| Large (~100 W) | 0.10 kWh | 2.40 kWh | 72.0 kWh |
A typical tower fan consumes 112.4 kWh (medium to large) even when it is operated continuously throughout the day. A big 100 W fan would use approximately 72 kWh in more than a month of constant use. In practice, fans are frequently operated on a shorter basis (a few hours a day or just at night) and hence the average consumption per month will be significantly lower.
Bladeless Tower Fans – Energy Use
| Bladeless Fan Size | Energy per Hour (kWh) | Energy per 24 hrs (kWh) | Energy per 30 days (kWh) |
|---|---|---|---|
| Small (~25 W) | 0.025 kWh | 0.60 kWh | 18.0 kWh |
| Medium (~40 W) | 0.040 kWh | 0.96 kWh | 28.8 kWh |
| Large (~60 W) | 0.060 kWh | 1.44 kWh | 43.2 kWh |
Bladeless fans are a bit more energy efficient because of their lower wattages in general. A medium bladeless tower fan (~40 W) consumes approximately 0.96 kWh per day when operated continuously compared to 1.2 kWh in the same duration by a medium standard fan (~50 W). In a month, the disparity might be about 7 kWh (21.6 kWh vs 28.8 kWh in the tables above) and this shows a slight efficiency advantage of bladeless models.
Oscillating Tower Fans – Energy Use
| Oscillating Fan Size | Energy per Hour (kWh) | Energy per 24 hrs (kWh) | Energy per 30 days (kWh) |
|---|---|---|---|
| Small (~40 W) | 0.040 kWh | 0.96 kWh | 28.8 kWh |
| Medium (~60 W) | 0.060 kWh | 1.44 kWh | 43.2 kWh |
| Large (~90 W) | 0.090 kWh | 2.16 kWh | 64.8 kWh |
In the case of oscillating fans, the energy used is in line with the wattage of the fan as discussed. A big oscillating tower fan with ~90 W will use approximately 2.16 kWh/day when it is running 24/7. These fans would normally be oscillating when they are in use but as it has been observed, the oscillation does not have a significant impact on energy consumption. It is obvious that even intensive operation of a tower fan still leads to tens of kWh per month, but not hundreds, so they are very economical in terms of electricity consumption.
Running Cost of Tower Fans (at $0.15/kWh)
The cost of electricity is obtained by multiplying the energy consumed (kWh) and the rate of electricity ($/kWh). It is very cheap to operate a tower fan using an average U.S. residential rate of approximately $0.15 per kWh. As an example, a 50 W fan consumes 0.05 kWh per hour, or about 0.0075 dollars (less than a penny). That is 0.4 kWh, or about 0.06 dollars even in more than 8 hours. We give below the approximate running costs of various types and sizes of fans at a rate of 0.15/kWh:
Standard Tower Fans – Running Cost
| Standard Fan Size | Cost per Hour | Cost per 24 hrs | Cost per 30 days |
|---|---|---|---|
| Small (~30 W) | $0.005/hr | $0.11/day | $3.24/month |
| Medium (~50 W) | $0.008/hr | $0.18/day | $5.40/month |
| Large (~100 W) | $0.015/hr | $0.36/day | $10.80/month |
A large 100W tower fan that operates 24 hours a day will cost approximately 0.36 dollars a day or ~10-11 dollars a month. The prices are only a few dollars per month in case of occasional use. An example is a medium 50 W fan, which would cost approximately 5.40 dollars in the case it was used 24 hours a day throughout the month, but in normal operation (say 8 hours a night), it would be more like 1-2 dollars a month.
Bladeless Tower Fans – Running Cost
| Bladeless Fan Size | Cost per Hour | Cost per 24 hrs | Cost per 30 days |
|---|---|---|---|
| Small (~25 W) | $0.004/hr | $0.09/day | $2.70/month |
| Medium (~40 W) | $0.006/hr | $0.14/day | $4.32/month |
| Large (~60 W) | $0.009/hr | $0.22/day | $6.48/month |
As anticipated, the bladeless fans are a little cheaper to operate since they have lower wattage. An average bladeless unit (~40 W) could cost approximately 4.30 dollars of electricity when operated continuously during a month. The cost is nearly insignificant in sporadic use, that is, a few cents a day.
Oscillating Tower Fans – Running Cost
| Oscillating Fan Size | Cost per Hour | Cost per 24 hrs | Cost per 30 days |
|---|---|---|---|
| Small (~40 W) | $0.006/hr | $0.14/day | $4.32/month |
| Medium (~60 W) | $0.009/hr | $0.22/day | $6.48/month |
| Large (~90 W) | $0.014/hr | $0.32/day | $9.72/month |
Once again, the oscillating type resembles the normal fans. A big oscillating tower fan (~90 W) will cost approximately 0.32 dollars per day when it is left on all the time, or 9.72 dollars in 30 days. It is obvious that even 24-hour operation of a fan does not cost a fortune, these figures are rather cheap at the national average price.
Tower Fan Energy Usage in Common Scenarios
To put the above figures into perspective, the following are some of the typical uses and their estimated electricity consumption and cost. The following examples presuppose a standard fan in the situation (with the corresponding wattage) and apply the rate of 0.15/kWh:
| Scenario | Fan (Power) | Usage | Daily Energy | Monthly Cost |
|---|---|---|---|---|
| Bedroom – Nightly use | Small Tower (30 W) | 8 hrs each night | 0.24 kWh/day | ~$1.08 per month |
| Living Room – Afternoons | Medium Tower (60 W) | 6 hrs each day | 0.36 kWh/day | ~$1.62 per month |
| Continuous 24/7 | Average Tower (50 W) | 24 hrs every day | 1.20 kWh/day | ~$5.40 per month |
In an overnight scenario (in a bedroom), a small 30 W tower fan running ~8 hours a night consumes less than 0.24 kWh of electricity per night, or approximately 1 dollar of electricity cost per month, which is very cheap to provide nightly comfort. In a cooling case of a living room afternoon, a medium 60 W fan that operates 6 hours a day will consume approximately 0.36 kWh per day or approximately 1.50/month. A 50 W fan would use approximately 36 kWh in a month at a cost of about 5.40 even in a 24/7 continuous operation. A fan with a higher power (100 W) that is operated continuously would increase that to approximately 72 kWh and ~$10.80 per month. These are small expenses as compared to what an air conditioner would spend in the same usage periods.
Major lesson: Tower fans are very economical to operate. They are of low wattage whether used in small amounts or continuously, they cost only a few cents or a few dollars on your electricity bill. This qualifies them as a great option of cost-effective cooling, more so when compared to HVAC systems. Knowing the wattage, amps and energy consumption of your tower fan will allow you to plan your cooling requirements with confidence, as even regular use will have a negligible effect on your energy budget.
How to Get the Best HVAC Prices
- Firstly, keep in mind that installation quality is always the most important thing for residential HVAC project. So never sacrifice contractor quality for a lower price.
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Lastly, once you chose the right contractor, remember to use the tactics from this guide: Homeowners Tactics When Negotiating with HVAC Dealer to get the final best price.
