We probably shouldn’t place items on the top of the fridge, but we do. So things are always falling down the back of the fridge. If only there wasn’t that nuisance little gap, too small to fit your hand behind …

A refrigerator is an electrical device and, like all such devices, its surface heats up and should not be covered. This applies to the rear of the fridge, as well as the sides and top. The gap allows air to circulate and cool the exterior surfaces. In basic terms, a refrigerator works by heating and cooling gases, which draw out heat and release it as vapour. Leaving a small space around the fridge will aid this process. The rear of a fridge contains sensitive components that should not be placed under pressure. If the unit has a large grid-like device (gas coils and compressor) on the back, or an enclosed section that juts out slightly, leave at least a 5cm gap between that and the wall.

At any rate, the electrical lead will probably be attached at the rear of the unit and will require a gap between it and the wall socket. A tight fit all round may look neat and tidy, especially in a wall recess, but you do want to leave some space at the rear and sides of your fridge so you can move it in and out with ease and avoid scratches. Essential information, such as the fridge’s model and year of manufacture, are likely to be located on the rear panel and will need to be accessed for any repair work.

With a new refrigerator, always check the owner’s manual and installation instructions. Whether the fridge is new or old, it’s a good idea to leave a small gap at the rear – at least large enough for you to reach that shopping bag that fell down the back.