Smart Thermostat Lite
Simple design. Serious savings. Trusted by pros.
Are you a homeowner?
Find out everything you need to know about all the cool features.
The smart choice for contractors, exclusive to our Pro customers.
Meet the all-new Smart Thermostat Lite. Built for simplicity with input from contractors, it's easy to install and use, hardwired for reliability, built to last, and designed to save your customers up to 23%* on their heating and cooling costs. Best of all, it's a Pro customer exclusive.
- Hardwired for reliability — batteries not required
- 1-wire accessory support
- Setup designed for pros
The right fit for your next project.
See how Smart Thermostat Lite fits into our thermostat line-up.
Thermostat Features | |||
|---|---|---|---|
| Perfect for | Light commercial & multifamily | Single-family & multifamily | Premium homes & condos |
| Savings on heating and cooling costs | Up to 23%* | Up to 26%* | Up to 26%* |
| Premium industrial design features | Glass display | Glass display | Metal body, glass display |
| Display size | H: 58 mm, W: 43 mm | H: 70 mm, W: 70 mm | H: 70 mm, W: 70 mm |
| Resolution | 240px × 320px | 540px × 540px | 540px × 540px |
| 24V heating and cooling system compatibility | ~95% | ~90% | ~95% |
| Wire terminals | Rc, Rh, W1, W2, Y1, Y2, C, OB, G/PEK, ACC | R, W1, W2/OB, Y1, Y2, C, PEK+, G | Rc, Rh, W1, W2, Y1, Y2, C, O/B, PEK+, G, ACC+, ACC- |
| HVAC accessory support | 1-wire acc. | 1-wire acc. | 1-wire acc, 2-wire acc., or dual accessory support |
| Ventilator support | HRV, ERV, Standard | HRV, ERV, Standard | HRV, ERV, Standard |
| Trim Kit included in the box | |||
† Compatible Apple home hub required to enable Siri on Smart Thermostat Premium. Apple HomePod and HomePod mini are compatible home hubs. All Siri capabilities are available on the thermostat except voice calling.
‡ Requires ecobee Smart Security Subscription. Please note, Smart Thermostat Lite support for ecobee Smart Security is coming soon.
§ Requires ecobee Smart Security Subscription and SmartSensor for door and windows (sold separately).
¶ You can use geofencing on an Android phone via the ecobee app, if you use iOS, then geofencing is handled via Apple HomeKit and requires a HomeKit hub. Learn more.
What you loved about ecobee3 lite, with a sleek new design and accessory support.
Smart Thermostat Lite was built with input from contractors like you, making it the perfect solution for your HVAC needs. It works with most HVAC systems and can now easily support and control 1-wire HVAC accessories.
Need a common wire? Grab our Power Extender Kit (PEK) — sold separately.
Hardwired for reliability.
Keep jobs running smoothly and your customers happy with ecobee Smart Thermostat Lite. It’s hardwired for reliability and built to last with an extended warranty when installed by a pro. Plus, spend more time focusing on your business with reduced customer callbacks thanks to Smart Thermostat Lite.
Quick installation. Easy setup.
Save valuable time and effort with Smart Thermostat Lite's Pro First Run Setup experience. Installation is easy to learn and master, letting you move on to your next job even faster.
Works with leading smart home ecosystems, including Apple Homekit.
Apple HomeKit
![Works with Amazon Alexa.]()
Alexa Built-in
![Logo for Google - "Works with Hey Google"]()
Google Assistant
![Alarm.com logo]()
Alarm.com
Features & Specs:Delight customers. Avoid callbacks.
Unlike battery-operated smart thermostats, this hardwired device minimizes the hassle of replacing batteries and reduces the risk of product failure. Find out what else is in-store for you and your customers.
Gallery:The difference is in the details.
Stronger, more durable, more reliable, and more beautifully designed thermostats.
Built to last.
ecobee smart thermostats are built to last with quality materials and are supported by free software upgrades.
Industry-leading warranty.
Our smart thermostats are covered by a 5-year extended warranty when installed by a pro.
Dedicated Pro support.
Setup is easy to learn and master and our dedicated Pro support line provides quick and reliable help.
* Compared to a hold of 72°F/22°C.
¹ Based on an internal analysis conducted in April, 2021, select ecobee customers in North America saved up to 23% on their heating and cooling costs. When you add up the average cost of electricity and natural gas used for heating and cooling ($1,091 USD/$1,490.52 CAD) and multiply it by 23% (Smart Thermostat Lite’s savings claim) you get savings of up to $250/$327 (USD/CAD) per year. Annual savings will vary based on your energy use and location.
2 Smart Thermostat Lite is not compatible with ecobee Room SensorTM, our first-generation remote thermostat sensor.