How to bleed a radiator – experts share 4 simple, speedy steps to follow

A light blue painted radiator mounted on a grey painted wall beside a lighter grey sofa. A half circle mirror hangs above the sofa. .

Bleeding your radiators might sound like a daunting and slightly morbid task, but it is a simple trick to help boost their efficiency and prevent hot and cold spots throughout your home.

'Bleeding' a radiator is the process of letting any air out of the system to allow water to flow more freely, making your radiators hotter and reducing energy waste.