This is true... but unless you have a smart hvac unit or smart vents, it's really only using the sensor in that room as the control temperature instead of the thermostat near your return. This can be counter productive if the room your sensor is in varies by several degrees compared to the rest of your house. I went with the Ecobee lite because I didn't feel like the sensor was going to be worth it to me. (I only have a 2450sq ft house tho)
You are really going to be happy with your Ecobee tho. After you have it in place for a month or so, you will gain access to your historical data to see how your house has been performing and you can start tweaking it even more from there.
I will mention that you need to make sure you hook it up correctly. Luckily you can call them if you have any questions. For mine specifically, I didn't hook up 1 wire to a specific port because the label on the Ecobee said it should be for a secondary heat pump or heater which I didn't think my unit had. Because I didn't hook this wire up to that port, my heater wasn't kicking in during the winter when the heat pump outside got below 32 degrees. After talking to Ecobee, it was determined that the auxilary heater on my heat pump was controlled by that wire and without it, whenever the pump detected it was below 32 degrees (safety feature), it won't start and attempts to kick in the aux heater instead until the pump warms up. Long story short my heater wasn't working during the coldest part of the year. It was a frustrating problem because I installed the Thermostat in the summer, so it was several months before the issue reared it's head. Before I called Ecobee, I actually had an HVAC guy show up and take a look first and because he couldn't find anything really wrong, he took 2 hours trying to figure it out and ended up charging me like $240 to replace a relay that he said MAY be causing my problem.
This is really good to know, cause I will be in the same boat.... installing in Summer, and then if it won't kick in when it gets cold I'll be mad.
Though that's what happened when I moved in.... I bought brand new HVAC... my Dad's friend does HVAC, got us the units at company discount, and the two of them installed the furnace/humidifier and the AC unit before I moved in.
The AC worked great.
Fall rolled around and it got cold one night, so I flipped the thermostat over to heat, set it to 72 and went to bed.
Freezing the next morning I woke up and found the house at like 64.
Went to work and came home and called my Dad, who was surprise surprise at the bar with the HVAC buddy.
Told em my fucking heat wouldn't kick on.... went out and realized he never lit the pilot light.... I just followed the instructions and it lit up and worked.
But that whole day at work im thinking... **** if the heat doesn't work.... wtf am I gonna do.
