Sliding patio doors can often be the weak link in an otherwise secure house. Be sure to use security bars for added protection on sliding doors and keep them locked when not in use. 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.
There are three different types of snowthrower drives available: auger, wheel and track. With an auger drive, the auger (the snow gathering component of the machine) propels as the user pushes the snowthrower. With a wheel-propelled drive system, the user depresses the handle and the auger spins. Like a propelled lawn mover, the wheel system helps propel the snowthrower. With a track drive, the wheels of the snowthrower are replaced with rugged track treads, like a tank. It is great for maneuvering through heavy snow, because slippage is virtually eliminated.