There are a number of guidelines to control spending through good use of appliances…
Eight Tips to optimize refrigerator and freezer
1- Avoid frequently opening the door or keeping it open too long; take everything you need at once!
2- Do not keep food hot. Do not place or the refrigerator or freezer where out of the sun or near other heat sources. Place them 5 cm. walls and leave free space for air circulation.
3- Do not fill too much or the refrigerator or freezer, the higher efficiency is obtained 3/4 full.
4- Clean at least 1 time per year; a layer of ice covering the freezer increases energy consumption by 30%.
5- Check that the doors are properly sealed; replaces old tires! Tip: Put a paper on the door to close it, if the paper slides have to change tires.
6- Recommended temperatures are: 3-5° C for the refrigerator and about -15° C for the freezer.
7- Unplug them only if you will be absent more than 15 days (not suitable for shorter absences); clean them and then leave them open.
8- The refrigerator is the appliance that consumes the most, estimated that only need a capacity of 50 liters per person (well, a house with 4 people need a 200 liter refrigerator). » Read more