I've always used programmable thermostats in my homes (even old clunky ones from about 1980)... and love them. The newer digital ones have anticipatory features and are smarter than the previous generation. My current one is a veritable computer and was part of the new system. However, none of them were linked to anything other than the furnace or A/C. I haven't had any interest in the newer, remote-control, themostats (that are part of a service). Frankly, it's not that hard to teach your thermostat what you need it do do on a daily basis. :fat: I'm sticking with that.