The current heatwave has had many of us digging out electric fans from our lofts and garages. At the same time, with the price of electricity soaring, worries about prolonged use of fans is making some question whether running them at all is a sensible idea.
The good news is that electric fans are surprisingly energy-efficient, especially when compared to an electric air-conditioning unit. The bad news is that, as more energy price rises take effect, it will become more expensive to use fans if the heatwave returns next summer.
The length of time you run a fan is not the only factor. Some fans cost more to run that others – and it even helps if you keep them clean.
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More than half the UK population use fans to keep cool – so what are the costs involved? And are there cheaper ways to keep cool?
How does a fan keep us cool?
Fast-moving air increases the rate at which our bodies lose heat due to convection and evaporation. The faster moving air from the fan displaces the warmer air that is in direct contact with our skin.
What is the most expensive type of fan to run?
Bladed fans use the most energy – the larger the blades, the more energy it needs to turn them. Bladeless fans, on the other hand, are very energy-efficient.
What is the typical cost of running a fan at the moment?
- An 18-inch bladed floor fan costs around 3p an hour to run. Over 10 hours, it would cost 30p.
- A bladeless fan might cost just under 2p an hour. Over 10 hours, it would cost 16.2p.
- A small tower fan could run at 1p an hour. Over 10 hours, it would cost just 10p.
- Keeping fans clean can make them run more efficiently and use less electricity
Alternative ways to keep cool
Here are some ways you can avoid using a fan :
Frozen bedding
When bedroom temperatures soar drastically, action is often needed. Pop your sheets and pillows into bags and put them in a freezer ready for bedtime.
Choose cotton – and pyjamas!
Save satin, silk or polyester sheets for a cooler day. Cotton bed linens are lightweight and breathable, promoting airflow in your bedroom.
Make your own breeze
Humans sleep best in a cool bedroom, with the ideal temperature being 17C, so open a window and close curtains during the day.
Lose a layer
Use sheets and blankets, rather than duvets; these can help to regulate the body temperature quickly and easily.
Reach for the H2O
Have a glass of water by the bed to drink if and when needed. Drinking a full glass of water before bed can lead to multiple toilet visits throughout the night.
Take a cool shower
Take a cool shower before bed for a quick and easy way to cool down. Avoid freezing showers as these can be too stimulating and keep you awake.
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