The 10 Best Energy Efficient Thermostat in 2024 - Features, Reviews and FAQs

PRIVACY PROTECTION*: Sensi won’t sell your personal information to third parties

SAVE ABOUT 23% ON HVAC ENERGY*: The ENERGY STAR-certified Sensi smart thermostat can help you save energy with features like flexible scheduling, remote access, and usage reports

EASY DIY INSTALLATION: Use the built-in level and step-by-step app instructions for a quick installation. Works with HVAC equipment found in most homes. Common wire (c-wire) is not required in most applications

SMART MAINTENANCE: Sensi can help monitor the performance and efficiency of your HVAC system by delivering valuable usage reports, alerts about your equipment, and maintenance reminders like filter replacement

SIMPLE CONFIGURATION: Looks and feels like a thermostat. Has buttons and fits the same space as a traditional thermostat so you don’t have to patch and paint your walls

Save Energy: With customizable routines that conserve energy when you’re away and daily energy reports, you can create a greener home and reduce your energy costs.

Comfortable Christmas Gift: Connect up to 16 Levoit sensors (sold separately) to the smart thermostat, helping you to monitor each room and pick the most comfortable temperature for you.

24/7 Scheduling: Customize routines that will automatically adjust the temperature for you without the need for manual changes.

Control From Anywhere: Let Amazon Alexa or Google Assistant adjust the temperature at your command when you connect your thermostat to the free VeSync app.

Smart Scenes: Take control of your home's atmosphere by connecting Levoit sensors, smart humidifiers, and smart air purifiers to the thermostat with the VeSync app.

User-Friendly Touchscreen: The 4-inch, high-resolution display automatically adjusts its brightness based on the amount of light in the room, allowing you to easily view your indoor temperature, humidity, and the weather forecast.

Easy HVAC Monitoring: Receive notifications when there’s a system malfunction or when your indoor temperature goes outside your preferred range.

High Compatibility: This thermostat comes with a C-wire adapter and is compatible with Heating and Cooling Systems, Cooling Only System, Heat Pump Systems, and more. Does NOT work with heating only systems(No C-wire) or high voltage systems(120V-240V).

Easy to Install: The average DIY installation takes about 35 minutes. Simply follow the step-by-step installation guide in the VeSync app.

PRIVACY PROTECTION*: Sensi won’t sell your personal information to third parties.SMART MAINTENANCE: Sensi can help monitor the performance and efficiency of your HVAC system by delivering important usage notifications, alerts about your equipment, and maintenance reminders like filter replacementBACKED BY HVAC EXPERTISE: More than 100 years of experience with HVAC systems went into the development of SensiSMART HOME COMPATIBLE: Sensi easily integrates with popular smart home platforms including Amazon Alexa, Apple HomeKit, Google Assistant and Samsung SmartThings

EASY DIY INSTALLATION: Use the built-in level, illuminated easy-click terminals and step-by-step app instructions for a quick installation. Works with the HVAC equipment found in most homes. Common wire (c-wire) is required

SAVE ABOUT 23% ON HVAC ENERGY*: The ENERGY STAR-certified Sensi smart thermostat can help you save energy with features like flexible scheduling, remote access and usage reports

CONTROL FROM ANYWHERE: Remotely control your home comfort from your smartphone or tablet using the Sensi mobile app for Android and iOS devices

SMART MAINTENANCE: Sensi can help monitor the performance and efficiency of your HVAC system by delivering valuable usage reports, alerts about your equipment, and maintenance reminders like filter replacement

BACKED BY HVAC EXPERTISE: More than 100 years of experience with HVAC systems went into the development of Sensi

SMART HOME COMPATIBLE: Sensi easily integrates with popular smart home platforms including Amazon Alexa, Apple HomeKit, Google Assistant and Samsung SmartThings

Save up to 26% per year on heating and cooling costs. ENERGY STAR certified. Automatically adjusts the temperature when you’re away to never heat or cool an empty home. Compared to a hold of 72°F.Compatibility : Works with most 24VAC HVAC equipment, including conventional furnaces and air conditioners (2H/2C), heat pumps (2H/2C + 1 stage AUX heat), boilers, and PTACs or fan coil units with up to 3 fan speeds. 1 wire accessory support for humidifiers, dehumidifiers, and ventilators (HRV/ERV).

Enjoy comfort without compromise. Smart Thermostat Enhanced preheats or precools your home before you arrive, so it’s the perfect temperature the moment you walk in. Automatically adjusts to your desired temperature when you’re home or sleeping to keep you comfortable day and night.

Easy to install and use every day, ecobee Smart Thermostat Enhanced comes with everything you need for installation. Most people install it themselves in about 45 minutes or less. Use your smart home platform and the ecobee app to control your thermostat from anywhere with your smartphone, tablet, or Apple Watch.

ecobee Smart Thermostat Enhanced is made with quality materials and designed to last on your wall for over a decade. It’s hardwired so you never have to worry about losing control or replacing batteries. If you run into problems, our dedicated support team is available 7 days a week.

Add in a SmartSensor which allows you to measure the temperature in rooms that matter most, like the nursery or bedroom. It reads temperature and movement in whatever room it is placed in for complete home monitoring and energy savings (SmartSensor sold separately).

Compatibility : Works with most 24VAC HVAC equipment, including conventional furnaces and air conditioners (2H/2C), heat pumps (2H/2C + 1 stage AUX heat), boilers, and PTACs or fan coil units with up to 3 fan speeds. 1 wire accessory support for humidifiers, dehumidifiers, and ventilators (HRV/ERV).

PRIVACY PROTECTION*: Sensi won’t sell your personal information to third parties

EASY DIY INSTALLATION: Use the built-in level, illuminated easy-click terminals and step-by-step app instructions for a quick installation; Works with the HVAC equipment found in most homes. Common wire (c-wire) is required

SAVE ABOUT 23% ON HVAC ENERGY*: The ENERGY STAR-certified Sensi smart thermostat can help you save energy with features like flexible scheduling, remote access and usage reports

SLEEK, MODERN DESIGN: The large color display features easy-to-read temperatures and intuitive menus. Available in black, white and silver to complement your home décor

CONTROL FROM ANYWHERE: Remotely control your home comfort from your smartphone or tablet using the Sensi mobile app for Android and iOS devices

SMART MAINTENANCE: Sensi can help monitor the performance and efficiency of your HVAC system by delivering valuable usage reports, alerts about your equipment, and maintenance reminders like filter replacement

No more programming: With Auto-Schedule, the Google Nest Learning Thermostat learns from you and programs itself..Product note: You can also check your system’s compatibility before purchasing a Nest thermostat with our online Nest Compatibility Checker on the Google Nest support page

Home/Away Assist: don't heat or cool an empty home. Home/Away Assist adjusts the temperature after you leave.

Remote control: Control your thermostat from anywhere using the Nest app.

Know more, save more Check your Energy History to see how much energy you use and why.

Look for the Leaf: The Nest Leaf appears when you choose a temperature that saves energy.

COMFORT COMES IN YOUR COLOR. Personalize your Wi-Fi Smart Color Programmable Thermostat to fit your décor.

SAVE ENERGY AND GET REWARDED by checking with your energy provider about available energy savings rebates to save on your purchase (use rebate finder link above). Plus, eligible customers can enroll in ongoing energy savings incentives with their energy provider to keep saving all year long.

YOUR SCHEDULE. YOUR WAY. Flexible programming options for your schedule or utility company’s peak rate pricing.

EASY OPERATION AND INTUITIVE. Bright, easy-to-read touchscreen makes for simple operation.

COMPATIBLE WITH: Forced air (gas, oil or electric), hot water and steam, and heat pumps with electric backup. Does NOT work with electric baseboard heat (120-240V). C-Wire required.

ENERGY STAR certified. Help save energy, track your heating and cooling with monthly energy reports and get personalized tips on reducing energy use.

Before purchasing, check to see if this thermostat is compatible with your home and to determine if your home needs a C-wire power adapter.

Works with most heat/cool oil furnace systems. Will not work with heating only oil furnace systems unless a C-Wire is present.

Smart upgrade - Amazon Smart Thermostat is an easy way to switch from a traditional thermostat and help reduce energy usage.

Save money - After purchase, Amazon will send you an email with details about rebates that may be available from energy providers in your area. Explore rebates above.

Save energy - According to EPA estimates, ENERGY STAR certified thermostats save an average of $50 on yearly energy bills.

Automatic comfort - Alexa can do the programming for you, updating the temperature to keep you comfortable.

On-the-go control - Let Alexa set the temperature, or set it yourself from anywhere with the Alexa app.

You can do it - The Alexa app will guide you through the installation process, but customer service is always available.

Reliable - Made with Honeywell Home Thermostat Technology and backed by 130 years of experience.

ENERGY STAR certified. Help save energy, track your heating and cooling with monthly energy reports and get personalized tips on reducing energy use.

SAVE ENERGY AND GET REWARDED by checking with your energy provider about available energy savings rebates to save on your purchase (rebate finder link above). Plus, eligible customers can enroll in ongoing energy savings incentives with their energy provider to keep saving all year long.

C-WIRE POWER ADAPTER REQUIRED: Before purchasing, check to see if this thermostat is compatible with your home and to determine if your home needs a C-wire power adapter.

SMART HOME INTEGRATION. The Wi-Fi 7-Day is compatible with voice assistant devices like Amazon Alexa, Google Assistant, Microsoft Cortana, and more.

THERMOSTAT THAT FITS YOUR LIFE. 7-day, 4 periods per day, flexible programming lets you sync your comfort with your schedule.

EASY OPERATION AND INTUITIVE. Big, backlit digital display and easy controls make for a user-friendly experience.

EASY-TO-USE-APP. Choose from the Total Connect Comfort app or the Resideo app to control your Wi-Fi thermostat anytime, anywhere.

COMPATIBLE WITH: Forced air (gas, oil or electric), hot water and steam, and heat pumps with electric backup. Does NOT work with electric baseboard heat (120-240V). C-Wire required.

Works with most heat/cool oil furnace systems. Will not work with heating only oil furnace systems unless a C-Wire is present.

ENERGY STAR certified. Help save energy, track your heating and cooling with monthly energy reports and get personalized tips on reducing energy use

Save Energy and Get Rewarded by checking with your energy provider about available energy savings rebates to save on your purchase (rebate finder link above). Plus, eligible customers can enroll in ongoing energy savings incentives with their energy provider to keep saving all year long.

7-Day Flexible Scheduling or Location Based Temperature control (GeoFencing)

The T5 Smart thermostat is fully compatible with Amazon Alexa, Apple HomeKit, Google Assistant, IFTTT, Cortana and other ecosystems

Adaptive recovery learns how long it takes to achieve the right temperature at the right time and automatically runs your system to get to your desired temperature when you want it, with auto change from heat to cool

COMPATIBLE WITH: Forced air (gas, oil or electric), hot water and steam, and heat pumps with electric backup. Does NOT work with electric baseboard heat (120-240V). C-Wire required.

Before purchasing, check to see if this thermostat is compatible with your home and to determine if your home needs a C-wire power adapter.

Works with most heat/cool oil furnace systems. Will not work with heating only oil furnace systems unless a C-Wire is present.