Best picks

9 Best Wi-Fi Thermostats for Radiant Floor Heating (November 2026)

Updated on · By the Thermostat Home team

The best Wi-Fi radiant floor thermostats include the MAXKOSKO WiFi Smart Radiant Underfloor Heating Thermostat for app and voice control, the OJ Microline Electric Radiant Floor Heating Thermostat for dual sensing and GFCI, and the BOWSEN Programmable Thermostat for House Radiant Underfloor for wired high-load control.

On this page (14 sections)
  1. Which Wi-Fi radiant floor thermostat is best for each use?
  2. 1. MAXKOSKO WiFi Smart Radiant Underfloor Heating Thermostat
  3. 2. OJ Microline Electric Radiant Floor Heating Thermostat
  4. 3. BOWSEN Programmable Thermostat for House Radiant Underfloor
  5. 4. OJ Microline UDG4 Touchscreen Programmable Heated Floor
  6. 5. LuxHeat 50 sqft Floor Heating System
  7. 6. Nuheat nVent Signature AC0055 WiFi Programmable Floor Heating Thermostat
  8. 7. SunTouch SunStat ConnectPlus Smart Wi-Fi Floor Heating Thermostat
  9. 8. Nuheat nVent Home AC0056 Programmable Touchscreen Floor Heating Thermostat
  10. 9. Schluter Ditra-Heat-E-RS1 Smart Thermostat Floor Warming System
  11. How do you choose a Wi-Fi underfloor heating thermostat?
  12. Does GFCI matter for electric radiant floor heating?
  13. What is the best radiant floor thermostat for a new installation?
  14. Final choice for the best wifi radiant floor thermostat

The best wifi radiant floor thermostat for most homes is the MAXKOSKO WiFi Smart Radiant Underfloor Heating Thermostat, with app, voice and touchscreen control plus a 15 ft floor sensor. It suits households that want one control used from the wall, a phone, or by voice.

Choose OJ Microline or Nuheat when dual-voltage support, GFCI protection, floor sensing or broader smart-home control matters more. Those needs often outweigh a large screen or a long sensor lead, especially in bathrooms and tiled kitchens.

We compared 9 connected and programmable floor-heating controls by voltage support, load, sensing, scheduling, safety and remote control. The right choice depends first on your heating system, then on your daily controls.

A 120V system and a 240V system are not interchangeable, and a thermostat with too little load capacity will not suit a larger mat or cable run. Check those electrical details before comparing app features or screen size.

Floor sensing separates models that rely mainly on air temperature from those that can limit the surface itself. That limit helps protect laminate, wood and other finishes that should not get too hot.

Scheduling also matters, as a 7-day program can handle weekday and weekend routines while app access lets you change settings away from home.

If your system uses electric resistance heat, compare our best thermostat for electric heater recommendations. For baseboard systems, see the best thermostat for electric baseboard heater guide.

For most homes, MAXKOSKO is the easiest starting point for connected daily use. Before ordering, confirm voltage, load, sensor needs and wall box space with the heating system manual.

Our picks at a glance

  1. 1 MAXKOSKO WiFi Smart Radiant Underfloor Heating Thermostat
    Best for app and voice control

    MAXKOSKO WiFi Smart Radiant Underfloor Heating Thermostat

    9.7/10 our score

    See it on Amazon
  2. 2 OJ Microline Electric Radiant Floor Heating Thermostat
    Best for dual sensing and GFCI

    OJ Microline Electric Radiant Floor Heating Thermostat

    9.4/10 our score

    See it on Amazon
  3. 3 BOWSEN Programmable Thermostat for House Radiant Underfloor
    Best for wired high-load control

    BOWSEN Programmable Thermostat for House Radiant Underfloor

    9.3/10 our score

    See it on Amazon
  1. 4OJ Microline UDG4 Touchscreen Programmable Heated FloorCheck it
  2. 5LuxHeat 50 sqft Floor Heating System

    LuxHeat 50 sqft Floor Heating System

    Best for a complete 50 sq ft kit
    Check it
  3. 6Nuheat nVent Signature AC0055 WiFi Programmable Floor Heating ThermostatCheck it
  4. 7SunTouch SunStat ConnectPlus Smart Wi-Fi Floor HeatingCheck it
  5. 8Nuheat nVent Home AC0056 Programmable Touchscreen Floor

    Nuheat nVent Home AC0056 Programmable Touchscreen Floor

    Best for simple touchscreen programming
    Check it
  6. 9Schluter Ditra-Heat-E-RS1 Smart Thermostat Floor Warming SystemCheck it

Which Wi-Fi radiant floor thermostat is best for each use?

The MAXKOSKO is the strongest general Wi-Fi pick, while OJ Microline and Nuheat offer specific combinations of sensing, voltage support, GFCI protection and smart-home control. BOWSEN is a wired alternative, and LuxHeat is a complete mat-and-thermostat kit.

That split reflects two shopping jobs. One is replacing a thermostat for a floor system that already exists, and the other is planning a new heated floor from the mat or cable upward.

Our score weighs specs, features and buyer feedback against what you are shopping for, with products listed from highest to lowest. It does not replace individual checks for your room.

Voltage, load, sensor type and compatibility with your exact heating cable or mat still decide whether a model is suitable.

MAXKOSKO scores highly for everyday connected control through app, voice and touchscreen options. OJ Microline earns its place through dual sensing, dual voltage and a stated load rating, while Nuheat Signature adds broader integrations for Alexa, Google Assistant, IFTTT and Control4 users.

BOWSEN takes a simpler wired route with push buttons and a backlit LCD. LuxHeat is separate because it supplies the heating mat as well as the thermostat.

ProductBest forControlSensorMountingOur score
MAXKOSKO WiFi Smart Radiant Underfloor Heating Thermostatapp and voice controlApp, remote, touch and voice15 ft floor sensorWall mount9.7
OJ Microline Electric Radiant Floor Heating Thermostatdual sensing and GFCI9.4
BOWSEN Programmable Thermostat for House Radiant Underfloorwired high-load controlPush buttons9.3
OJ Microline UDG4 Touchscreen Programmable Heated Floortouchscreen scheduling8.9
LuxHeat 50 sqft Floor Heating Systema complete 50 sq ft kit8.5
Nuheat nVent Signature AC0055 WiFi Programmable Floor Heating Thermostatsmart-home integrationApp, web browser and touchscreen8.3
SunTouch SunStat ConnectPlus Smart Wi-Fi Floor Heatingremote monitoring8.2
Nuheat nVent Home AC0056 Programmable Touchscreen Floorsimple touchscreen programmingTouchscreen with physical on/off switchFloor heat sensor included8.1
Schluter Ditra-Heat-E-RS1 Smart Thermostat Floor Warming SystemDitra-Heat systemsTouch, app and voice assistants8.0

1. MAXKOSKO WiFi Smart Radiant Underfloor Heating Thermostat

1

MAXKOSKO WiFi Smart Radiant Underfloor Heating Thermostat: Best for app and voice control

MAXKOSKO WiFi Smart Radiant Underfloor Heating Thermostat, Wi-Fi radiant floor thermostats
9.7/10Our score
  • Wi-Fi app control
  • Amazon Alexa and Google Assistant support
  • Programmable settings
  • 15 ft floor sensor

MAXKOSKO combines Wi-Fi, app, voice and touchscreen control in one wall-mounted thermostat. Its programmable settings and 15 ft floor sensor suit connected floor-heating systems.

See it on Amazon

Pros

  • Wi-Fi and app control
  • Voice control with Alexa and Google Assistant
  • 15 ft floor sensor

Cons

  • Exact electrical load is not stated
  • Compatibility should be confirmed before installation

MAXKOSKO is the best fit when you want to adjust floor heating from a phone or use voice control at home. Its Wi-Fi connection, Smart Life app control, Amazon Alexa support and Google Assistant support give you several ways to change settings.

That range suits busy households. You can set a schedule once, make a quick change at the wall, or adjust the temperature while away.

The thermostat is programmable, so you can set different heating periods instead of making manual changes all day. A touchscreen LED display keeps direct control available at the wall.

Programming is most useful when your routine repeats, with morning warm-up, daytime setback and evening comfort following the clock.

The included 15 ft floor sensor gives longer reach than a short fixed lead. Confirm that the sensor and electrical requirements match your existing underfloor heating system before installation.

A longer lead helps when the wall control is not close to the floor area to sense. Plan the sensor position during installation rather than treating it as an afterthought.

Choose MAXKOSKO for connected control and a simple wall interface. Its exact electrical load is not stated, so verify the system match before replacing a line-voltage thermostat.

MAXKOSKO WiFi Smart Radiant Underfloor Heating ThermostatCheck it on Amazon

2. OJ Microline Electric Radiant Floor Heating Thermostat

2

OJ Microline Electric Radiant Floor Heating Thermostat: Best for dual sensing and GFCI

OJ Microline Electric Radiant Floor Heating Thermostat, Wi-Fi radiant floor thermostats
9.4/10Our score
  • Wi-Fi control
  • 120V and 240V support
  • Air and floor sensing
  • Built-in Class A GFCI

OJ Microline adds Wi-Fi control to dual-voltage electric floor heating. Air and floor sensing, a 7-day program and built-in Class A GFCI make it a strong all-around control.

See it on Amazon

Pros

  • Dual voltage
  • Floor sensor included
  • Power logging and vacation mode

Cons

  • Designed for electric radiant floor systems
  • Electrical installation requires care

OJ Microline is the best choice here when you want Wi-Fi control plus dual air and floor sensing. It supports 120V and 240V systems, with a stated 15A limit and 1800W at 120V or 3600W at 240V.

Those stated limits make it easier to compare with a heating mat or cable system. You can check the total load before you reach the scheduling and app features.

The 3.5 in color touchscreen supports a 7-day program, vacation mode, child lock, temporary overrides and open-window mode. Power logging can send energy-use reports to a computer or mobile device.

The color screen helps at a glance in a hallway or bathroom. Child lock and vacation mode are useful when the thermostat sits where guests or children may tap it.

Its built-in Class A GFCI adds an electrical safety function, while the floor sensor and floor-limit range suit installations where floor temperature needs close control. OJ also describes use with tile, marble, carpet, concrete, laminate and wood floors.

Floor limiting is a practical benefit with wood and laminate. It lets the surface reach a comfortable level without being driven higher by the air temperature setting alone.

Pick it when the heating load fits and you want the most complete mix of Wi-Fi, sensing and scheduling in this group. The main care point is a careful line-voltage installation that matches the system manual.

OJ Microline Electric Radiant Floor Heating ThermostatCheck it on Amazon

3. BOWSEN Programmable Thermostat for House Radiant Underfloor

3

BOWSEN Programmable Thermostat for House Radiant Underfloor: Best for wired high-load control

BOWSEN Programmable Thermostat for House Radiant Underfloor, Wi-Fi radiant floor thermostats
9.3/10Our score
  • 120V and 240V support
  • Air and floor sensing
  • Built-in Class A GFCI
  • 7-day programming

BOWSEN is a wired programmable option for radiant floor systems that need 120V or 240V support. It uses push buttons and a backlit LCD instead of app-based Wi-Fi control.

See it on Amazon

Pros

  • Dual voltage
  • 15A load capacity
  • Built-in GFCI with test function

Cons

  • Wired control rather than Wi-Fi app control
  • No floor sensor inclusion is stated

BOWSEN suits buyers who need programmable radiant-floor control without phone-based operation. Its wired push-button design uses a backlit LCD and supports both 120VAC and 240VAC systems.

That simple layout suits a utility room, workshop or any space where a large touchscreen is not wanted. The backlight helps in a dim corner.

The maximum current is 15A, with 1800W at 120V or 3600W at 240V. A built-in Class A GFCI includes a test function, and an on/standby switch shuts down heating at the end of the season.

A stated load rating helps with larger floor areas. Still check the combined load of the cables or mats you plan to connect, rather than relying on voltage alone.

The 7-day schedule reduces repeated manual adjustments. BOWSEN describes air and floor sensing, but its included components list names only the thermostat and instructions, so confirm the sensor arrangement for your installation.

That sensor check matters for floor protection. Ask what sensor the system uses and where it sits before planning final temperature limits.

Choose BOWSEN for high-load wired control and a simple display. Choose a different product if Wi-Fi app access is essential, as wired control helps without strong Wi-Fi but lacks app access.

BOWSEN Programmable Thermostat for House Radiant UnderfloorCheck it on Amazon

4. OJ Microline UDG4 Touchscreen Programmable Heated Floor

4

OJ Microline UDG4 Touchscreen Programmable Heated Floor: Best for touchscreen scheduling

OJ Microline UDG4 Touchscreen Programmable Heated Floor, Wi-Fi radiant floor thermostats
8.9/10Our score
  • 3.5 in color touchscreen
  • 120V and 240V support
  • Dual air and floor sensing
  • Class A GFCI

The OJ Microline UDG4 focuses on direct touchscreen control and scheduled floor heating. Its dual sensing, floor sensor and voltage support fit many electric radiant-floor installations.

See it on Amazon

Pros

  • 7-day, 4-event program
  • 3.5 in touchscreen
  • Floor sensor included

Cons

  • Remote Wi-Fi control is not described in the feature data
  • Load must match the heating system

The OJ Microline UDG4 suits buyers who prefer direct touchscreen scheduling. Its 7-day, 4-event program lets you organize heating periods around a regular routine.

Four events per day give room for morning, midday, evening and night settings. That suits households following similar times on most days.

It supports 120V and 240V electric radiant systems at 15A, with stated limits of 1800W at 120V and 3600W at 240V. Dual air and floor sensing, floor limiting and the included floor sensor give more control over flooring needs.

Dual sensing balances room comfort with surface protection. Floor limiting is especially relevant for laminate and wood, where the finish should not be pushed to high temperatures.

The 3.5 in color touchscreen also supports child lock, vacation mode, open-window mode, temporary overrides and power logging. The floor limit range is 41°F to 104°F, while the ambient range is 32°F to 104°F.

Set the floor limit for the flooring type, then let the air setting handle the overall room feel.

Select this model for a clear wall touchscreen and scheduled control. Its data does not describe remote Wi-Fi app operation, so do not assume that feature from the product name alone.

OJ Microline UDG4 Touchscreen Programmable Heated FloorCheck it on Amazon

5. LuxHeat 50 sqft Floor Heating System

5

LuxHeat 50 sqft Floor Heating System: Best for a complete 50 sq ft kit

LuxHeat 50 sqft Floor Heating System, Wi-Fi radiant floor thermostats
8.5/10Our score
  • 50 sq ft self-adhesive heating mat
  • 120V system
  • 600W output
  • OJ Microline UWG4-4999 Wi-Fi thermostat

LuxHeat is a floor-heating kit rather than a thermostat alone. It pairs a 50 sq ft, 120V heating mat with an OJ Microline Wi-Fi thermostat and floor sensor.

See it on Amazon

Pros

  • Heating mat and thermostat together
  • 50 sq ft coverage
  • 600W system output

Cons

  • Not a thermostat-only replacement
  • Mat installation needs the correct underlayment or mortar

LuxHeat is the best option when you need the heating mat and Wi-Fi thermostat together. The kit includes a 50 sq ft, 120V self-adhesive mat, a cable monitor and alarm, and an OJ Microline UWG4-4999 Wi-Fi programmable thermostat with floor sensor and built-in GFCI.

That bundle suits a new installation rather than a repair. You get the mat, the control and the sensor as one planned package.

The mat measures 20 in wide by 30.9 ft long and produces 600W at 120V. Its 3 in pre-spaced layout can be cut, turned, flipped or rotated for coverage, but the red heater wire must not be cut or shortened.

The layout flexibility helps around doorways and alcoves. The warning about the heater wire is central, because cutting it can damage the mat and affect safe operation.

Heating wires need to be embedded in self-leveling underlayment, thinset or mortar. The kit is therefore a better fit for a new floor-heating installation than for a thermostat-only replacement.

Plan the floor build-up before the mat goes down. The underlayment or mortar choice, the cable monitor and the sensor position all need attention during the same project.

Choose LuxHeat when the 50 sq ft coverage matches your room and you want one package containing the mat and connected thermostat. Measure the usable floor area first, so the kit fits the space you actually intend to heat.

LuxHeat 50 sqft Floor Heating SystemCheck it on Amazon

6. Nuheat nVent Signature AC0055 WiFi Programmable Floor Heating Thermostat

6

Nuheat nVent Signature AC0055 WiFi Programmable Floor Heating Thermostat: Best for smart-home integration

Nuheat nVent Signature AC0055 WiFi Programmable Floor Heating Thermostat, Wi-Fi radiant floor thermostats
8.3/10Our score
  • Wi-Fi app and web control
  • 3.5 in color touchscreen
  • 120V and 240V compatibility
  • Class A GFCI

Nuheat Signature suits a connected home that uses app, browser or smart-home control. Its dual-voltage design, 7-day programming and GFCI support cover the core floor-heating needs.

See it on Amazon

Pros

  • App and web access
  • Broad smart-home integration
  • Dual voltage

Cons

  • Exact electrical load is not stated
  • The larger listed dimensions need a box-fit check

Nuheat Signature is the strongest pick for a home that already uses smart-home platforms. It supports control through an iOS or Android app, a web browser, a 3.5 in color touchscreen and integrations such as Alexa, Google Assistant, IFTTT and Control4.

That breadth suits households with more than one connected system. Floor heating can sit beside lighting or locks rather than living in a separate app.

The thermostat supports 7-day programming and works with 120V and 240V floor-heating cables. Built-in Class A GFCI protection adds safety for compatible electric floor-heating installations.

Dual-voltage support helps when the same model may be used across different rooms. GFCI adds an electrical safety layer, although it does not replace correct wiring.

App and web access are useful when changing a schedule away from home. The web option also helps when a phone is not handy.

Pick Nuheat Signature when ecosystem support matters as much as basic scheduling. Confirm the electrical load and wall-box fit before installation because the data does not state a load rating.

Nuheat nVent Signature AC0055 WiFi Programmable Floor Heating ThermostatCheck it on Amazon

7. SunTouch SunStat ConnectPlus Smart Wi-Fi Floor Heating Thermostat

7

SunTouch SunStat ConnectPlus Smart Wi-Fi Floor Heating: Best for remote monitoring

SunTouch SunStat ConnectPlus Smart Wi-Fi Floor Heating, Wi-Fi radiant floor thermostats
8.2/10Our score
  • 4.3 in touchscreen
  • Wi-Fi remote access
  • Floor and air sensing
  • Energy-use monitoring

SunTouch ConnectPlus gives floor-heating users a large 4.3 in screen, app access and monitoring features. SmartStart and floor maximum settings add useful scheduling and floor-protection controls.

See it on Amazon

Pros

  • Largest screen here
  • Remote app control
  • Alexa and Google Assistant support

Cons

  • Exact load rating is not stated
  • It is designed for electric floor heating

SunTouch ConnectPlus suits buyers who want a larger display and detailed remote monitoring. Its 4.3 in capacitive touchscreen can be mounted in portrait or landscape orientation, and the Watts Home app supports remote changes from iOS and Android devices.

SmartStart adjusts when the floor-heating system turns on so the floor is warm at the scheduled time. The thermostat also includes floor and air sensing, 7-day programming, an away setting, energy-use monitoring and floor maximum settings.

Floor maximum settings help protect flooring that needs a limit while the room still feels comfortable. Outdoor temperature and weather displays, warm-weather shutdown and email alerts add information around the heating schedule.

Alexa and Hey Google support provide voice options. Weather information can guide your expectations, and warm-weather shutdown may help avoid unnecessary heating when the weather turns mild.

Choose ConnectPlus when screen size, remote access and monitoring are priorities. Confirm the heating load and wiring because the product facts state 120V and 240V support but do not give a maximum wattage.

That missing load figure is the main check before purchase. Match the thermostat to the total heating load, then use the monitoring features to review how the schedule performs.

SunTouch SunStat ConnectPlus Smart Wi-Fi Floor HeatingCheck it on Amazon

8. Nuheat nVent Home AC0056 Programmable Touchscreen Floor Heating Thermostat

8

Nuheat nVent Home AC0056 Programmable Touchscreen Floor: Best for simple touchscreen programming

Nuheat nVent Home AC0056 Programmable Touchscreen Floor, Wi-Fi radiant floor thermostats
8.1/10Our score
  • 3.5 in color touchscreen
  • 7-day programming
  • 120V and 240V compatibility
  • Class A GFCI

Nuheat Home is a straightforward programmable floor-heating thermostat with a color touchscreen and physical on/off switch. It fits buyers who want scheduling and diagnostics without choosing the Signature model.

See it on Amazon

Pros

  • Dual voltage
  • Floor heat sensor included
  • Setup wizard and diagnostic tests

Cons

  • Wi-Fi app control is not described in the feature data
  • Power source details should be confirmed

Nuheat Home is a straightforward choice for scheduled electric floor heating. Its 3.5 in color touchscreen, 7-day programming and physical on/off switch keep the main controls easy to reach.

The physical switch is a small but useful detail. It gives a clear way to shut the system down without relying on a menu.

The thermostat supports 120V and 240V floor-heating cables and includes a floor heat sensor. Class A GFCI protection, diagnostic tests and a setup wizard help with the initial setup and basic system checks.

A setup wizard can reduce errors during the first power-up. Diagnostic tests may also help confirm that the sensor and heating output are responding as expected.

Energy-use monitoring can help you compare schedule changes over time. Nuheat also describes an early-start feature that adjusts power-on times based on recent temperature trends.

Early start can make a morning routine feel smoother. Energy monitoring gives a reference when you try a lower setback temperature or a shorter heating period.

Choose this model when you want Nuheat's touchscreen layout and dual-voltage support without the broader smart-home integration described for the Signature model. Confirm power and wiring details before installation.

That keeps the choice focused on daily scheduling and floor control. It is a simpler fit for homes that do not need the wider platform links.

Nuheat nVent Home AC0056 Programmable Touchscreen FloorCheck it on Amazon

9. Schluter Ditra-Heat-E-RS1 Smart Thermostat Floor Warming System

9

Schluter Ditra-Heat-E-RS1 Smart Thermostat Floor Warming System: Best for Ditra-Heat systems

Schluter Ditra-Heat-E-RS1 Smart Thermostat Floor Warming System, Wi-Fi radiant floor thermostats
8.0/10Our score
  • Designed for Ditra-Heat floor systems
  • 120V and 240V heating-cable control
  • Built-in Class A GFCI
  • App and voice integration

Schluter RS1 is the clearest fit for DITRA-HEAT-E-HK heating cables. It supports app control, voice integration and loads up to 15A, with expansion options for larger installations.

See it on Amazon

Pros

  • Purpose-built for Ditra-Heat
  • 120V and 240V support
  • Built-in GFCI

Cons

  • Best fit depends on a Schluter Ditra-Heat system
  • Loads over 15A need compatible power modules

Schluter RS1 is the right fit for a DITRA-HEAT floor-warming system using DITRA-HEAT-E-HK heating cables. It controls 120V or 240V cables and supports multiple cables up to a total 15A heating load.

That system focus makes planning clearer. You start with the Schluter cable and mat layout, then choose the control that matches that setup.

The thermostat uses the Schluter Smart Thermostat app, touch controls and voice assistants. A built-in Class A GFCI provides electrical protection, while floor and dual sensors support floor-temperature control.

App control lets you adjust the system when you are away from the room. Dual sensors can balance floor temperature with the feel of the room itself.

For installations over 15A, compatible Schluter power modules can expand the system while keeping one control point. Confirm the heating cable and power-module match before planning a larger floor area.

Expansion is useful for large bathrooms or open-plan spaces. It still needs a load calculation, so the total heating load stays within the planned setup.

Choose RS1 when the project is built around Schluter's floor-warming system. For a general electric floor-heating replacement, OJ Microline or Nuheat may offer a broader starting point.

That distinction saves time. A system-specific control is ideal for its own system, while a general control may suit mixed or existing installations.

Schluter Ditra-Heat-E-RS1 Smart Thermostat Floor Warming SystemCheck it on Amazon

How do you choose a Wi-Fi underfloor heating thermostat?

Start with the heating system's voltage and load. A thermostat that supports 120V but not 240V, or a unit with too little load capacity, may not be a suitable replacement.

Those details come before screen size or app design, as the thermostat must switch the full heating load safely and suit the cable or mat in the floor.

Next, check the sensor setup. Floor sensing helps control the heated surface and can matter for flooring that needs a temperature limit, while dual sensing combines floor and room information.

A floor sensor can protect wood or laminate from excessive surface heat, so think about where it will sit and how its lead reaches the floor. A sensor in the wrong spot can give a misleading reading, even when the thermostat is well chosen.

Then compare the daily controls:

  • Choose app control if you want to change settings away from home.
  • Choose voice control if your thermostat needs to work with Alexa or Google Assistant.
  • Choose a touchscreen if direct wall control matters.
  • Choose 7-day programming if your schedule changes by weekday and weekend.
  • Choose a complete kit if you need both a heating mat and thermostat.

Each option suits a different routine. App control helps with travel, voice control helps when your hands are full, and a touchscreen helps guests who do not want to use an app.

7-day programming suits a repeated timetable better than a single daily setting. A complete kit suits a new floor project, while a thermostat-only model suits a replacement job.

For more electric-heating options, see our guide to the best wifi electric heat thermostat. If your project is for a heated floor, our best floor heating thermostat guide gives another comparison point.

Does GFCI matter for electric radiant floor heating?

GFCI protection matters because it can interrupt power when electrical leakage is detected. OJ Microline, BOWSEN, Nuheat Signature, Nuheat Home and Schluter RS1 include Class A GFCI features in the product information used here.

That protection is especially relevant in bathrooms and other damp rooms. Electric floor heating in those spaces needs a safety feature that responds to leakage, not only to temperature.

GFCI also gives you a clear warning sign when something is wrong. A trip should prompt a check of the wiring, cable and installation rather than a simple reset and forget.

A GFCI does not replace correct wiring or installation. Turn off power before work, follow the thermostat and heating-system instructions, and use a qualified electrician for line-voltage installation when you are not trained to do it.

Test the GFCI function as the instructions direct after installation. Keep the instructions with the heating system papers so the test steps are easy to find later.

For a replacement thermostat, confirm that the GFCI feature matches the code and wiring needs for your room. The safest choice is the one that fits both the heating load and the electrical requirements of the space.

What is the best radiant floor thermostat for a new installation?

LuxHeat is the best fit here for a new 50 sq ft installation because it combines a 120V heating mat, cable monitor and alarm, floor sensor and OJ Microline Wi-Fi thermostat. For a thermostat-only project, MAXKOSKO offers the simplest connected control, while Schluter RS1 fits DITRA-HEAT systems.

That difference comes down to what you are actually buying. A new floor project needs the mat, sensor and control to work together, while a replacement project mainly needs a compatible wall control.

For a new bathroom, kitchen or hallway, plan the mat layout before you choose the thermostat. The coverage, cable route and sensor position should be settled as part of one installation plan.

Measure the floor area that can actually be heated before choosing a mat. Keep fixed cabinets, plumbing fixtures and other areas that should not receive heating out of the usable coverage calculation.

A generous room measurement can lead to a mat that is too large for the open floor. Measure the clear area, then check the mat size against that space.

Also plan the thermostat position and the route for the sensor lead. A control placed for easy daily use will serve you better than one hidden behind a door or in direct sunlight.

For a thermostat-only replacement, check the existing sensor and load first. MAXKOSKO suits connected control, OJ Microline suits dual sensing with a stated load, and Schluter RS1 suits a Ditra-Heat system.

Final choice for the best wifi radiant floor thermostat

Choose MAXKOSKO if app, voice and touchscreen control are your main priorities. Choose OJ Microline UWG4 if you want Wi-Fi, dual sensing, dual voltage and a stated 15A load rating.

Those two picks cover the most common replacements in this guide. MAXKOSKO keeps daily control flexible, while OJ Microline gives clearer electrical and sensing information for comparison.

Pick BOWSEN for wired programmable control, LuxHeat for a 50 sq ft mat kit, Nuheat Signature for smart-home integration, SunTouch for a large screen and monitoring, and Schluter RS1 for DITRA-HEAT systems.

Each of those choices solves a different problem. BOWSEN avoids app dependence, LuxHeat supplies the mat, Nuheat Signature links to wider platforms, SunTouch adds a larger display, and Schluter RS1 stays within its own floor system.

Match the thermostat to the voltage, load, sensor and floor system before ordering. That match matters more than the badge or the screen style.

Take a few minutes to check the heating cable or mat details and the wall box space. A careful match at the start should make daily use simpler and the installation safer.

Our top 3 picks at a glance

  1. 1 MAXKOSKO WiFi Smart Radiant Underfloor Heating Thermostat
    Best for app and voice control

    MAXKOSKO WiFi Smart Radiant Underfloor Heating Thermostat

    9.7/10 our score

    See it on Amazon
  2. 2 OJ Microline Electric Radiant Floor Heating Thermostat
    Best for dual sensing and GFCI

    OJ Microline Electric Radiant Floor Heating Thermostat

    9.4/10 our score

    See it on Amazon
  3. 3 BOWSEN Programmable Thermostat for House Radiant Underfloor
    Best for wired high-load control

    BOWSEN Programmable Thermostat for House Radiant Underfloor

    9.3/10 our score

    See it on Amazon

Frequently asked questions

What is the best wifi radiant floor thermostat?

The MAXKOSKO WiFi Smart Radiant Underfloor Heating Thermostat is the best wifi radiant floor thermostat in this comparison for app, voice and touchscreen control. OJ Microline and Nuheat are strong alternatives when dual-voltage support, GFCI protection, floor sensing or smart-home integration matters more.

Do radiant floor thermostats need a floor sensor?

A floor sensor helps the thermostat measure floor temperature instead of relying only on room air. That matters for floor protection and comfort, especially with laminate or wood.

Several picks here include a floor sensor, while others require you to confirm the sensor arrangement before installation.

Can a Wi-Fi thermostat control electric radiant floor heating?

Yes, a compatible Wi-Fi thermostat can control electric radiant floor heating when its voltage, load rating, wiring and sensor setup match the system. Check whether the thermostat supports 120V, 240V or both, and use a qualified electrician for line-voltage wiring.

What should I check before buying an underfloor heating thermostat?

Check the heating system type, voltage, maximum load, floor sensor, GFCI protection and installation box space. Then compare scheduling, app access and voice control.

A thermostat designed for a different cable system or load can be the wrong replacement even if its screen and controls look similar.