No one may know this - and no one may care to help but here it goes: We recently had central air installed (yeah - I know - in August! We applied for it back in May! Ack!) anyway - they gave us the cheapest dinkiest thermostat ever produced. Is it set to 70F? 75F? 78F? The world may never know! Basically I have decided that the $25-50 fee of a programmable thermostat will be far outweighed by the savings in electricity by being able to tell the A/C when to shut off/come on/accurately set it to a correct temperature. (78F vs 72F is a big difference in your bill!) So here's the problem - our current crappy thermostat has (from what I gather) no electricity to it. There are no parts that require electricity, so I'm guessing that it just opens and closes circuits when the proper temperature is hit. How am I going to get electricity to the programmable thermostat? Can anyone suggest any models that run off batteries? Sorry if this is a shot in the dark.