Bill,

I've been looking at these as well. I'd be interested in using an X-10 thermostat. The only reservation I had was that I wanted to control the thermostat with my ProntoPro. I know that there is no 2 way capability, but I'm sure there are work arounds for that. What I am interested in knowing, is: Do IR codes exist so that the thermostat can be controlled via Pronto?

Let me know.

Thanks