Hair dryer: how much electricity it uses, cost in Chilean pesos and what wattage to choose

A 2,000 W hair dryer used at full power consumes 0.33 kWh in 10 minutes: about CLP 85 with electricity at CLP 255.27 per kWh, CGE's BT1 residential rate in Chile since October 2026. Used like that every day, it adds up to 10 kWh a month, about CLP 2,550. It is one of the most powerful appliances in the home, although it is used for only a few minutes.

Household hair dryers range from 1,200 to 2,500 W. For reference, Bosch's range includes models of 1,600 W (PHD3300), 1,800 W (PHD2511), 2,180 W (PHD9960) and 2,500 W (PHD7962DIC), according to their spec sheets. Below: what each wattage costs, why heat is what uses most and which one to choose.

A dryer's consumption is easy to calculate: the power in kW multiplied by the hours of use. A 2,000 W (2 kW) dryer used for 10 minutes (1/6 of an hour) uses 2 × 1/6 = 0.33 kWh. The table shows consumption and cost per use at full power with electricity at CLP 255.27 per kWh:

Energía Futura calculations at full power. In practice, hardly anyone uses the dryer at the hottest setting all the time: on medium heat, the element runs at lower power and consumption drops, sometimes by half. The real cost is usually between half and the full figure in the table.

The monthly cost depends on how many people use it and on hair length, which sets the minutes. These are some cases with a 2,000 W dryer at full power:

For a household, the dryer rarely exceeds 5% of the bill: an average Chilean home uses about 200 kWh a month, as we explained in our story on how much electricity a home in Chile uses. In a hair salon, by contrast, dryers and straighteners are among the largest electricity costs.

Almost all of a dryer's power goes into the heating element that warms the air. The motor and fan use a small fraction. That is why the heat button matters more than the speed button: cold air uses very little, and going from maximum to medium heat cuts consumption significantly.

Higher-wattage dryers do not always use more in total. A 2,200 W model with good airflow can dry hair in fewer minutes than a 1,600 W one and end up using a similar number of kWh. Time is what matters most: towel-drying first and using the dryer on damp, not soaking, hair is the simplest saving.

By power, the dryer is among the appliances that place the greatest demand on the electrical installation, together with the kettle, the electric oven, the iron and electric heaters. By monthly consumption, however, it is far behind those that run for many hours, such as the fridge or heating. A 2,200 W kettle, for example, uses little per use because it runs for just a few minutes, as we detailed in our electric kettle guide.

Energía Futura calculations with electricity at CLP 255.27 per kWh; the kettle figure is from our electric kettle guide. Wattages are typical ranges; each model shows its own on the label or base.

In Chile the household supply is 220 V. A 2,200 W dryer draws about 10 amps, the same as a typical 10 A socket circuit can handle. If a dryer and a heater, kettle or iron are plugged into the same circuit at once, the breaker trips. That is the warning that more was demanded than the circuit can take.

• Do not use thin extension leads or power strips with a high-power dryer: they overheat.
• Plug directly into the wall and, in the bathroom, only into sockets with residual-current protection.
• Check the dryer's cable: if it is frayed or the plug gets hot, replace it.
• Do not leave it plugged in near the washbasin or bathtub.

If breakers trip often when using the dryer, it is worth having an SEC-authorised installer check how the home's circuits are distributed, especially in older buildings. Sometimes it is enough to move the dryer to a socket on another circuit, for example the bedroom rather than the bathroom.

• For home use, a 1,800 to 2,200 W dryer with at least two heat settings and a cold-shot button covers almost every case.
• For short hair, 1,200 to 1,600 W is enough and lighter.
• Concentrator nozzle: directs the air and dries faster without more power.
• AC motor in professional models: more durable for heavy use; for home use, a lighter DC motor is enough.
• Towel-dry first and use medium heat: the biggest cut in real consumption.

In the home's total spending, the dryer weighs little next to hot water: a long shower with an electric water heater can use more than a week of hair drying. If you want to lower the bill, kWh prices by municipality, which change the result of any calculation, are in our guide to the price of a kWh in Chile.

In a power cut, the dryer is one of the hardest appliances to back up. A 1,000 Wh portable power station delivering 2,200 W would, in theory, run it for about 27 minutes at full power, and many of those stations cannot handle that load: they shut down when it is plugged in. A petrol generator can, but it needs at least 2,500 to 3,000 W so as not to be at its limit.

If the backup is small, the most practical option is to use the dryer on medium heat or cold air only, which cut power a lot, or wait until power returns. For backup equipment, the priority is usually the fridge, lighting and charging phones.

How much electricity does a hair dryer use?

A 2,000 W one uses 0.33 kWh in 10 minutes at full power: about CLP 85 with electricity at CLP 255.27 per kWh.

How much does a hair dryer cost per month?

With 10 minutes a day, about 10 kWh and CLP 2,553 a month. Less on medium heat.

Does a higher-wattage dryer use more?

Per minute yes, but if it dries faster total consumption can be similar. Time and heat setting matter most.

Why does the breaker trip when I use the dryer?

Because a 2,200 W dryer draws about 10 amps, as much as a typical circuit handles. Used together with another high-power appliance on the same circuit, it exceeds the limit.

Does cold air use electricity?

Very little: only the motor runs. Almost all consumption comes from the element that heats the air.