What Are the Key Features to Look For In A Smart Thermostat?

23 minutes read

When considering a smart thermostat, there are several key features to evaluate to ensure it meets your needs. First, assess the compatibility with your heating and cooling systems to avoid installation issues. User-friendly interfaces, whether on the device itself or through an app, are crucial for ease of use. Look for learning capabilities, where the thermostat can adapt to your schedule and preferences automatically over time to optimize energy efficiency. Integration with other smart home devices, such as smart speakers or hubs, adds convenience for unified control. Remote accessibility through a smartphone app allows for energy management and adjustments when you are away from home. Energy usage reports and insights can help you understand your consumption patterns and identify opportunities to lower costs. Additionally, advanced features like geofencing use your smartphone's location to adjust settings when you leave or approach home. Sensor support, for monitoring temperature and occupancy in different rooms, can offer more precise climate control. Finally, consider installation requirements and whether professional setup is needed based on your technical comfort level.

Best Smart Thermostats for Houses of February 2025

1
ecobee Smart Thermostat Enhanced - Programmable Wifi Thermostat - Works with Siri, Alexa, Google Assistant - Energy Star Certified - Smart Home

Rating is 5 out of 5

ecobee Smart Thermostat Enhanced - Programmable Wifi Thermostat - Works with Siri, Alexa, Google Assistant - Energy Star Certified - Smart Home

  • 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.
  • 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. Adjusts the temperature to account for humidity so your home always feels like the temperature you’ve set.
  • 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.
2
ecobee Smart Thermostat Premium with Smart Sensor and Air Quality Monitor - Programmable Wifi Thermostat - Works with Siri, Alexa, Google Assistant

Rating is 4.9 out of 5

ecobee Smart Thermostat Premium with Smart Sensor and Air Quality Monitor - Programmable Wifi Thermostat - Works with Siri, Alexa, Google Assistant

  • Save up to 26% per year on heating and cooling costs. ENERGY STAR certified. Included SmartSensor (50 dollar value) adjusts the temperature in the rooms that matter most to reduce hot or cold spots to keep you comfortable. Compared to a hold of 72°F.
  • Built-in air quality monitor alerts you to poor air quality, provides tips on how to improve it, and reminds you when it’s time to change your furnace’s air filter.
  • Premium materials and advanced engineering mean a large, vibrant display with a cinematic interface, a timeless design, and next level occupancy sensing.
  • ecobee Smart Thermostat Premium is a complete home monitoring hub that includes built-in smoke alarm detection and alerts to possible break-ins when your system is armed. Get notifications during sudden temperature drops that could cause damage. ecobee Smart Security plan required
  • Comes with a smart speaker and your choice of Siri or Alexa Built-in. Control your home using the power of your voice and listen to your favorite Spotify playlists and podcast through your thermostat’s speaker. Apple home hub required to enable Siri on Smart Thermostat Premium
3
Google Nest Thermostat - Smart Thermostat for Home - Programmable Wifi Thermostat - Snow

Rating is 4.8 out of 5

Google Nest Thermostat - Smart Thermostat for Home - Programmable Wifi Thermostat - Snow

  • ENERGY STAR certified smart thermostat for home that helps you save energy and stay comfortable.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.Connectivity Protocol : ‎Wi-Fi.Connectivity Protocol : ‎Wi-Fi
  • The Nest Thermostat is designed to work without a C wire in most homes, but for some systems, including heating only, cooling only, zone controlled, and heat pump systems, you’ll need a C wire or other compatible power accessory. Lock feature: No
  • Nest Thermostat turns itself down when you leave, so you don’t waste energy heating or cooling an empty home; easily program an energy efficient schedule in the Google home app on your Android or iPhone
  • Remote control lets family members change the thermostat temperature from anywhere on a phone, laptop, or tablet[1]
4
Amazon Smart Thermostat – Save money and energy - Works with Alexa and Ring - C-wire required

Rating is 4.7 out of 5

Amazon Smart Thermostat – Save money and energy - Works with Alexa and Ring - C-wire required

  • Smart upgrade - Amazon Smart Thermostat is an easy way to switch from a traditional thermostat and help reduce energy usage.
  • Supports temperature sensors - use compatible Echo devices (Echo Dot (4th and 5th gen), Echo Dot with clock (5th gen)), and the Amazon Smart Air Quality Monitor as temperature sensors to address hot or cold spots in your home.
  • 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.
5
Google Nest Thermostat E - Programmable Smart Thermostat for Home - 3rd Generation Nest Thermostat - Works with Alexa,White

Rating is 4.6 out of 5

Google Nest Thermostat E - Programmable Smart Thermostat for Home - 3rd Generation Nest Thermostat - Works with Alexa,White

  • Programmable smart thermostat that learns the temperatures you like and programs itself to help you save energy and stay comfortable; start with a simple schedule and easily adjust it whenever you like in the Nest app
  • Home/Away Assist automatically adjusts itself to an Eco Temperature after you leave, so you don’t heat or cool an empty home. Connectivity requirements-Wi-Fi internet connection, Phone or tablet running iOS or Android, Nest app
  • Remote control lets family members change the temperature on this smart thermostat from anywhere using a phone, laptop, or tablet[1]
  • The Nest Thermostat E has HVAC monitoring, which looks out for your heating and cooling systems; sends an alert if something doesn’t seem right, along with helpful reminders to make maintenance easier[2]
  • Works with the Nest Temperature Sensor (sold separately) to help make sure a certain room is the exact temperature you want it to be
6
Google Nest Learning Thermostat - 3rd Gen (2015) - Programmable Smart Thermostat for Home - Works with Alexa - White

Rating is 4.5 out of 5

Google Nest Learning Thermostat - 3rd Gen (2015) - Programmable Smart Thermostat for Home - Works with Alexa - White

  • Programmable smart thermostat that learns your schedule and the temperatures you like and programs itself to help you save energy and stay comfortable
  • Home/Away Assist automatically adjusts itself to an Eco Temperature after you leave, so you don’t heat or cool an empty home; remote control lets you change the temperature from anywhere on your phone, laptop, or tablet[1]
  • With Energy History, just check your phone to see how much energy you used and why, or use Quick View on the display to reach Energy History, settings, or your schedule; the Nest Leaf appears when you choose a temperature that saves energy
  • Smart thermostat with HVAC monitoring, which looks out for your heating and cooling systems; sends an alert if something doesn’t seem right, along with helpful reminders to make maintenance easier[2]
  • The Nest Learning Thermostat works with the Nest Temperature Sensor (sold separately) to help make sure a certain room is the exact temperature you want it to be
  • Beautifully designed, with polished metal finishes and bright, high resolution display; Farsight shows you the temperature, weather, or time on your thermostat when you walk in the room
7
Honeywell Home RTH9585WF1004 Wi-Fi Smart Color Thermostat, 7 Day Programmable, Touch Screen, Energy Star, Alexa Ready, Gray

Rating is 4.4 out of 5

Honeywell Home RTH9585WF1004 Wi-Fi Smart Color Thermostat, 7 Day Programmable, Touch Screen, Energy Star, Alexa Ready, Gray

  • Compatible with: Alexa, SmartThings, Google Home, IFTTT.Central Air Conditioning : Yes. Heat Pump with Auxiliary heat. Yes..WiFi Specifications : 802.11b, 802.11g, 802.11n, 2.4GHz range.
  • Check to see If your new thermostat qualifies for a utility rebate; Auto-updates for daylight savings; adjusts for 12/24-hour and multi-language needs
  • Customizable touchscreen in full Color with easy to read numbers and text, view your local weather including indoor and outdoor relative humidity levels
8
Honeywell Home RTH8800WF2022, T5 WiFi Smart Thermostat, 7 Day-Programmable Touchscreen, Alexa Ready, Geofencing Technology, Energy Star, C-Wire Required

Rating is 4.3 out of 5

Honeywell Home RTH8800WF2022, T5 WiFi Smart Thermostat, 7 Day-Programmable Touchscreen, Alexa Ready, Geofencing Technology, Energy Star, C-Wire Required

  • High use of the scheduling feature of the T5 thermostat saved customers between 8 and 16% on heating and cooling bills. Dollar savings range based on nationwide average annual single-family detached home's heat and cooling bills; actual savings varies based on consumption.
  • Save Energy and Get Rewarded. Check with your energy provider about available energy savings rebates to save on your purchase. Plus, eligible customers can enroll in their local Utility's "DEMAND RESPONSE PROGRAM" which can reward you for allowing the utility to slightly adjust your AC or furnace temperature settings when there is high energy demand.
  • 7-Day Flexible Scheduling or Location Based Temperature Control. It’s your choice. 7-day scheduling programs your thermostat. Geofence technology helps make you comfortable by using your smartphone’s location to know when you’re away and when you return.
  • Auto Home and Away Mode. Enjoy ideal temperatures at home, then save when away.
  • ENERGY STAR certified. Help save energy, track your heating and cooling with monthly energy reports and get personalized tips on reducing energy use.


How do smart thermostats measure humidity?

Smart thermostats measure humidity using built-in sensors known as hygrometers. These sensors detect the amount of moisture in the air by measuring changes in electrical resistance or capacitance. Here are the two common types of sensors used:

  1. Capacitive sensors: These use a hygroscopic dielectric material placed between two conductive plates. The material absorbs moisture from the air, causing a change in capacitance. The sensor measures this change to determine the relative humidity level.
  2. Resistive sensors: These sensors work by using a polymer or metal oxide film whose electrical resistance changes with humidity. As the film absorbs moisture, its resistance decreases, allowing the sensor to calculate the humidity level based on the resistance change.


By integrating these sensors, smart thermostats can provide accurate real-time humidity readings, allowing users to adjust their HVAC systems to maintain optimal comfort and efficiency. Additionally, this data can be used to track trends, create automation routines, and alert users to potential issues like excess humidity or dryness, which can affect both health and home infrastructure.


How to control a smart thermostat remotely?

Controlling a smart thermostat remotely is typically straightforward and involves using an app or web platform provided by the thermostat manufacturer. Here's a general guide on how to do this:

  1. Install the Smart Thermostat App: Download and install the app associated with your smart thermostat brand (e.g., Nest, Ecobee, Honeywell) on your smartphone or tablet. Specific apps are available on the iOS App Store and Google Play Store.
  2. Create an Account: Open the app and create an account if you don't already have one. You may need to provide an email address, password, and possibly other information.
  3. Connect the Thermostat to Wi-Fi: Ensure your smart thermostat is connected to your home Wi-Fi network. This is done during the setup process of the thermostat. Consult the thermostat's manual for specific instructions on connecting to Wi-Fi.
  4. Add the Thermostat to the App: Log into the app with your account credentials. Follow the on-screen instructions to add your thermostat to the app. This usually involves entering a setup code displayed on the thermostat.
  5. Remote Control Features: Once set up, you can use the app to adjust the temperature, set schedules, and access additional features like energy usage reports. You can control the thermostat from anywhere as long as you have an internet connection.
  6. Integrate with Smart Home Systems (optional): If your thermostat is compatible, integrate it with smart home systems like Amazon Alexa, Google Assistant, or Apple HomeKit. This allows you to use voice commands and other smart home automations.
  7. Web Access: Some manufacturers offer a web platform that allows you to control the thermostat from a computer. Log into the manufacturer's website using your credentials and manage the thermostat from there.


By following these steps, you should be able to control your smart thermostat remotely with ease. Always consult the user manual and the manufacturer's support resources for guidance specific to your model.


What are the best practices for maintaining a smart thermostat?

Maintaining a smart thermostat properly can help enhance its efficiency, extend its lifespan, and ensure it functions optimally. Here are some best practices for maintaining a smart thermostat:

  1. Read the Manual: Start by thoroughly reading the manufacturer's manual. Understanding the specific features and requirements of your smart thermostat model is crucial.
  2. Regular Software Updates: Ensure the thermostat's software is up-to-date. Manufacturers often release updates that can provide new features, improve performance, and fix bugs.
  3. Optimal Location: Verify that the thermostat is placed in an optimal location. It should be away from direct sunlight, drafts, windows, doors, and heating or cooling vents to ensure accurate temperature readings.
  4. Wi-Fi Connectivity: Keep the device connected to your Wi-Fi network to take advantage of remote access features and updates. Ensure that your network is secure to protect the thermostat from unauthorized access.
  5. Schedule Programming: Regularly review and update the thermostat's schedule based on the season and your routine changes. Make sure it aligns with your daily activities for maximum efficiency.
  6. Monitor Settings: Check that your settings and preferences are correct, especially after power outages or internet disconnections.
  7. System Compatibility: Ensure compatibility between your smart thermostat and HVAC system. Mismatched systems can affect performance.
  8. Clean the Device: Dust and clean the thermostat regularly to prevent dirt from affecting its sensors and screen. Use a soft, dry cloth to clean the exterior and screen.
  9. Sensor Calibration: Occasionally check and calibrate temperature sensors to ensure they are providing accurate readings.
  10. Review Energy Reports: Many smart thermostats offer energy usage reports. Review these to identify ways to optimize your home's energy consumption.
  11. Battery Replacement: If your thermostat uses batteries, ensure they are replaced as needed. Low batteries can impact performance or cause the device to reset.
  12. Consult Professional Checks: Consider having routine checks by a professional HVAC technician to ensure that both the thermostat and your HVAC system are functioning correctly.
  13. Take Advantage of Smart Features: Utilize geofencing, learning algorithms, and integration with other smart home devices to maximize the thermostat’s capabilities.


By following these practices, you can ensure that your smart thermostat operates efficiently and continues to provide comfortable and cost-effective temperature management in your home.


What are ecological and sustainable benefits of smart thermostats?

Smart thermostats offer several ecological and sustainable benefits that contribute to more efficient energy use and reduced environmental impact:

  1. Energy Efficiency: Smart thermostats optimize heating and cooling schedules based on occupants' habits and preferences, reducing energy consumption by only using energy when necessary. This can significantly lower the carbon footprint of a home or building.
  2. Reduced Greenhouse Gas Emissions: By decreasing energy usage, smart thermostats help reduce the overall demand on power plants, many of which rely on fossil fuels. This leads to fewer greenhouse gas emissions contributing to climate change.
  3. Integration with Renewable Energy: Many smart thermostats can be integrated with renewable energy sources like solar panels. They can be programmed to maximize the use of clean energy, further reducing reliance on non-renewable sources.
  4. Demand Response Programs: Some utilities offer demand response programs that use smart thermostats to reduce energy usage during peak demand times. This helps prevent blackouts and decreases the overall strain on the grid, promoting more sustainable energy distribution.
  5. Remote Management: The ability to control settings remotely via smartphones or other devices ensures that energy is not wasted when people forget to adjust their thermostats manually before leaving a building.
  6. Data and Insights: Smart thermostats provide detailed usage data and insights, helping users understand their energy consumption patterns and make informed decisions to further reduce energy use and improve sustainability.
  7. Extended HVAC System Life: By operating more efficiently, smart thermostats can reduce wear and tear on heating and cooling systems, extending their lifespan and reducing the waste associated with manufacturing, transporting, and installing new systems.
  8. Support for Smart Homes: As part of a smart home ecosystem, these thermostats can work in concert with other devices to optimize overall home energy efficiency, such as adjusting lighting and appliance usage to coincide with heating and cooling needs.
  9. Behavioral Changes: By making energy consumption visible and understandable, smart thermostats can encourage more environmentally-conscious behavior from users, fostering a culture of sustainability.


Overall, smart thermostats help create more sustainable living environments by boosting energy efficiency, integrating with renewable energy solutions, and promoting eco-friendly consumer habits.


What is the significance of automatic temperature adjustment features?

Automatic temperature adjustment features play a significant role in various systems and devices by providing several key benefits:

  1. Energy Efficiency: By automatically adjusting the temperature based on the ambient conditions, time of day, or occupancy, these features help to optimize energy use. This can lead to significant cost savings on heating and cooling bills and reduce the overall energy footprint.
  2. Comfort: Automatically maintaining optimal temperature levels ensures a consistently comfortable environment. This is particularly important in homes, offices, and vehicles, where changing external conditions can impact comfort levels.
  3. Convenience: Users don’t need to manually adjust settings frequently, as the system automatically adapts to their preferences and routines. This is especially beneficial in busy households or in commercial buildings where managing temperature for different zones can be complex.
  4. System Longevity: By ensuring that heating and cooling systems are not overused or subjected to constant manual changes, automatic adjustments can help extend the lifespan of equipment by reducing wear and tear.
  5. Smart Integration: These features are often part of smart home ecosystems where they can be integrated with other devices and controlled remotely, offering users enhanced control and flexibility through apps and voice assistants.
  6. Health and Safety: Maintaining an appropriate indoor temperature can help prevent issues related to temperature extremes, such as mold growth in overly humid conditions or freezing pipes in cold environments.


Overall, automatic temperature adjustment features enhance the efficiency, comfort, convenience, and sustainability of temperature-controlled environments.


How do smart thermostats contribute to home safety?

Smart thermostats can contribute to home safety in several ways:

  1. Temperature Regulation: Smart thermostats help maintain consistent and appropriate indoor temperatures, which is crucial during extreme weather conditions. This minimizes the risk of pipes freezing in the winter and overheating during the summer, thus preventing potential water damage or other temperature-related issues.
  2. Remote Monitoring and Control: With smart thermostats, homeowners can monitor and adjust the temperature settings remotely using a smartphone or computer. This feature is especially useful when people are away from home, allowing them to ensure that appliances like heating systems are functioning properly and safely.
  3. Alerts and Notifications: Many smart thermostats come with features that send alerts and notifications if the temperature in your home goes above or below certain thresholds. This can be important for identifying system malfunctions early and preventing further issues.
  4. Integration with Smart Home Systems: Smart thermostats often integrate with other smart home devices, such as smoke detectors and security systems. This integration can streamline responses during emergencies, like adjusting heating and cooling in the event of a fire alert.
  5. Energy Management: By optimizing energy usage and providing detailed reports, smart thermostats help homeowners identify unusual spikes in energy consumption. These spikes can sometimes indicate faulty appliances or systems that might pose a safety risk if not addressed.
  6. Learning Capabilities: Many smart thermostats have learning algorithms that adapt to a household’s routine. By automatically setting temperatures based on occupancy and preferences, they can help ensure that heating and cooling systems are used safely and efficiently.
  7. Preventing Overuse of Equipment: By managing heating and cooling systems efficiently, smart thermostats can also prolong the life of HVAC equipment, reducing the chance of breakdowns or malfunctions that could pose safety risks.


These benefits collectively help enhance the safety, comfort, and efficiency of a home environment.

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