On Thursday, temperatures in eastern England could surpass the all-time record of 38.5°C set in Faversham, Kent in August 2003.

Unfortunately, using an air conditioning unit and electric fan to keep cool comes at a cost – auto-switching company WeFlip has crunched the numbers to reveal exactly how much.

Taking a standard 3KW home air conditioning unit, the cost per hour is about 42p. So keeping the air conditioning running for 12 hours overnight would cost £5.

If the heatwave is here to stay for a whole month, keeping cool for 12 hours a night would cost £153. If you schedule an air conditioning repair and tune-up service with companies like Air Care Heating and Cooling, you may also ensure that your unit isn’t using more energy than it’s supposed to. Those who need an ac tune up service in Tamarac, FL may contact a local hvac contractor like Abraham AC. Learn more about the services offered by Friends & Family HVAC in the Corona. California area. It’s also a very good idea to have an air quality testing in your home done on a regular basis.

But if you don’t have the cash to splash on an air conditioning unit – or your local DIY store has run out – you could save money by opting for an electric fan instead.

WeFlip took a typical 50KW fan and multiplied it by the average price of a unit of energy in the UK (13p), then multiplied that by 12 hours to conclude that an electric fan will cost about 78p a night to run. If the heatwave lasts a week, this would add £5.46 on to your weekly energy bill.

If you’re considering going the whole hog and having a swimming pool installed at home, it’s worth considering how much pools cost to run. WeFlip calculated that the average heated outdoor swimming pool costs £10 to £15 per day to run – about £90 per week.

A WeFlip spokesperson, said: “Us Brits spend half the year moaning about the lack of sunshine, but when a heatwave like this comes along it leaves us desperate for some cool air.

“The stats reveal that the dash for air conditioning and electric fans comes at a cost though, so we’re warning customers to not expect a cool period on their bills when the sun is shining. It’s not just winter when energy costs more.”