
Description
Maintain an optimal temperature for your home while saving energy thanks to the advanced technology of the ecobee3 lite smart thermostat. By detecting which rooms of your house are most used, by verifying the outdoor temperature, by taking into account your schedule, and by sensing your presence during a scheduled "away" period, this device allows you to make 23% of average annual savings on heating and cooling costs when held at 72°F/22°C. Furthermore, its modern look, easy-to-use touchscreen display, and Wi-Fi connectivity will help to make your home smarter and more comfortable. Using your Android or iOS smart devices, you can also control your thermostat from anywhere. This product is backed by a 3-year limited warranty.
- Save up to 23% annually on heating and cooling costs (compared to a hold of 72°F/22°C)
- Control from anywhere using your Android or iOS device
- Add SmartSensor to manage hot or cold spots and deliver enhanced comfort to the rooms that matter most
- Automatically pauses your heating or cooling when a door or window is left open (requires ecobee SmartSensor for doors and windows and a ecobee Smart Security subscription)
- Integrates seamlessly with your preferred smart home system
- ecobee was named an ENERGY STAR® Partner of the Year award winner


Ecological Attributes
This smart thermostat is ENERGY STAR® certified to deliver energy savings. A programmable thermostat is less sensitive to temperature differences for improved comfort and up to 10% in energy savings. It also provides better energy control of energy consumption.
Product specifications
App Compatibility
Yes
Auto System Change From Heat To Cool
Yes
Auto-away Mode
Yes
Backlit Display
Yes (motion activated)
Base Warranty Labor(Months)
0
Base Warranty Parts(Months)
36
Batteries Included
N/A
Battery Size
N/A
Battery Type
N/A
Bluetooth Compatibility
No
Built-in Z-wave
No
Compatible With 24v Cooling
Yes
Compatible With 24v Heating
Yes
Compatible With Aux/emergency Heat Pump
Yes
Compatible With Electric Fuel Types
Yes
Compatible With Gas Fuel Types
Yes
Compatible With Humidifier/dehumidifier
No
Compatible With Oil Fuel Types
Yes
Control Type
Touch screen
Daylight Savings Time Ready
Yes
Display Type
LCD
Displays Weather Forecast
Yes
Early-start Comfort Function
Yes
Energy History Indicator
Yes
Energy Star Certified
Yes
File/Certification Number
1
Filter Monitor
Yes
High/low Desired Temperature Limits
Yes
Hold Temperature Button
Yes
Hub Required
No
Manufacturer Color/finish
Black
Model Description
ecobee 3 lite Smart Thermostat Base
Mounting Hardware Included
Yes
Outdoor Weather Sensor
Yes
Package Contents
1 x Thermostat, 1 x Power Extender Kit, 1 x Backplate, 1 x Trim Plate, 1 x Mounting Hardware, Install Guide, Wire Labels
Package Quantity
1
Program Periods Per Day
7
Proximity Sensor
Yes
Remote Control Included
N/A
Room Sensor Included
Yes
Safety Listing
Not safety listed
Series Name
ecobee3
Supports Multi-stage Cooling
Yes
Supports Multi-stage Heating
Yes
Supports Single-stage Cooling
Yes
Supports Single-stage Heating
Yes
Temperature Displayed
Indoor and outdoor temperature
Temporary Vacation Override
Yes
Type
Thermostat
Voice Controlled
Yes
Warranty
3-year limited
Wi-fi Compatibility
Yes
Works With Amazon Alexa
Yes
Works With Android
Yes
Works With Apple Homekit
Yes
Works With Ios
Yes
Works With Smartthings
Yes
Works With Google Assistant
Yes
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Is this thermostat compatible with a Comfortmaker modulating furnace?
ecobee smart thermostats are designed for use with 24VAC HVAC systems but let's take a closer look at this system compatibility together. Please reach out to our Customer Support team with photos of the wiring and the make and model number of your HVAC system. https://www.ecobee.com/get-help/
Date published: 2022-04-29
For some reason my ecobee is showing a blank screen . Nothing appears when I tap the face.
That doesn't sound right. Please send an email to support@ecobee.com with your serial number, email address, and a photo of your current wiring. Always happy to help!
Date published: 2021-05-12
Can I set it to run my furnace fan manually
Hi Debbie! There are a few different ways to control your HVAC fan with ecobee smart thermostats. Learn more: https://support.ecobee.com/hc/en-us/articles/360004798951-How-to-control-your-HVAC-system-s-fan-with-your-ecobee-thermostat
Date published: 2021-04-28
Is it Working on 240volt or only on loue voltage
All ecobee smart thermostats are designed to work with 24 VAC HVAC system.
Date published: 2021-01-26
i am building a cabin. Do I need to have wifi at the cabin for the thermostat to work from the app on my android phone?
Thanks for your question! Yes, you would need a Wi-Fi connection to enable your ecobee smart features and for access through the ecobee app.
Date published: 2020-09-17
Does it come in white colour
At this time, ecobee smart thermostats only come in black. I'll let the team know you'd love to see a white version!
Date published: 2020-05-06
How to turn it up past 26
The temperature range is set under Settings, Preferences, Heating Range.
Date published: 2019-01-03
Do you have to buy room sensors?
There was one Ecobee that came with one, but yes, they are extra. They are not necessary for the thermostat to work, it is just if you want a warmer room.
Date published: 2018-12-28
ECOBEE3 Lite Smart Thermostat - Programmable - Black is rated
out of
5 by
2115.
Rated 5 out of
5
by
TGraham from
Great product even better customer service
After noticing I didn't have the infamous "c" wire connected to my old thermostat. I called for help and spent over an hour on the phone tracing my old wires back and locating what would be the "c" wire. I tried to give up and just get an electrician but Katrina helped me work through it. Pulled the panel off the unit, traced each wire and took pics, located what we needed, pulled the spare (which existed just was not used), and got it working. Once it powered up we tested it and set it up with her help. I can't say enough about the customer service. Thanks for spending over an hour on new years Eve helping us out.
Thanks Katrina
Ticket# 1897733
Date published: 2020-12-31
Rated 5 out of
5
by
JackTD from
Great Device - Amazing Customer Support!
The thermostat is easy to set up and intuitive to use. I'm also able to use it via Smartthings on my mobile or change settings with the ecobee app from the distance as well. The awesome customer support I got from ecobee over the phone for me is the reason why I wouldn't even try a different brand in the future (provided the thermostat is working properly). The customer support was patient and the knowledge and assistance over the phone was really impressive! It was my first time replacing a thermostat and I had to change the wiring a bit but with the help of the support team it worked in the end without any issues. Great support, thanks again!
Date published: 2019-10-09
Rated 1 out of
5
by
DAG1 from
Looks good but doesn't work
Setup was easy and I was initially encouraged. From the start, though, it couldn't read a constant temperature. As compared to my reference thermometer, the ecobee temperature reading was erratic and so temperature control was terrible. I'd go upstairs one day and the temp was 73 F, when the ecobee thought it was controlling at 77. Two hours later with the same set point temp was 81F. Tech support only offered to sent a remote temperature sensor, not to fix or replace the device. I've gone back to the dumb thermostat that can measure a consistent temp.
Date published: 2020-06-23
Rated 5 out of
5
by
Smedley from
I Like It
Pros:
Great support. Excellent app. Cannot only choose between auto or run for the fan, but also choose the mininimum min/hr the fan runs on auto. Can choose to have the heat turned back at night and restored to a certain temp by a certain time in the morning. The tstat does the rest. The tstat allows the temp to vary by 0.5 deg C and cycles the heat as required. Can install the app on multiple devices, such as android phone, pc, and Apple ipad, and monitor and/or control the system remotely from either device.
Cons:
Needs C wire. I had to run a new cable. The tstat run stats are at least an hour old when the app accesses them.
Date published: 2018-11-22
Rated 5 out of
5
by
Jtram from
Great Addition!
I’ve had the lite set up for 1 year in my two bedroom apartment. The thermostat is in a hallway with no vents- I use three sensors (living, master, office) and they really do work well- they track occupancy and I love that at night I can set it to on read in the bedroom. Highly recommend! The application is a little hard to navigate at first as lots of clicking through versus all on one screen- but after a few weeks you get very used to it. Installed it myself in a matter of 5 minutes!
Date published: 2021-01-06
Rated 1 out of
5
by
ms_shane from
Temperature reading fluctuates 5 degrees
I've had this installed 2 days. The temperature reading is fluctuating by 5 degrees. Two days of 3 tech support sessions have concluded this is because a ceiling fan *in the next room* is causing a slight breeze across the front of the thermostat that is affecting its accuracy. I am able to duplicate this at will by turning the ceiling fan in the next room on/off. My 2nd gen ecobee in a didn't have this problem in an identical setup.
Date published: 2021-09-30
Rated 5 out of
5
by
SharonS from
Excellent features
I’ve had this for 2 days. I originally purchased a Honeywell T9 which I had for 4 days. I returned the T9 because it was short cycling my AC. After researching, I realized that the differential on the T9 was too small and could not be changed. To complicate matters, the room temperature on the T9 would round to the set temperature when it was within 1.5 degrees.
Enter the ecobee. The display temperature is accurate. I can see what the temp is when the cycle starts and stops. I was capable of setting both a heat and cool differential. I also can set a time to run the fan after the cycle to dissipate the air in my ducts. Lastly, you can monitor the system run times. The HomeIQ portal provides all the data you need. Needless to say, ecobee is the one to beat.
I recommend this highly. It was a breeze to install. It even includes a wall plate to cover any existing holes. This is a 5 star piece of equipment.
Date published: 2021-08-27
Rated 5 out of
5
by
joca from
Much better than Nest
A friend of mine was looking for a "smart-thermostat" and after hearing of the hassles I've had with my Nest and Google customer support, and my insistence to avoid one of those, bought an Ecobee, which i helped install.. though I'm certain they could have done it without me.
What a difference. It was up and running in no time. No phone calls to support, and to be honest, I'm a little envious of the way it looks on the wall.
It'll be my next thermostat.
Date published: 2021-12-03