If your older water heater feels warm to the touch, buy a water heater blanket and save up to 9% on your water-heating costs. Check the caution label on your water heater. Newer models come with proper insulation and some even prohibit installing a blanket. Finally, don’t cover the inspection plate with the blanket, it could be a fire hazard.
Out with the old, in with the new
Your refrigerator uses the most energy of any appliance in your home if you consider that it runs 24 hours, seven days a week. According to ACEEE, there are 126 million refrigerators and 38 million freezers using 200 billion kWh a year.
Unless you cook a lot, more efficient cooking appliances won’t save you more energy. With stoves and ovens, efficiency often comes down to practicing efficient cooking habits. However, these appliances have long lives so it's worth considering efficiency when shopping for a new one.