Ecobee3 Lite: Smart Energy-Saving Thermostat with Siri Alexa, Google Control
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Ecobee3 Lite: The Smart, Energy-Saving Thermostat - Control with Siri, Alexa & Google


The ecobee3 Lite Smart Thermostat is a programmable Wi-Fi thermostat that is compatible with Siri, Alexa, and Google Assistant. It's Energy Star certified and designed for DIY installation. The device allows users to save up to 23% annually on heating and cooling costs compared to a hold of 72°F. It offers control from any Android or iOS device and can be integrated with SmartSensors to manage temperature disparities in different rooms. The thermostat can automatically pause heating or cooling if a door or window is left open, provided it's paired with the ecobee SmartSensor for doors and windows. The product has been recognized as an ENERGY STAR Partner of the Year award winner. It's compatible with most 24VAC HVAC systems and comes with a Power Extender Kit for homes without a C-Wire.


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About this item

Save up to 23% annually on heating and cooling costs (compared to a hold of 72°F)

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 Smart Security subscription)

ecobee was named an ENERGY STAR Partner of the Year award winner

Integrates seamlessly with your preferred smart home system. Connectivity - Wi-Fi, 802.11 b/g/n @ 2.4 GHz

Compatible with most 24VAC HVAC systems: furnaces, ACs (2H/2C), heat pumps (2H/2C + 2 stage AUX), boilers, PTACs, and fan coil units (3 fan speeds). Includes Power Extender Kit for C-Wire-less homes, ensuring easy installation.

From the manufacturer


what in the box ecobee


ecobee3 lite is designed to save you money and energy while reducing your environmental footprint. Personalize its settings to suit your schedule and temperature preferences so your home’s temperature is always just the way you like it. Easy to install and use, it’s controllable from anywhere using your Android or iOS smartphone, tablet, or your Apple Watch. Enjoy elevated comfort and energy savings with the ecobee3 lite Smart Thermostat.

: B06W56TBLN
: 500 Items
Hurry! only 500 items left in stock.

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Rated 4.67 on the scale 1 - 5 based on 3 customer reviews

So Far It's Great!

I only said "so far" because you just never really know with something electronic until it's been running for a while, but so far I love this thing. Very easy to set up, and when I had an issue because of the wiring of our Heat Pump, support was great and had me fixed is a short while. They knew exactly what was going on and why, and how to quickly change it to fix the issue. Great integration with our Alexa systems which is great, because I am automating our home using Alexa. Lights, security system with cameras, TV's, etc., etc..

Nice thermostat and great Installation Instructions

I've only had the thermostat operational for 24 hours, but I wanted to pass on how easy the installation was and how simple the thermostat is to use. Prior to ordering, I researched different smart thermostats and read many "C-Wire: Yes or No" discussions. I dreaded removing my old non-Wifi thermostat and discovering I did not have the C-Wire. And I didn't. However, as a retired process writer, I found the installation instructions booklet refreshingly well written and illustrated. No C-wire? No problem. The instructions walked me through installing the provided Power Extender Kit (PEK) at the furnace.

A"Smart" Thermostat That Works!

This thermostat effectively maintains home comfort while optimizing energy savings. Installation was simple, and the app is user-friendly. It quickly adapts to your home's cooling needs, adjusting temperatures based on your preferences. I've set a +1-degree swing, which ensures the AC runs for 20-30 minutes, unlike my old thermostat that frequently switched on and off, possibly damaging my AC compressor. Surprisingly, this thermostat also reduced my home's humidity by 15%, keeping it around 40%, making the environment noticeably more comfortable. I never realized a thermostat could impact humidity so significantly.

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