I saw something at DesignEX today. It looked so impressive, and the spin was really good. It was sold as something that would improve your energy efficiency by 10% - 15%.
I would cost about $30,000 for a small home up to $100,000 for a larger home...
Very impressive, the presentation was very good...
Only one problem, it cannot work, in fact it would consume more energy... their science was flawed.
The salesman was a little upset at my comment... maybe he can get a real job.
Ed