7 Best Dual Fuel Thermostats 2025 in the United States

The Google Nest Learning Thermostat - 3rd Gen is a smart programmable thermostat that stands out in the dual-fuel thermostat category, making it a great choice for homeowners who prioritize energy efficiency and smart features. One of its key strengths is its Auto-Schedule feature, which learns your heating and cooling preferences, reducing the hassle of manual programming. It also boasts a user-friendly interface, featuring a polished steel design that looks modern and sleek in any home.

Energy efficiency is another highlight, as the Nest Leaf helps guide you to set temperatures that save energy. The Auto-Tune feature works behind the scenes to find additional savings, enhancing its appeal for eco-conscious users. Furthermore, it has excellent compatibility with high-efficiency systems, allowing it to adapt its settings for forced air, heat pumps, or radiant systems, ensuring optimal performance.

On the downside, users may find the installation process a bit challenging, especially if they are not familiar with DIY projects or home wiring. While it comes with batteries included, some may prefer a more straightforward wired connection. Additionally, while it is compatible with smart home systems like Alexa and Google Assistant, some users have reported occasional connectivity issues, which may be a drawback for those who rely heavily on voice control.

The Honeywell TH8321WF1001 Touchscreen Thermostat stands out in the dual-fuel thermostat category with its smart features and user-friendly design. Its large touchscreen display allows for easy navigation, making it accessible for all users, even those who may not be tech-savvy. Programmability is a significant strength; you can set a personalized schedule for every day of the week, allowing you to optimize your home’s temperature based on your specific lifestyle and needs. The energy-saving scheduling feature helps reduce utility bills, which is a plus for environmentally-conscious consumers.

The integration with the Total Connect Comfort app for remote control is another excellent feature, giving you the ability to adjust your home’s temperature from anywhere, providing convenience for busy users. The Adaptive Intelligent Recovery feature enhances user comfort by ensuring the home reaches the desired temperature by the scheduled time.

However, there are a few drawbacks worth noting. Installation may pose a challenge for those who are not handy; while many users manage it, some may prefer professional assistance. Additionally, it's essential to ensure compatibility with your existing heating and cooling systems, particularly with dual-fuel setups, as not all systems may be supported. Finally, the requirement for batteries means you'll need to plan for occasional replacements.

The Honeywell TH8321WF1001 is a robust option for anyone looking for a dual-fuel thermostat with great programmability and smart features, but it might require some installation effort and checks for system compatibility.

The Honeywell TH6220WF2006/U Lyric T6 Pro Wi-Fi Programmable Thermostat is designed to meet the needs of users with both heat pump and conventional heating systems. This thermostat stands out for its compatibility with up to 2 stages of heating and cooling, making it a versatile choice for various setups. Its ENERGY STAR certification highlights its energy efficiency, which can lead to savings on utility bills.

One of the key strengths is its programmability. Users can customize their heating schedule with options like 7-day programming, which is great for households with varying schedules. Additionally, the geofencing feature allows the thermostat to adjust settings based on the homeowner's location, providing convenience and comfort.

The large touchscreen display and user-friendly interface make it easy to navigate through settings, while the option to control it via the Lyric app adds a modern touch for tech-savvy users. Integration with smart home systems like Apple HomeKit and Amazon Alexa is a significant plus for those looking to streamline their home automation.

There are a few drawbacks to consider. The installation process, while user-friendly for some, may still pose challenges for those who are not familiar with electrical work, requiring a certain level of DIY skill. Additionally, while the smart features are impressive, not all users may find the need for them, especially if they prefer a straightforward thermostat without advanced connectivity options.

Lastly, it weighs about 14.4 ounces and uses one Lithium-ion battery, which might require occasional replacements. The Honeywell Lyric T6 Pro is a solid choice for users seeking a dual-fuel thermostat that combines energy efficiency with smart technology, though it may be best suited for those who are comfortable with installation and utilizing smart home features.