7 Best Dual Fuel Thermostats 2025 in the United States

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 TH9320WF5003 is a versatile dual-fuel thermostat well suited for users looking for advanced control over their heating and cooling systems. It excels in compatibility, supporting up to 3 heat/2 cool heat pump systems and 2 heat/2 cool conventional systems, making it flexible for various setups. The programmability is a highlight, with options for 7-day programming or manual adjustments, allowing personalized schedules to enhance energy efficiency and potentially lower heating and cooling costs.

Smart features are robust, including remote access via Wi-Fi through the Total Connect Comfort Service, which provides convenience and control from any smartphone, tablet, or computer. Additionally, the thermostat displays indoor and outdoor temperature and humidity, adding to its useful data offerings. The user interface is user-friendly with a high-definition touch screen that can be color-customized to match home decor, and it has a high gloss finish for a sleek look.

Installation is simplified with a redesigned terminal block that requires no tools, though some users might still find professional installation preferable. The extended 5-year warranty adds peace of mind. This product is a solid choice for users seeking a feature-rich, customizable, and smart thermostat solution for their home.

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.