The freewatt® home heating system, manufactured by ECR International Inc. (, is a green technology for home heating. It was displayed at the 2009 AHR Expo, Chicago. According to Bill Dahlin, director of sales and U.S. distribution (pictured here), the system operates using microcombined heat and power (microCHP) technology, which marries an Energy Star®-rated, high-efficiency gas furnace or boiler to a Honda generator. Electricity can be used to power the home or can be sold back to the grid.

Publication date:03/16/2009