Kevin's newest discovery has him asking, "Who needs central heating?" With 13-inch-thick walls filled with low-density foam, point source mini-split heaters and a photovoltaic system that knows how to work the incentives, this "reverse saltbox" home gets taken to Net Zero and beyond, all on a mere $140 per square foot. Then, Amy heads to Disneyland to see how storm-ready building can help you and your home avoid a wild ride in the next hurricane season. Plus, at the Consumer Electronics Show, Kevin finds three cool new gadgets that will stream your movies, track your body weight and vacuum your house, all without wires. And if you're looking for a way to get your lawn off its chemical habit, check out compost tea!