10 Best Radiant Floor Heating Systems With Smart Thermostat for 2026

Radiant floor heat can make a bathroom, kitchen, or entryway feel warmer and more comfortable without relying on noisy forced air. When you add smart thermostat control, you also get better scheduling, temperature precision, and everyday convenience.

This roundup focuses on the best radiant floor heating system with smart thermostat options for 2026, including complete heating kits and compatible controls so you can choose the right setup for your space and voltage needs.

Best 10 Radiant Floor Heating System with Smart Thermostat Picks for 2026

Complete Kit Pick – 50 Sq Ft WiFi Thermostat Bundle

If you want a radiant floor heating system with smart thermostat control for a smaller room, this LuxHeat kit is built to handle the basics well. It pairs a 50 sq ft self-adhesive heating mat with a WiFi programmable thermostat, floor sensor, built-in GFCI, and cable alarm, making it a practical option for tile, laminate, and similar installations.

Best For: Small bathroom or kitchen projects that need a complete electric floor heating kit with app-connected thermostat control.

Pros:

• Includes a 120V 50 sq ft self-adhesive heating mat and matching WiFi thermostat
• Thermostat adds remote control, floor sensor, child lock, power logging, and built-in GFCI
• Mat can be cut, turned, flipped, or rotated for layout flexibility
• Dual wire technology with aluminum shield is designed to reduce EMF to low levels

Cons:

• Heating wires must be embedded in self-leveling underlayment, thinset, or mortar
• Mat size is limited to 50 sq ft, so it is not meant for larger rooms

This is a straightforward all-in-one kit for buyers who want dependable floor warmth plus smart thermostat features without piecing parts together separately. The 25-year limited warranty and UL-listed wet-location safe cables add extra reassurance for long-term use.

Smart Control Upgrade – Smart Voice-Activated Touchscreen

The SunTouch SunStat ConnectPlus is a strong fit if you already have an electric radiant floor heating system and want a smart thermostat with more control options. Its 4.3-inch touchscreen, remote access, SmartStart feature, and floor-and-air sensing make it easy to schedule heat and manage comfort from the Watts Home app.

Best For: Homeowners who want voice control, remote access, and a feature-rich thermostat for electric floor heating.

Pros:

• Works with Alexa and Hey Google voice commands
• SmartStart helps the floor reach temperature by the scheduled time
• Includes floor and air sensing, 7-day scheduling, away mode, and energy monitoring
• Offers app-based remote access plus email alerts and weather display options

Cons:

• Sold as a thermostat only, so it is not a full heating kit
• Designed for electric floor heating systems rather than general-purpose HVAC use

For shoppers focused on smart controls instead of a bundled mat kit, this model brings a polished touchscreen and a long list of convenience features. It is a practical upgrade when you want better scheduling, remote management, and compatibility with modern voice assistants.

Reliable Thermostat Choice – 3.5" Touchscreen with GFCI

The nVent Nuheat Home is a practical thermostat choice for a radiant floor heating system with smart thermostat features when you need simple, dependable control. It supports both 120V and 240V cables, includes a floor sensor and built-in Class A GFCI, and offers a 7-day program with energy usage monitoring.

Best For: Buyers who want a user-friendly touchscreen thermostat for 120V or 240V heated floors.

Pros:

• Compatible with both 120V and 240V floor heating cables
• Includes a floor sensor and built-in Class A GFCI protection
• 7-day programming and energy monitoring support practical daily use
• High-res 3.5-inch color touchscreen with setup wizard and diagnostic tests

Cons:

• Does not include a heating mat or cable system
• Feature set is more basic than some larger smart thermostats

This thermostat is a solid fit for straightforward installations where reliability and easy programming matter more than extra smart-home extras. The physical on/off switch and built-in setup guidance add convenience for installation and everyday operation.

Feature-Rich Wi-Fi Pick – WiFi Touchscreen Thermostat

If you want a radiant floor heating system with smart thermostat features and a more modern interface, the SunTouch CommandPlus is built for convenience. It offers a 4.3-inch touchscreen, floor and air sensing control, remote access through the Watts Home app, and SmartStart scheduling for better comfort timing.

Best For: Users who want a Wi-Fi touchscreen thermostat for electric floor heating with app control and energy tracking.

Pros:

• Wi-Fi enabled with remote app access for iOS and Android
• 4.3-inch capacitive touchscreen with a slim, modern profile
• Includes floor and air sensing, 7-day scheduling, away mode, and energy monitoring
• Supports floor max settings, weather display options, and email alerts

Cons:

• Thermostat only, so it does not include heating mats or cables
• Uses a 240V corded electric setup, which may not fit every installation

This model is a good pick for buyers who want a connected thermostat with a strong feature list and a clean wall-mounted look. It focuses on remote management and comfort automation rather than being part of a full floor heating kit.

Premium Touchscreen Control – OJ Microline UDG4 Touchscreen Programmable Heated Floor Thermostat

If you want a radiant floor heating system with smart thermostat features in a simple wall controller, this OJ Microline model is built around comfort and energy-minded scheduling. It combines a 7-day program, dual sensing, and Wi-Fi connectivity with a touchscreen interface for managing electric radiant floors in compatible finishes like tile, marble, laminate, wood, and more.

Best For: Homeowners who want a touchscreen radiant floor thermostat with dual sensing, Wi-Fi, and built-in safety features.

Pros:

• 7-day programmable control with an install wizard and interactive touchscreen.
• Dual sensing for air and floor temperature, plus included floor sensor.
• Class A GFCI protection and wet-room certification for added safety.
• Adaptive function and power logging to help reduce energy use.

Cons:

• Controls a single radiant zone and is limited to 15 amps.
• Advanced settings may be more than you need for a basic install.

This is a strong choice if you want a polished thermostat that pairs straightforward touchscreen operation with safety, monitoring, and temperature flexibility. It looks like a good fit for users who want both everyday convenience and more detailed control over floor comfort.

Smart Replacement Pick – SunTouch CommandPLUS Floor Heating Thermostat

This radiant floor heating system with smart thermostat features is aimed at upgrades and replacements, especially if you are moving on from older SunTouch or Warm Your Floor controls. The SunTouch CommandPLUS adds Wi-Fi, app control, a large touchscreen, and an included floor sensor, making it a practical option for managing one electric heating zone.

Best For: Replacing older thermostats with a Wi-Fi touchscreen model that works with many electric floor heating systems.

Pros:

• Direct replacement for older SunTouch and Warm Your Floor thermostats.
• Works with many electric systems, including Nuheat, Warmup, QuietWarmth, and more.
• Wi-Fi, app control, and remote access with notifications and energy usage monitoring.
• Large touchscreen with floor sensor included and built-in GFCI safety.

Cons:

• Controls only a single zone of electric floor heat.
• Available only in the black-front, white-side finish.

Overall, this model stands out as a flexible upgrade path for existing systems where compatibility matters. If you want easy scheduling, remote control, and a modern display without changing the underlying heating setup, it fits that job well.

Wi-Fi Upgrade Choice – OJ Microline UWG4-4999 Electric Radiant Floor Thermostat

For buyers comparing a radiant floor heating system with smart thermostat features, this OJ Microline Wi-Fi model offers remote monitoring alongside the brand’s familiar touchscreen layout. It supports dual voltage, dual sensing, and a 7-day program, while the included floor sensor and floor-limiting features make it suitable for a wide range of compatible floor types.

Best For: Users who want remote Wi-Fi control and monitoring plus dual sensing for electric radiant floors.

Pros:

• Wi-Fi enabled for remote control and monitoring from a smartphone or tablet.
• Dual sensing and dual voltage support for flexible installations.
• 7-day programmable operation with adaptive energy-saving functionality.
• Includes floor sensor, child lock, vacation mode, and power logging.

Cons:

• Limited to 15 amps and 3600 watts at 240V.
• Designed for electric radiant floor heating rather than broader HVAC use.

In practical terms, this is the most connected OJ Microline option in the group, with remote access and monitoring layered onto a proven floor-heating control package. It makes sense if you want app-style convenience without giving up sensor-based floor management.

Value Pick – 20 Sqft Radiant Floor Kit with Programmable Thermostat

This radiant floor heating system with smart thermostat is a compact 120V kit designed for smaller rooms or targeted warmth under tile, laminate, and similar flooring. The package includes a self-adhesive heating mat, cable monitor/alarm, and an OJ Microline UDG-4999 programmable thermostat with floor sensor and built-in GFCI, so you get the main installation and control components in one box.

Best For: Homeowners wanting a smaller, complete electric floor heating kit with programmable control for a bathroom, entryway, or other compact space.

Pros:

• Complete kit includes heating mat, thermostat, floor sensor, and alarm
• Programmable thermostat offers 7-day scheduling plus dual air/floor sensing
• Built-in Class A GFCI adds an important safety layer
• Self-adhesive mat can be cut and turned for layout flexibility

Cons:

• 20 sqft coverage is limited for larger rooms
• Heating wires must be embedded in thinset, mortar, or self-leveling underlayment

Overall, this is a practical starter option if you want a complete system with smart scheduling features and a straightforward 120V setup. The 25-year limited warranty and UL-certified cable add confidence, but the small coverage area makes it best for focused installs rather than whole-room projects.

Best Heavy-Duty Pick – Dual-Sensor Radiant Floor Controller for 120V/240V Systems

If you already have a heated floor and only need control, this radiant floor heating system with smart thermostat is a standalone 120/240V controller built for underfloor heating. It combines air and floor sensing, a backlit LCD, programmable scheduling, and built-in Class A GFCI protection, making it a strong replacement or upgrade thermostat for compatible radiant setups.

Best For: Buyers who need a replacement or upgrade thermostat for an existing electric radiant floor heating system.

Pros:

• Works with both 120V and 240V systems
• Dual sensing uses both air and floor sensors
• Built-in self-testing Class A GFCI for added protection
• 7-day programming with backlit LCD for easy control

Cons:

• Does not include heating mat or cable
• 15A / 1800W at 120V may not suit larger loads

This is the most flexible control-only option in the group, especially if you want a thermostat with strong safety features and universal compatibility. The tradeoff is that it is not a complete heating kit, so it fits best when your flooring system is already in place.

Premium Wi-Fi Kit – 30 Sqft Cable System with Membrane and Wi-Fi Thermostat

This radiant floor heating system with smart thermostat is a more complete 120V kit that pairs heating cable with a Prova Flex-Heat uncoupling membrane and an OJ Microline Wi-Fi touchscreen thermostat. It is built for tile installations where you want heat plus crack prevention, waterproofing, and load support in one package.

Best For: Tile projects in bathrooms, kitchens, basements, or living areas where Wi-Fi control and membrane support are priorities.

Pros:

• Includes heating cable, Wi-Fi thermostat, alarm, and floor sensor
• Prova membrane adds crack prevention, waterproofing, and load support
• Wi-Fi thermostat supports remote monitoring and control from Android or iOS devices
• 7-day, 4-event programming plus built-in Class A GFCI

Cons:

• Heating wires must be covered with self-leveler or thinset
• 30 sqft coverage may still be too small for larger open areas

For buyers who want both smart control and a tile-ready installation layer, this kit stands out as the most feature-rich option here. The membrane and Wi-Fi thermostat make it especially appealing for remodels where comfort, protection, and convenience all matter.

How We Picked the Best Radiant Floor Heating System with Smart Thermostat

We looked for options that combine reliable radiant heat output with thermostat features that actually improve day-to-day use, such as Wi-Fi control, floor sensing, dual sensing, programmable schedules, and built-in safety protections like GFCI. We also prioritized compatibility with common residential voltages and kits that fit real renovation projects.

Quick Comparison

Some picks are complete heating mat kits, while others are thermostats designed to pair with an existing floor heating installation. That matters: if you need an all-in-one setup, choose a kit; if you already have mats or cables, a smart thermostat may be the better upgrade. Also check whether the system is for 120V or 240V, and whether it is intended for tile, laminate, or other approved floor types.

Key Buying Factors for a Radiant Floor Heating System with Smart Thermostat

Voltage and Coverage

Confirm the voltage first, then match the heated area to the square footage of the mat or cable system. Undersizing leaves cold spots, while oversizing can complicate installation and control.

Thermostat Type

For a Radiant Floor Heating System with Smart Thermostat control, look for Wi-Fi access, app scheduling, voice compatibility if you want it, and a clear touchscreen interface. Floor sensor support is especially important for maintaining comfortable surface temperatures.

Sensor Options

Dual-sensing thermostats monitor both room air and floor temperature, which can be useful in larger spaces or rooms with changing heat loads. Floor-only sensing is often enough for bathrooms and other smaller zones where surface comfort is the main goal.

Safety and Installation

GFCI protection is a valuable safety feature for electric radiant heat. If you are replacing an older thermostat or installing into a finished room, also confirm box depth, wiring requirements, and whether the control supports your heating cable or mat brand.

Who Should Buy Which Radiant Floor Heating System with Smart Thermostat?

Buy a full heating mat kit if you are starting from scratch and want the simplest path to a warm floor. Choose a smart thermostat only if your heating system is already installed and you want better scheduling or remote control. If you are comparing premium controls, pick the model that best balances easy setup, sensor flexibility, and the type of connectivity you will actually use.

For most shoppers, the best choice is the system that matches both the room size and the control style you prefer. That way, you get efficient heat, simpler daily use, and fewer surprises during installation.