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Keep your fridge at 7°C and your freezer at -18°C. Every degree lower increases energy consumption by about 6%. Also, ensure there is enough space behind the unit for air to circulate.

Unlike other appliances, these run 24/7. An old, poorly sealed fridge is a constant drain on your wallet. Keep your fridge at 7°C and your freezer at -18°C

While a second-hand fridge might be cheap to buy, its high energy consumption could make it the most expensive choice in the long run. The Bottom Line Unlike other appliances, these run 24/7

Always use a lid on your pots to keep heat in, and match the pot size to the burner size. Use a kettle to boil water instead of the stove—it's much faster and cheaper. The Bottom Line Always use a lid on

Most people assume leaving a light on is the biggest culprit, but the real costs usually come from appliances that generate heat or cooling.