that would be interesting. I was stuck with nest because I only have two wires. it has worked fine though the early on was 1 hour too soon and would not change. but that tends to sue more power so it was not a big deal and skylark turns it on and off as we leave.And the Ecobee has an Watch appAND, it doesn't send your data to GOOGLE
Oh, and ecobee provides an easy way to create a power wire to power the thermostat if your current wiring doesn't include a power wire (aka C common wire). I used the adapter and now I no longer need to worry about changing the battery like I did on my old thermostat.
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get the smart vents they adjust airflow http://www.amazon.com/gp/product/B00YCAWCV4?keywords=keen home&qid=1452226963&ref_=sr_1_1&sr=8-1It would be interesting to see what impact the remote sensors have on the gas bill. For example, my house is around 2700 square ft and our bedroom is upstairs and in a corner, quite a ways from the thermostat. In order to get the room up to 70º the rest of the house usually gets up to 78º or so. Seems pretty inefficient but not sure what else you can do without zoning.
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