It is true that most of the world's urban areas are becoming larger, with megacities like Delhi, Jakarta, Shanghai, Beijing and Manila adding more than five million people in the last decade and most other urban areas are growing, but not as fast.
1 With professional installation, a central vacuum system can cost $800-$4,000, but averages about $1,200-$2,000 for new home construction (or as part of a remodeling project where the walls are already torn open) and $1,500-$2,500 for retrofitting an existing house.
Price: $1150. Weight: 45.9 lbs. Decibels (C Scale): 80, running load. Likes: The machine that revolutionized the small-generator industry is still out in front, with flawlessly easy pull starting, quiet operation, excellent power quality, and convenient access with a single large captive screw on its service panel.