I'm a heating engineer - the 99p gadget that will save you tonnes on bills... you'll get your money's worth in seconds | The Sun

THE cold's setting in outside, and the heating's going on inside.

And with the energy price cap being increased by 10%, bills are skyrocketing.

So people everywhere are hunting for different hacks, tips and tricks to reduce their heating bills.

And, according to one engineer, a 99p gadget is quite literally the key.

"Over time, air can become trapped in your home’s central heating system, preventing radiators from warming evenly," iHeat heating expert Stephen Day explained.

"This causes cold spots and forces your boiler to work harder, consuming more energy to maintain the desired temperature.

"The result? Higher energy bills.

"A heating system that is running efficiently can save you as much as 20% off of your energy bills.

"This means you could save over £300 just by doing some simple maintenance."

So, get rid of the trapped air by using a radiator valve key, which will set you back around 99p.

“This task often goes overlooked.

"But for less than the price of a cup of coffee, you can make sure you get your money’s worth every time you pop the heating on," he said.

"The good news is that bleeding radiators is easy, even for those without technical expertise, and takes just minutes to do."

Stephen went on to explain just how to utilise the clever gadget, starting by turning off your heating.

You then need to find your bleed valve, which is usually found at the top of the radiator.

Insert the radiator key into the valve and turn it slowly anti-clockwise.

FOLLOW these easy five steps to bleed your radiator and save a potential 20% on your heating bills.

"You’ll hear a hissing sound as trapped air escapes," Stephen said.

Once the water starts to drip out, turn the key clockwise to close the valve.

After bleeding the radiators, you'll need to ensure your boiler is at the correct pressure level.

"You can usually find out what level of pressure it should be at in your boiler's manual," Stephen added.