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After $50.00 in potential instant savings!
The ecobee3 Lite Thermostat is packed with smart features to help you take charge of your home comfort and energy bills. It learns your schedule and programs itself, turns itself down when you are away, and offers advanced reporting to help you save money. When programmed properly, a smart thermostat can reduce energy use from 5%-15% per year.
Before ordering, please confirm system compatibility.⇒ View Compatibility Tool
In stock
When you enroll in AC Rewards and activate your thermostat!
*Customers who live in apartments or condominiums are not eligible
$50 Instant Rebate + $100 Bill Credit after activating your thermostat.
Sorry, you are not eligible for the additional Demand response discount at this time.
Learn reasons why
You may be eligible for the Demand Response rebate. Please complete your Xcel Energy Store Marketplace Account.
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$199.99
Smart savings: Completely redesigned inside and out with our biggest breakthroughs yet for a device you’ll be proud to display. Solve your comfort, home health, and security needs, all in one beautiful design.
Reads the room: Unlock a healthier home with indoor air quality monitoring, including alerts and tips. Built-in air quality monitor alerts you when air quality is poor and offer tips on how to improve it. Air filter change reminders make cleaner air a breeze. Plus, the included ecobee SmartSensor detects which rooms are occupied and adjusts the temperature for perfect comfort. It can also tell when the home is empty, and can reduce heating or cooling to lower energy costs.
HVAC Compatibility
Works with most 24VAC HVAC equipment, including conventional furnaces and air conditioners (2H/2C), heat pumps (2H/2C + 2 stage AUX heat), boilers, and PTACs or fan coil units with up to 3 fan speeds. One 1-wire accessory or one 2-wire accessory support for humidifiers, dehumidifiers, and ventilators (HRV/ERV).
Works with other ecobee products
Smart Thermostat Premium connects to ecobee Smart Security (subscription required), SmartCamera with voice control, SmartSensors, and SmartSensors for doors and windows.
Installation
ecobee thermostats are powered by a dedicated 24VAC power supply using a Common wire (or C wire) for consistent performance, even in the coldest weather. The included Power Extender Kit allows for installation in most homes without a C wire.
Thermostat sensors
TemperatureHumidityOccupancy (Radar)Proximity (Radar)
Wire terminals
Rc G Y1 Y2 OB PEK+ C Rh W1 W2 ACC- ACC+
Voice control
Yes
Warranty
Industry-leading 3-year warranty.
Connectivity and security
Dual-band Wi-Fi: 802.11 b/g/n @ 2.4GHz, 802.11 a/n/ac @ 5GHzBluetooth 5.0WPA, WPA2, WPA3 encryption methodsDHCP (dynamic) or static IP addressing168-bit SSL encryption915MHz radio
Temperature range
Desired Temperature: 45° to 92°F (7° to 33°C)Display: 40° to 100°F (5° to 37°C)Sensitivity: +/− 1°F (+/− 0.5°C)Operating: 14° to 122°F (-10° to 50°C)
Humidity range
Display: 20% to 90%Sensitivity: +/− 5%Operating: 5% to 95% RH (non-condensing)
Storage−31° to 113°F (−35° to 45°C)5% to 95% RH (non condensing)
Air quality monitor
Unlock superior home health with a built-in air quality monitor that alerts you when air quality is poor and gives simple steps on how to improve it.
Sustainability
Recycled packagingMercury-freeArsenic-freePVC-freeROHS compliant
Language
English
Powering method
Wired 24VAC through terminals C and Rc.Power Extender Kit enables you to reliably power your thermostat without having to run a fifth wire.
Power consumption
Up to 3.5 VA
Bandwidth
15-20 MB/month (dependent on Alexa Voice Service usage)
What’s in the box
Smart Thermostat PremiumThermostat mounting plateSmartSensor with detachable stand and adhesive wall-mountQuick-start guideWire labelsScrews and drywall anchors
Compatibility Checker
Most customers are able to install their ecobee smart thermostat in 30 minutes or less.
Frame
Black front, die cast metal frame – zinc alloy
Display
4 in. full-color LCD touchscreen540 x 540 pixel display
Product dimensions
Length: 403.89 mm (4.09 in)Width: 103.89 mm (4.09 in)Depth: 25.9mm (1.02 in)
ENERGY STAR® Certified
