I second this. The only thing this company does well is market their crap. You spend millions and get locked in before you realize how much their product blows.

This is one of the biggest suggestions I could make. I recently used products from : retrozone.com They have the only product that I have found that will easily retrofit an old house with zone technology. I spent about 500 dollars on parts and pieces. In the last year I have already made up for what I have spent. My winter bill is the same as last years which is pretty good considering prices have almost doubled in that time. If you goto: http://www.resconsys.com/products/stats/ They have various zone controllers and thermostats. Many of then communicate on an RS-485 netowork that would allow a computer to control temp set back and to query for the current conditions. Good luck