Posde, for exactly that reason. I am away from home for extended periods and want to keep the temp low in order to save energy. It takes a long time to bring the temp back up to a comfortable level. It would be nice to be able to remote in and raise the temp a couple hours before I get home. Know what I mean? 
I am still hoping for some insights into thermostats. Thanks

I am still hoping for some insights into thermostats. Thanks