ecobee 3 Lite Smart Wi-Fi Thermostat (EB-STATE3LTC-02)

Block demo
Well-priced with the essential features to start saving you up to 23%* annually on heating and cooling. Connect to SmartSensor (sold separately) for better comfort in the rooms that matter most.

Where comfort meets savings.

Well-priced with the essential features to start saving you up to 23%* annually on heating and cooling. Connect to SmartSensor (sold separately) for better comfort in the rooms that matter most.

* Compared to a hold of 72°F/22°C.

Works in harmony with leading smart home ecosystems including Apple HomeKit.

ecobee thermostats work seamlessly with Apple HomeKit on all iOS devices including Apple Watch, and leading smart home ecosystems including the Google Assistant.

ENERGY STAR approved.

Certified to meet the highest standards of home comfort and energy conservation.

Control from anywhere.

Adjust the temperature and turn on vacation mode anytime, anywhere.

Leave home with peace of mind.

Sends an alert if there is a disruption, like a sudden temperature drop that could lead to frozen or burst pipes.

Works with SmartSensor for enhanced comfort.

SmartSensor keeps you comfortable where you are, not just where your thermostat is. Simply place SmartSensor in the bedroom, office, or child’s room for total comfort and control.

eco+ makes saving energy automatic.

Unlock energy savings on heating and cooling and enhanced comfort with eco+, a free software upgrade for ecobee thermostats.

  • Reduces strain on the electricity grid.1
  • Automatically heats or cools when electricity is cheaper and cleaner.1
  • Adjusts for Comfort in high and low humidity.
  • Learns your routine and recommends changes to your thermostat schedule.
1 - Where applicable.

Get comfortable with saving.

ecobee3 lite heats and cools more efficiently over time by factoring in weather patterns and HVAC system performance. Plus, monthly energy reports show how much you saved and how to save even more.

Notifications and reports

Home IQ

Get a monthly savings report and compare your results to other homes in the area. It’s like an energy audit at no extra cost.

Alerts & Reminders

The app notifies you of sudden temperature drops that could result in frozen or burst pipes and when the system needs maintenance.

Advanced thermostat capabilities

Smart Recovery

As ecobee3 lite gets to know your home’s heating and cooling patterns, it learns how long it takes to reach your desired temperature. If you routinely wake up at 6 a.m., Smart Recovery will start heating and cooling your home in advance so it’s comfortable when you wake up.

AC Overcool to Dehumidify

This feature will use your air conditioner to lower the indoor humidity to keep you cool and comfortable if you don’t have a dehumidifier. Supports two-stage heating and cooling

ecobee thermostats are optimized for one or two-stage heating and cooling equipment. Staging control lets you get the level of comfort you like while lowering energy use.

Fan Dissipation

ecobee3 lite automatically runs the fan after a cycle to maximize heating, cooling, and dehumidification.

The right temperature in the right spaces with SmartSensor

SmartSensor (sold separately) unlocks the following additional features:

Smart Home & Away

Automatically adjusts the temperature for energy savings when you leave home and restores your comfort settings when you return.

Follow Me

Detects which rooms are in use and adjusts the temperature accordingly for comfort in those spaces.

Thoughtfully designed for everyday life.

The display lights up when you’re nearby so you can check the weather and the five‑day forecast.

Install with confidence on your own or with our help.

Everything you need to install your smart thermostat, besides basic tools, is in the box and installation should take about 45 minutes. If you need assistance, ecobee helpful support team is always just a phone call away. Or hire a local professional to install it for you.

Operating environment Only install in a dry indoor location
Powering Methods Wired 24VAC through terminals C and Rc.

Power Extender Kit enables you to reliably power your thermostat without having to run a fifth wire.
Wire Terminals Rc
W1 (AUX1)
W2 (AUX2)
Thermostat sensors Temperature
Connectivity Wi-Fi, 802.11 b/g/n @ 2.4 GHz
WEP 64, WEP 128, WPA and WPA2 encryption methods
DHCP (dynamic) or static IP addressing
168 bit SSL encryption
Mounting Screws
Bandwidth 15-20 MB/month
Sustainability Recycled packaging
ROHS compliant
Storage −31° to 113°F (−35° to 45°C)
5% to 95% RH (non-condensing)
More Information
More Information
Product Parts Warranty3 Year Limited
Product Labour Warranty3 Year Limited
Height (in.)4
Depth (in.)0.8
Width (in.)4
Width 2 (in.) 6.7
Height 2 (in.)6.7
Depth 2 (in.)0.2
What's Included

• ecobee3 lite thermostat
• ecobee3 lite backplate
• Install guide
• Wire labels
• Drywall plugs
• Screws
• Power extender kit
• Large trim plate
ecobee 3 Lite Smart Wi-Fi Thermostat