Domain: tiger-web1.srvr.media3.us Ecobee3 vs Nest in one story house. | Page 2 | Tech Board
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re: Ecobee3 vs Nest in one story house.

Posted on 10/3/16 at 6:27 am to
Posted by TigerWise
Front Seat of an Uber
Member since Sep 2010
35131 posts
Posted on 10/3/16 at 6:27 am to
quote:

beware of users who just don't like products because they don't like them or their MO. IMHO you won't regret either...


And beware of posters who have never used the products
Posted by Muice
Baton Rouge
Member since Aug 2013
1268 posts
Posted on 10/3/16 at 6:49 am to
I bought an ecobee3 this weekend. I had a C wire coiled up but it didn't work for some reason.

One look at that wiring harness you have to add in if the C wire isn't there - and I returned the damn thing and got a Nest just for ease of installation.
Posted by LSUdubai
Dubai, UAE
Member since Oct 2010
268 posts
Posted on 10/3/16 at 7:12 am to
quote:

And beware of posters who have never used the products


This too!
Posted by CAD703X
Liberty Island
Member since Jul 2008
92437 posts
Posted on 10/3/16 at 10:10 am to
quote:

had a C wire coiled up but it didn't work for some reason.


You do realize if it's pigtailed its not connected on the other end either right or you would have a live wire behind your stat?

You just needed to open your HVAC and attach it to power there.

Eta It's literally a 2 second job to connect it then you would never have to worry about your stat going out because of a dead battery because you hooked it up to da juice.
This post was edited on 10/3/16 at 10:20 am
Posted by Muice
Baton Rouge
Member since Aug 2013
1268 posts
Posted on 10/3/16 at 4:45 pm to
I opened up a panel on the AC and there were too many wires involved for the amount of beer I had consumed it was easier to not mess around with anything. Call me lazy but I really only wanted a smart thermostat to be able to adjust the temperature from my phone in bed, so the nest works just fine.

Should have posted on here, it wouldn't be a proper tech board post unless I ask for reviews after purchasing.
Posted by CAD703X
Liberty Island
Member since Jul 2008
92437 posts
Posted on 10/3/16 at 5:05 pm to
quote:

I opened up a panel on the AC and there were too many wires involved for the amount of beer I had consumed it was easier to not mess around with anything.

or you could have asked and we could have given you a guide including pics on what to do about a pigtailed c-wire.

its all good, just bookmark this for the future if you decide to get a wired unit.

LINK
Posted by efrad
Member since Nov 2007
18703 posts
Posted on 10/3/16 at 5:08 pm to
quote:

I opened up a panel on the AC and there were too many wires involved for the amount of beer I had consumed it was easier to not mess around with anything.


Try doing it sober instead?

I had the exact same situation. I took my old Honeywell traditional-style thermostat off the wall, saw the C wire was run. Went into the attic and checked to see if it was connected on that end, but it wasn't. Looked at the diagram and screwed the C wire into the terminal where it belonged. Bought the ecobee3, connected it and it worked. Easy.
Posted by Muice
Baton Rouge
Member since Aug 2013
1268 posts
Posted on 10/3/16 at 5:30 pm to
It's still worth it to connect the C wire right? Going to try that tomorrow night. Thanks for that link.
Posted by mctiger1985
Baton Rouge
Member since Oct 2009
3695 posts
Posted on 10/4/16 at 9:16 am to
quote:

It's still worth it to connect the C wire right? Going to try that tomorrow night. Thanks for that link.


Absolutely. Power stealing is not recommended by some A/C guys.
Posted by Korkstand
Member since Nov 2003
29074 posts
Posted on 11/23/16 at 1:47 pm to
I just got the ecobee3 and thought I would bump this thread with my take on some of these comments.

quote:

One look at that wiring harness you have to add in if the C wire isn't there - and I returned the damn thing and got a Nest just for ease of installation.

It's really pretty simple to install (assuming you haven't had too many beers). The instructions tell you exactly where to put which wires.

quote:

The remote sensors for the Ecobees are not good at all in my experience, thus killing their advantage; to the point where I don't even use the remote sensors anymore.
quote:

ETA: the problem with my remote sensors is the temp readings were way too high compared to what the actual room temp was; by about 4 degrees. This made the AC run much longer than it actually needed to.
How did you check the room temp? Did you verify with a third thermometer? If not, how do you know the ecobee sensors were wrong and not your thermometer? Did you put all the sensors right next to the wall unit, then let them sit for 20 minutes or so to see if they read the same?

Did you by chance place your sensors near a heat source? Or did you keep moving them around without giving them time to lose the heat from your hand? Or place them too high in the room? Placement is key, as one room can have a temp variation of 5 or so degrees from spot to spot.

I have 3 sensors, and I find them to be very accurate and crucial to keeping the system efficient, at least in my house. My intake is right near the thermostat, so when the heater is running the cool air being sucked out of the house is rushing past the thermostat, which makes it read a few degrees cooler than the sensors. It's obvious to me now that my old thermostat was overheating the house by a lot, because once the thermostat got up to temp the bedrooms were very warm. The ecobee averages the temps, so it runs for a lot less time because it knows the thermostat temp will catch up to the temps from the sensors. Also, it runs the fan for 5 minutes per hour, so it has "figured out" that very often it doesn't need to fire the furnace at all. It just circulates the air a little bit and the temps even out.

I just installed it 2 days ago, so I can't comment on how it handles the a/c, but I imagine it will be a similar story.
Posted by Breesus
Unplug
Member since Jan 2010
69549 posts
Posted on 11/24/16 at 7:29 am to


I'm getting my ecobee on Friday. Very excited.
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