If you need a fan flow rate, just use our fan flow calculator

How much electricity bill Will You Get For Using Your Fan?

How much electricity does a fan use

The power consumption of each type of fan is different because most of them have different power ratings. Therefore, in order to know how much electricity an electric fan will use, you need to know the correct rating for that particular fan model, otherwise no one can calculate it correctly.

This table is given as an example.

Model Power, W
Lasko 2511 36” Oscillating 3-Speed Tower Remote Control Household Fans, 36 Inch, Black 10
120mm Cooling Fan High speed ball bearing electric Fan 120*120*38 mm KH-F12038 DGOzone 21
10 inch kinds ice cooling stand fan metal blade material pedestal fan 12 inch 2 in 1 30
Lasko S16612 Oscillating 16″ Adjustable Pedestal Stand Fan 40
Floor Stand Pedestal Fan 16 Inch Oscillating Electric 3 Speed Cooling White 40
16″Mist Stand Fan Air cooling mist fan with water spray 90


Ceiling Fans

Ceiling fans (1200 mm) are typically rated at 10-80 watts = 0.01-0.08 kW. Thus, they will consume 0.01-0.08 kWh or 0.01-0.08 units per hour.

How Much Electricity does a fan with built in lights use?

A chandelier with a fan consumes less energy than conventional bulbs. It also saves space. Such a product will successfully fit into even the smallest room and will look great there.

Cost to run a fan

The power consumption of the fan depends on 2 components: the power of the appliance, the operating time.

Fan electricity cost calculator

Input Power of the appliance, kW

Enter the approximate running time in hours

Enter electricity tariff

Cost of the consumed electric power

A simple formula can be used to determine how much the electricity consumed by an electric appliance for a certain amount of time will cost.

S = P * h * t

S – cost of the consumed electric power

P – power of the appliance, kW

h – time of work of the device in hours

t – electricity tariff



How to reduce the cost of running your fan

In order to choose a more economical fan and reduce the energy costs of ventilation, LESSAR professionals recommend looking at the SFP factor.

What is SFP?

Special Fan Power (SFP) is a parameter that quantifies the energy efficiency of the ventilation system. It is the ratio of the electrical energy expended to the volume of air pumped through the fan in 1 second. The SFP can be applied to either a single fan or a group of fans, allowing you to determine the energy efficiency of the ventilation system in a building. The SFP is calculated using the following formula:

SFP = ΣP / Σqv


SFP [kW / (m³/s)] is the energy efficiency factor;

ΣP [kW] is the sum of electric energy spent by the fans

Σqv [m³/s] – total volume of air pumped by the fans.

The minimum possible SFP coefficient for low-power fans or in ineffective working points is 0.6 kW / (m³/s).

High CFM fans

High CFM fans are becoming important to more users these days. Although they may be a little noisier, they can move a tremendous amount of air. A lot of people really cherish it. These fans are great for cooling your valuable equipment. Because of the higher RPMs, they tend to make more noise than most standard fans. Most of these fans are of the dynamic type because static fans do not create excessive airflow like others.


High CFM outdoor ceiling fan

The number of fan blades does not affect the CFM of a ceiling fan; the number of blades is more of an aesthetic feature than a utilitarian one. When choosing the best outdoor fans, consider choosing a higher CFM option that fits your preferred style and budget.


High CFM box fan

The power consumption of a CFM box fan can vary depending on its size. For a 20″ CFM box fan, it can range from 1000 to XNUMX cubic feet per minute. CFM 2500. A standard tower fan uses about 100 watts of electricity which will cost 2.9 cents per hour, assuming the electrical usage rate is 28.7 cents/kWh. This means a tower fan usually consumes more electricity than a pedestal fan.

How Many Amps Does a Ceiling Fan Use? With Calculator

A standard ceiling fan without BEE start mode is rated at 75 watts. If we use a 75 watt fan for 12 hours, it will consume 900 watts / hour (75 X 12) of electricity.

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