Smart thermostats for radiant floor heating can make electric in-floor heat easier to control, more efficient to run, and far more comfortable day to day.
From Wi-Fi scheduling to floor sensors and built-in GFCI protection, the best options balance convenience with the safety and voltage requirements your system needs.
Best 10 Smart Thermostats for Radiant Floor Heating Picks for 2026
Smart Home Floor Control
Schluter Ditra-Heat-E-WiFi Programmable Thermostat
- Supports 120V and 240V heating cables
- Built-in Class A GFCI safety protection
- App-based energy tracking and smart home control
Best For: Wi-Fi floor heating control with safety-minded features
Touchscreen Comfort Scheduler
SunTouch SunStat ConnectPlus Wi-Fi Thermostat
- 4.3-inch touchscreen with remote app control
- SmartStart and 7-day scheduling features
- Floor and air sensing plus energy monitoring
Best For: Feature-rich remote control for electric floor heating
Reliable Radiant Basic
Honeywell TH115-AF-GA/U Programmable Thermostat
- 7-day programmable radiant floor control
- Includes floor sensor and GFCI
- Ambient, floor, or limit temperature modes
Best For: Straightforward radiant floor control with safety features
Advanced Automation Pick
nVent Nuheat Conductor Smart WiFi Thermostat
- Works with major smart home platforms
- Auto-adaptive scheduling learns heat-up time
- Supports 120V and 240V radiant systems
Best For: Connected radiant floor control with broad home automation support
Best Replacement Choice
SunTouch CommandPLUS Floor Heating Thermostat
- Direct replacement for older SunTouch and Warm Your Floor units
- Wi‑Fi touchscreen with app control and scheduling
- Includes 15 ft floor sensor and built-in GFCI
Best For: Replacing an older compatible floor heating thermostat
Best Feature Set
OJ Microline UWG4-4999 Smart Floor Thermostat
- Dual sensing for air and floor temperature
- Wi‑Fi control with 7-day programming
- Includes floor sensor, GFCI, and power logging
Best For: Users wanting detailed control and energy tracking
Best Voice-Control Option
MAXKOSKO WiFi Smart Floor Thermostat
- Smart Life app control with Alexa and Google Assistant
- Includes 15 ft floor sensor
- Programmable touchscreen design for easy daily use
Best For: Easy smart control with voice assistant support
Touchscreen Programmable Pick
OJ Microline UDG4 Radiant Floor Thermostat
- Touchscreen with 7-day programming
- Dual air and floor sensing
- Built-in Class A GFCI and floor sensor
Best For: A polished electric floor-heating thermostat with safety and scheduling
Smart App-Control Choice
Mysa Electric In-Floor Thermostat
- App control with schedules and geofencing
- HomeKit, Alexa, and Google support
- Built-in Class A GFCI with floor sensor
Best For: Smart-home users who want remote control and automation
Budget Wired Programmed Option
Universal Radiant Floor Thermostat
- 120V/240V support with 15A load
- Dual air and floor sensing
- 7-day program with Class A GFCI
Best For: Shoppers who want a simple wired thermostat with safety features
Smart Home Floor Control – Schluter Ditra-Heat-E-WiFi Programmable Thermostat
If you want smart thermostats for radiant floor heating that blend app control with installation-friendly safety features, the Schluter Ditra-Heat-E-WiFi is a strong fit. It supports both 120V and 240V heating cables, gives you energy tracking in the app, and adds built-in GFCI protection for added peace of mind.
Best For: Homeowners who want a Wi-Fi floor-heating thermostat with voice assistant support and built-in safety protection.
Pros:
- Works with both 120V and 240V heating cables
- Includes built-in Class A GFCI for safety
- Offers app-based energy tracking and smart home integration
- 3.5-inch color touchscreen makes control simple
Cons:
- Additional power module may be needed for larger systems
- Requires proper installation per the handbook and technical data sheet
This is a practical choice if you want a modern thermostat that focuses on control, safety, and system compatibility. It is especially appealing for radiant floor setups where monitoring usage and maintaining electrical protection matter.
Touchscreen Comfort Scheduler – SunTouch SunStat ConnectPlus Wi-Fi Thermostat
For smart thermostats for radiant floor heating that emphasize scheduling and remote access, the SunTouch SunStat ConnectPlus is built around convenience. It pairs a 4.3-inch touchscreen with floor and air sensing, SmartStart scheduling, and app control so you can manage heating from anywhere.
Best For: Users who want a feature-rich Wi-Fi thermostat with touchscreen control and remote scheduling.
Pros:
- Remote access through the Watts Home mobile app
- SmartStart helps the floor reach temperature on time
- Supports floor and air sensing control
- Includes 7-day scheduling, away mode, and energy monitoring
Cons:
- Designed for electric floor heating systems, so compatibility is more specific
- Uses mains power rather than batteries
This thermostat stands out if you want a polished touchscreen and a broad set of comfort features. The combination of voice compatibility, weather display options, and remote app control makes it easy to fine-tune radiant heat day to day.
Reliable Radiant Basic – Honeywell TH115-AF-GA/U Programmable Thermostat
Honeywell TH115-AF-GA/U Radiant Heating 120/240V Programmable Thermostat with Floor Sensor and GFCI
Check Price On AmazonIf you are shopping smart thermostats for radiant floor heating but prefer a straightforward programmable option, the Honeywell TH115-AF-GA/U keeps the focus on core function. It supports radiant floor applications, includes a floor sensor and GFCI, and offers three temperature control modes for more precise setup.
Best For: Buyers who want a simple programmable radiant floor thermostat with built-in safety and sensor support.
Pros:
- 7-day programmable control for routine scheduling
- Includes floor sensor and GFCI
- Offers ambient, floor, or ambient-with-limit temperature control
- CSA and UL listed
Cons:
- No smart home connectivity is listed in the supplied details
- Smaller 1.5-inch display than many modern smart thermostats
This is a practical pick for users who value reliability and simple programming over app-based extras. It is especially useful when you want a line-voltage radiant heating thermostat with safety features built in.
Advanced Automation Pick – nVent Nuheat Conductor Smart WiFi Thermostat
Among smart thermostats for radiant floor heating, the nVent Nuheat Conductor focuses on automation and broad smart home support. It works with 120V and 240V systems, uses Wi-Fi and Bluetooth connectivity, and adds auto-adaptive scheduling to help the floor reach temperature at the right time.
Best For: Smart home users who want a connected radiant floor thermostat with adaptive scheduling and multiple platform support.
Pros:
- Remote control through the Nuheat mobile app
- Compatible with Alexa, Apple HomeKit, Google Assistant, and IFTTT
- Auto-adaptive scheduling learns heat-up timing
- Pre-configured settings for several flooring types
Cons:
- Uses a touchscreen and app workflow, which may be more than basic users need
- Only the supplied details confirm 120V for voltage, so sizing should be checked carefully for your setup
This thermostat is the most automation-forward option in the group and should appeal to users who want deeper smart home integration. The flooring presets and responsive interface also make it easier to manage a radiant system safely and consistently.
Best Replacement Choice – SunTouch CommandPLUS Floor Heating Thermostat
If you want smart thermostats for radiant floor heating with straightforward replacement compatibility, the SunTouch CommandPLUS is built for that job. It works as a direct replacement for older SunTouch and Warm Your Floor thermostats, and it also supports many popular electric floor systems. The included 15 ft floor sensor, Wi‑Fi control, and touchscreen interface make it a practical upgrade for single-zone electric radiant floors.
Best For: homeowners replacing an older SunTouch or compatible electric floor heat thermostat who want app control and broad system support.
Pros:
- Direct replacement for older SunTouch and Warm Your Floor models
- Works with many electric systems, including Nuheat, Warmup, QuietWarmth, WarmlyYours, and Thermosoft
- Includes 15 ft floor sensor and built-in GFCI for safety
- Supports app control, scheduling, and multiple display options
Cons:
- Controls only a single zone of electric floor heat
- Available only in the listed black-front/white-side color combination
- Maximum output is limited to 1800W at 120V or 3600W at 240V
This is a strong fit if compatibility and replacement convenience matter more than extra-zone control. Its mix of Wi‑Fi access, floor sensing, and flexible control modes gives you several ways to fine-tune comfort for radiant floors.
Best Feature Set – OJ Microline UWG4-4999 Smart Floor Thermostat
For smart thermostats for radiant floor heating that prioritize control and detail, the OJ Microline UWG4-4999 stands out. It supports Wi‑Fi remote access, dual sensing for air and floor temperature, and a programmable 7-day schedule. The touchscreen interface, adaptive function, and power logging make it a useful pick for users who want more insight into how their heated floor system is running.
Best For: buyers who want a feature-rich thermostat with dual sensing, energy tracking, and remote control.
Pros:
- Dual sensing for both air and floor temperature
- Wi‑Fi remote monitoring and control from smartphone or tablet
- 7-day programming plus adaptive self-learning function
- Includes floor sensor, GFCI, and power logging
Cons:
- Designed for electric radiant floor systems only
- Interface and feature set may be more than some simple installs need
- White finish may not match every decor choice
This model is a strong all-around option if you want more than basic temperature control. The combination of floor limiting, scheduling, and usage reporting makes it especially appealing for energy-conscious radiant floor setups.
Best Voice-Control Option – MAXKOSKO WiFi Smart Floor Thermostat
The MAXKOSKO WiFi Smart Thermostat is a practical option for smart thermostats for radiant floor heating when you want app control without a complicated setup. It works with most underfloor heating systems, includes a 15 ft floor sensor, and supports Smart Life app control along with Alexa and Google Assistant. The touchscreen LED display and programmable settings make it easy to manage comfort and energy use day to day.
Best For: shoppers who want an easy-to-use Wi‑Fi floor thermostat with voice assistant support.
Pros:
- Works with most underfloor heating systems
- Supports Smart Life app control plus Alexa and Google Assistant
- Includes a 15 ft floor sensor for reliable floor-based control
- Programmable settings help reduce manual adjustments
Cons:
- Single-color white design only
- Feature set is simpler than some higher-end radiant floor thermostats
- Best suited to electric floor warming systems rather than broader HVAC use
If you want a simple smart upgrade for electric floor warming, this MAXKOSKO model keeps the essentials in focus. Its app and voice support are the big draw, especially for homeowners who want everyday convenience more than advanced system analytics.
Touchscreen Programmable Pick – OJ Microline UDG4 Radiant Floor Thermostat
If you want a smart thermostats for radiant floor heating option with a polished interface and built-in safety features, the OJ Microline UDG4 is a strong fit for electric systems. It supports 120V/240V operation, dual sensing for air and floor temperatures, and a 7-day program designed to balance comfort with lower operating costs.
Best For: Homeowners who want a touchscreen radiant floor thermostat with programming, floor sensing, and GFCI protection.
Pros:
- Touchscreen interface with a 3.5-inch color display and Install Wizard
- Dual sensing for air and floor control, plus included floor sensor
- Built-in Class A GFCI and wet-room certification for added safety
- Adaptive function, child lock, vacation mode, and open-window mode
Cons:
- Made for electric radiant floor heating, not hydronic systems
- More advanced feature set may be more than some simple installs need
The UDG4 stands out if you want a thermostat that feels more like a modern control panel than a basic wall unit. Its programming, safety features, and detailed energy tools make it a practical upgrade for users who want more control over radiant floor heat.
Smart App-Control Choice – Mysa Electric In-Floor Thermostat
For smart thermostats for radiant floor heating, the Mysa is built around app control, automation, and everyday convenience. It works with 120V-240V electric in-floor heating systems and includes a built-in Class A GFCI, plus features like schedules, geofencing, energy reports, and voice control support.
Best For: Users who want remote control, smart home integration, and app-based scheduling for electric in-floor heat.
Pros:
- Works with HomeKit, Alexa, and Google Home
- Free app with schedules, geofencing, lockouts, and energy reports
- Built-in Class A GFCI and included floor sensor
- Step-by-step install guidance and support from certified electricians
Cons:
- Only compatible with electric in-floor heating, not hydronic systems
- Depends on Wi-Fi for smart features and remote access
Mysa is the most app-forward option in this group, especially if you want to adjust floor heat from your phone and tie it into a broader smart home setup. Its strong feature set makes it appealing for users who value automation as much as comfort.
Budget Wired Programmed Option – Universal Radiant Floor Thermostat
This programmable thermostat is a practical pick for smart thermostats for radiant floor heating when you want core control features without extra bells and whistles. It supports 120V/240V electric underfloor heating, includes both air and floor sensing, and adds a built-in Class A GFCI with a large backlit LCD for easy day-to-day use.
Best For: Buyers looking for a straightforward wired radiant floor thermostat with scheduling and built-in safety protection.
Pros:
- Supports 120V/240V systems with 15A load capacity
- Dual sensing with both air and floor sensors
- Built-in Class A GFCI plus GFCI test function
- 7-day programmable schedule and backlit LCD display
Cons:
- Wired, button-based control is less modern than touchscreen or app-first models
- Designed for electric underfloor heating only
This model focuses on essentials: scheduling, safety, and compatibility with common radiant floor setups. It makes sense if you prefer a traditional thermostat layout and want reliable floor-heating control without relying on a mobile app.
How We Picked the Best Smart Thermostats for Radiant Floor Heating
We focused on Smart Thermostats for Radiant Floor Heating that support common 120V and 240V electric systems, include either floor sensing or dual sensing where helpful, and offer practical controls such as app access, scheduling, and touchscreen operation. Safety features like Class A GFCI, compatibility with heated floor mats or cables, and straightforward installation also mattered.
Quick Comparison
In a strong lineup, the main differences usually come down to connectivity, sensing style, and user interface. Some models are better for homeowners who want app-based control and voice integration, while others prioritize simple, reliable floor temperature management. If you already know your voltage and sensor needs, narrowing the field becomes much easier.
Key Buying Factors for Smart Thermostats for Radiant Floor Heating
Voltage and Load Compatibility
Confirm that the thermostat matches your system’s voltage and amperage requirements. Many electric floor heating systems use 120V or 240V, but not every thermostat supports both, and load limits can affect installation planning.
Floor Sensor and Sensing Mode
Floor sensors help prevent overheating and keep surface temperatures consistent. Dual-sensing thermostats can balance air and floor readings, which is useful in rooms where comfort depends on both ambient temperature and floor warmth.
GFCI and Safety Protection
For electric radiant heat, built-in Class A GFCI protection is a major plus. It adds an important layer of electrical safety and may simplify your installation by keeping protection integrated into the thermostat.
Smart Features and Control Style
Think about how you want to use the thermostat every day. Wi-Fi, app control, voice compatibility, and programmable schedules are ideal if you want remote adjustments or automated comfort. A large display and simple menus may matter more if you prefer manual control.
Who Should Buy Which Smart Thermostats for Radiant Floor Heating?
If you want the most convenience, choose a Wi-Fi model with scheduling and app access. If safety and compliance are your top concerns, prioritize a thermostat with Class A GFCI and reliable floor sensing. If you’re replacing an older unit, verify compatibility with your existing sensor and wiring before you buy.
For homeowners with a single bathroom, kitchen, or basement heating zone, a straightforward programmable thermostat is often enough. For larger homes or tech-forward setups, a smarter model with app control and voice support may be the better long-term fit.
