Move your refrigerator out from the wall and vacuum its condenser coils once a year unless you have a no-clean condenser model. Your refrigerator will run for shorter periods with clean coils.
There are two primary types of security bars: one for standard doors and one for sliding patio doors. Look for a security bar with a patented locking device that can withstand up to 1,000 pounds of force. Patio door security bars should also prevent thieves from lifting the door off the track.