Voltex is a hybrid electric water heater that integrates heat pump technology to make it more than twice as efficient as a standard tank. The unit operates like an air conditioner in reverse, pulling heat from the surrounding air and transferring it to the tank. It costs about $200 per year to operate, the company says. A.O. Smith, 414.359.4000;
www.aosmith.com.
Energy Smart is an LED replacement bulb that looks like an incandescent.
The Debris series is largely made from baghouse dust, granite dust, and spent abrasives.
EasyGreen creates vegetated walls inside and outside.
Invisi Series II's flushing mechanism and tank are hidden behind the walls.
BamDeck is a dense and strong outdoor bamboo deck board.