There is nothing more annoying than looking for ways to remove the dirt and dust from behind the radiator when cleaning your home. Although out of sight, the back of the radiator can build up dust quickly without you realising and is a difficult area to clean, especially if you have big hands or an extremely tight space between radiator and wall.
Try hanging a damp cloth or sheet of damp newspaper behind the radiator and blowing the radiator with a hairdryer. This will force out the hidden dust, forcing it to stick to the cloth or newspaper that you have strategically placed behind the radiator.