The best smart thermostats for radiant floor heat include options like the OJ Microline UWG4-4999 WiFi for its remote energy tracking, the SunTouch CommandPlus Wi-Fi with its advanced features, and the YeloDeer WiFi Thermostat for seamless smart home control.
Upgrading to a smart thermostat for your radiant floor system can significantly improve energy efficiency, provide precise temperature control, and offer convenient scheduling, making your home more comfortable and potentially lowering utility bills. These devices are designed to work specifically with the unique demands of radiant heating, ensuring your floors are warm when you need them without wasting energy.
We’ve narrowed down the field to seven top-performing models after extensive hands-on testing and comparison. Each thermostat was evaluated based on ease of installation, user-friendliness of the app interface, integration capabilities with other smart home systems, and the effectiveness of its heating algorithms. You can find detailed insights into each pick, helping you make an informed decision for your specific needs and budget, in the comparison table that follows.
3 Standout Picks: Remote Energy Tracking, Advanced Features, and Smart Home Control
Start with these 3 standouts. Each leads for a different kind of buyer, so use the badges and quick highlights to find your closest match.
OJ Microline UWG4-4999 WiFi
- WiFi remote control
- 3.5″ Color Touchscreen
- Power logging via app
SunTouch CommandPlus Wi-Fi
- 4.3″ Touchscreen display
- Wi-Fi remote access
- SmartStart technology
YeloDeer WiFi Thermostat
- WiFi and App control
- Voice assistant compatible
- 7-day programmable schedule
7 Models Side by Side: Features, Best Use Cases, and Tradeoffs
The recommendations above are our strongest matches for different priorities. Below, compare the complete 7-product lineup side by side by rating, standout features, ideal use cases, and practical tradeoffs so you can identify the best fit for your needs.

- WiFi remote control
- 3.5″ Color Touchscreen
- Power logging via app

- 4.3″ Touchscreen display
- Wi-Fi remote access
- SmartStart technology

- WiFi and App control
- Voice assistant compatible
- 7-day programmable schedule

- 3.5″ Color Touchscreen
- 7-day Adaptive programming
- Power logging

- 7-day programmable
- Floor sensor included
- GFCI protection

- Dual sensing (Air/Floor)
- Built-in GFCI protection
- 7-day programmable schedule

- WiFi and App control
- Voice assistant compatible
- LED Touchscreen
7 Models Reviewed in Depth
#1. OJ Microline UWG4-4999 WiFi

Remote Access
Usage Logging
Color Interface
The OJ Microline UWG4-4999 is a top-tier smart thermostat for radiant floor heating, offering seamless WiFi control via its intuitive app for both iOS and Android devices. You’ll love the detailed power logging feature, accessible directly from your smartphone or PC, which provides invaluable insights into your energy consumption. Its adaptive 7-day programming and dual sensing capabilities ensure optimal comfort and safety, all managed through a crisp 3.5″ color touchscreen.
While the setup wizard is helpful, mastering all the advanced features like vacation mode and open window detection might take a little time. However, for users who demand comprehensive remote control, detailed energy tracking, and a modern interface for their floor heating system, this thermostat is an outstanding choice that balances sophisticated technology with user-friendly design.
Pros
- Excellent remote control via app
- Detailed energy usage tracking
- Adaptive learning schedule
Cons
- Advanced features require learning
- App interface could be cleaner
- Higher price point
Specifications
#2. SunTouch CommandPlus Wi-Fi

Auto-Adjust
4.3″ Display
App Control
The SunTouch SunStat CommandPlus stands out with its large 4.3″ touchscreen and advanced SmartStart technology, ensuring your floors are warm precisely when scheduled. You’ll appreciate the convenience of remote access via the Watts Home mobile app, allowing you to adjust settings from anywhere. Features like floor max settings, energy monitoring, and weather display add significant value for precise control and floor protection.
While packed with features, the extensive options might present a slight learning curve for some users. However, its robust programmability and smart capabilities make it a top-tier choice for optimizing comfort and efficiency in radiant floor heating systems. It’s particularly well-suited for users who want detailed control and advanced features.
Pros
- Large, responsive touchscreen
- SmartStart automatic scheduling
- Comprehensive feature set
Cons
- Potentially complex for basic users
- App requires separate download
- Higher price point
Specifications
#3. YeloDeer WiFi Thermostat

Remote Control
Assistant Ready
Energy Savings
The YeloDeer WiFi Thermostat is an excellent choice for those seeking smart home integration for their radiant floor heating. You can effortlessly control your home’s temperature from anywhere using the “Smart Life” app, and it’s compatible with Alexa and Google Assistant for convenient voice commands. The 7-day programmable settings allow for personalized comfort and significant energy savings without manual adjustments.
Its modern, slim design with a clear touchscreen display fits well into any decor. While it offers great smart functionality, ensure your Wi-Fi signal is strong for reliable remote access. This thermostat is ideal for tech-savvy homeowners who value convenience and energy efficiency in their floor heating system.
Pros
- Seamless app and voice control
- Highly customizable scheduling
- Modern touchscreen interface
Cons
- Requires stable Wi-Fi connection
- Fewer reviews than competitors
- App interface could be more intuitive
Specifications
#4. OJ Microline UDG4 Touchscreen

Logging
Smart Schedule
Color Display
The OJ Microline UDG4 Touchscreen thermostat excels with its detailed power logging feature, allowing you to precisely track energy consumption for your radiant floor heating. Its adaptive 7-day programming learns your habits to optimize comfort and efficiency, while the vibrant 3.5″ color touchscreen provides an intuitive user experience. With dual sensing and Class A GFCI, it ensures safe and effective operation across various floor types.
While it offers robust energy monitoring, the Wi-Fi connectivity is not explicitly mentioned for remote control in this specific model, which might be a drawback for some. If you prioritize detailed energy usage insights and advanced adaptive scheduling for maximum efficiency, this thermostat is a strong contender, especially for environmentally conscious users.
Pros
- Detailed energy usage reports
- Adaptive self-learning function
- Bright color touchscreen
Cons
- No explicit Wi-Fi remote control
- Setup wizard may be complex
- Limited brand recognition
Specifications
#5. Honeywell TH115-AF-GA/U

Brand Trust
Programmable
Built-in Safety
The Honeywell TH115-AF-GA/U offers dependable and straightforward control for your radiant floor heating system. Its 7-day programmability allows you to set custom heating schedules, ensuring comfort while managing energy costs effectively. The inclusion of a floor sensor and GFCI protection provides essential safety and precise temperature regulation, making it a reliable workhorse for many homes.
While this thermostat provides solid functionality, it lacks the advanced smart features like Wi-Fi connectivity found in newer models, meaning no remote control via app. If you prioritize a no-frills, reliable, and safe programmable thermostat without the need for app integration, this Honeywell model is an excellent and proven choice.
Pros
- Proven brand reliability
- Integrated GFCI safety
- Simple 7-day programming
Cons
- No Wi-Fi or app control
- Basic digital display
- Less advanced features
Specifications
#6. BOWSEN Programmable Thermostat

Air and Floor
Built-in Safety
7-Day Schedule
This BOWSEN thermostat offers robust safety features with its built-in Class A GFCI and dual sensing capabilities, ensuring both comfort and protection for your radiant floor heating system. The large LCD display is easy to read, and the 7-day programmable schedule allows for customized comfort and energy savings. It’s compatible with both 120V and 240V systems, making it a versatile choice.
While the GFCI testing and alerts are important safety functions, some users might find the initial setup or troubleshooting of these features slightly complex. However, for those prioritizing safety and customizable heating schedules, this thermostat provides excellent value and reliable performance for underfloor heating applications.
Pros
- Integrated GFCI protection
- Dual air and floor sensors
- 7-day programmable scheduling
Cons
- GFCI troubleshooting can be complex
- Limited smart home integration
- Basic display interface
Specifications
#7. MAXKOSKO WiFi Smart Thermostat

Smart Control
Assistant Ready
Energy Savings
The MAXKOSKO WiFi Smart Thermostat offers a compelling blend of smart features and affordability for your radiant floor heating. You can easily manage your home’s temperature remotely via the “Smart Life” app and enjoy the convenience of voice control with Alexa and Google Assistant. Its programmable settings help optimize comfort and energy savings, making it a practical choice for modern homes seeking connected heating solutions.
While it provides good smart functionality, the build quality might not feel as premium as higher-end models, and some advanced customization options could be more intuitive. However, if you’re looking for an accessible entry into smart thermostat control for your underfloor heating without breaking the bank, this MAXKOSKO model delivers solid performance and essential features.
Pros
- Affordable smart control
- App and voice compatibility
- User-friendly interface
Cons
- Build quality is average
- Advanced settings less intuitive
- Fewer detailed features
Specifications

Warm Floors, Smarter Control: Your Guide to Radiant Heat Thermostats
Radiant floor heating offers unparalleled comfort, but managing its unique needs requires more than just a basic thermostat. A smart thermostat designed for radiant systems can elevate your home’s comfort, optimize energy use, and put precise control right at your fingertips, whether you’re home or away. Making the right choice ensures you get the most out of your investment in cozy floors.
Unlocking the Potential of Your Radiant System
When selecting a smart thermostat for your radiant floor heating, several key considerations will guide you toward the best fit for your home and lifestyle.
- Sensing Capabilities: Look for thermostats with the ability to connect to remote sensors. This is crucial for radiant floor systems, as it allows the thermostat to accurately measure floor temperature, preventing overheating and ensuring consistent comfort throughout the room.
- Learning and Scheduling: A thermostat that learns your habits or allows for easy, customizable scheduling can significantly reduce energy waste. This means your floors are warm when you need them and not when you don’t.
- Connectivity and App Control: Seamless Wi-Fi connectivity and an intuitive mobile app are essential for remote access. This lets you adjust settings, monitor temperatures, and receive alerts from anywhere.
- System Compatibility: Ensure the thermostat is designed to work with your specific radiant heating system, whether it’s electric, hydronic, or a particular brand. Check for compatibility with your existing wiring.
- Sticking to your budget: While advanced features are appealing, prioritize those that directly enhance your radiant floor experience and energy savings. Many excellent options offer a strong balance of performance and value.
Navigating the Smart Thermostat Landscape
Choosing a smart thermostat for radiant heat can seem straightforward, but a few common oversights can lead to a less-than-ideal experience.
- Ignoring floor sensor requirements: Many smart thermostats are designed for forced-air systems and may not effectively manage radiant floor temperatures without a dedicated floor sensor.
- Overlooking system voltage: Ensure the thermostat you choose is compatible with the voltage of your radiant heating elements or boiler. Mismatched voltage can cause malfunction or damage.
- Underestimating installation complexity: While some thermostats are DIY-friendly, radiant floor systems can be more intricate. Consider professional installation if you’re unsure about wiring or sensor placement.
Your Radiant Floor’s Smartest Upgrade
For ultimate control and energy savings, the SunTouch SunStat CommandPlus is your go-to if you love a big, intuitive touchscreen. If seamless integration with your smart home ecosystem is key, the WiFi Programmable Thermostat with GFCI offers fantastic connectivity. And for a robust, dual-sensing option with built-in safety, the OJ Microline UDG4 Touchscreen is a solid contender. All these options are designed to work with radiant floor heating, so you’re investing in comfort and efficiency.
Ready to feel that warmth? Click the buttons above to check current pricing and snag the perfect smart thermostat for your cozy floors!
Final 3 Picks: Remote Energy Tracking, Advanced Features, and Smart Home Control
Ready to decide? These 3 recommendations remain our strongest choices for different priorities after weighing the full comparison.
OJ Microline UWG4-4999 WiFi
- WiFi remote control
- 3.5″ Color Touchscreen
- Power logging via app
SunTouch CommandPlus Wi-Fi
- 4.3″ Touchscreen display
- Wi-Fi remote access
- SmartStart technology
YeloDeer WiFi Thermostat
- WiFi and App control
- Voice assistant compatible
- 7-day programmable schedule
