10 Best Room Thermostat 2025 in the United States

The Google Nest Thermostat is a programmable, smart thermostat designed to help you save energy and maintain comfort in your home. It's ENERGY STAR certified, which means it meets energy efficiency criteria. It connects via Wi-Fi and Bluetooth, and you can control it remotely using the Google Home app on your smartphone or through voice commands with Google Assistant and other Matter-certified voice assistants. This makes it very convenient to adjust the temperature from anywhere, whether you're at home or away.

The thermostat also features HVAC monitoring, alerting you to any potential issues with your heating and cooling systems and providing reminders for maintenance, which can help extend the life of your HVAC system and prevent costly repairs. One of its key features is the ability to create an energy-efficient schedule and automatically adjusting when you're not home to save on energy costs. Additionally, the Savings Finder feature provides recommendations to further optimize your energy usage.

It's important to note that while the Nest Thermostat is designed to work without a C wire in most homes, certain systems may still require one, which might necessitate additional installation steps or accessories. The user interface is modern and sleek but can be slightly complex for those not accustomed to smart devices. The product includes mounting screws, a steel plate, and documentation for installation, and it runs on two included AA batteries. Weighing just 5 ounces, it's lightweight and features a backlit LCD display for easy reading. The thermostat's design is visually appealing, with its charcoal color blending easily into most home decors. The one-year warranty offers some peace of mind but keep in mind that extended support may be needed for long-term use.

The Honeywell Home RTH9600WF Smart Color Thermostat is a versatile and energy-efficient choice for controlling your home's temperature. One of its standout features is its ENERGY STAR certification, which ensures that it helps save energy and provides personalized tips on reducing energy use. This can be particularly beneficial for users looking to reduce their utility bills and those eligible for energy savings rebates from their providers.

The thermostat's compatibility with Amazon Alexa, Google Assistant, Microsoft Cortana, and other smart home systems allows for convenient control from anywhere using the app or voice commands, which is great for tech enthusiasts who appreciate smart home integration. Additionally, the customizable color touchscreen display is a nice touch, allowing users to match the thermostat to their home decor while providing on-screen comfort information such as indoor and outdoor temperatures, humidity, and daily weather forecasts.

In terms of compatibility, the thermostat works with a variety of heating and cooling systems including forced air, hot water, steam, and heat pumps with electric backup. However, it's important to note that it is not compatible with electric baseboard heating systems and requires a C-wire for installation, which might be a drawback for some users. Installation could be a bit challenging for those without a C-wire, and additional professional help might be required. The fan control options provide flexibility in maintaining air circulation in your home. Users who prioritize energy savings and smart home capability will benefit the most from this product. However, those with non-compatible heating systems or without a C-wire should consider these limitations before making a purchase.

The ecobee Smart Thermostat Enhanced is a programmable Wi-Fi thermostat designed to be a smart home addition. It is compatible with Siri, Alexa, and Google Assistant, making it highly versatile for various smart home setups. One of its standout features is the potential to save up to 26% per year on heating and cooling costs, thanks to its ENERGY STAR certification and ability to automatically adjust the temperature based on occupancy and humidity levels. This ensures that your home is always at the perfect temperature when you arrive and prevents unnecessary heating or cooling when no one is home.

The user interface is intuitive, and you can control the thermostat using the ecobee app on your smartphone, tablet, or Apple Watch. Installation is relatively straightforward, usually taking about 45 minutes. The package includes all necessary components, even a Power Extender Kit for homes without a C-wire, which simplifies the process. One of the notable aspects of this thermostat is its durability, as it's designed to last over a decade and is hardwired to avoid battery replacements. However, it does require 1 Lithium-Ion battery, which is included.

A SmartSensor (sold separately) can be added for even more precise temperature control in specific rooms. The reliance on Wi-Fi means that a stable internet connection is essential for optimal performance. Additionally, while it is compatible with many HVAC systems, it's always a good idea to check compatibility with your specific setup.