Leave around 10 cm between the back of your appliance and the wall to ensure adequate ventilation. Overfilling fridges inhibits air circulation while under filling uses more energy to cool air which escapes quickly when the door opens. To check whether your fridge or freezer seals are working properly, test whether you can trap a piece of paper in the door. If you can’t then the seal probably needs replacing. As a rule of thumb, the older a fridge, the more power it uses and greenhouse gasses it emits.
Refrigerators, freezers and dishwashers account for approximately 30% of your household energy consumption. At the same time, these white goods account for around 53% of household greenhouse gas emissions.> > To find out the comparative energy efficiency and the estimated energy consumption of your appliances, visit the government energy rating website.