Best Radiant Heat WiFi Thermostats for Warm Floors and Smart Homes
Answer: A WiFi-enabled radiant heat thermostat is ideal for homeowners who want precise, remote control of underfloor or wall-mounted electric heating. The top picks below target different buyer needs—from easy installs and voice control to advanced sensing and energy monitoring. Best for: busy homeowners seeking remote access; installers wanting robust sensing; energy-conscious users prioritizing schedules and reports.
The table below compares five strong options to help you decide quickly which fits your system and lifestyle.
| Product | Key Strength | Best For |
|---|---|---|
| SunTouch SunStat ConnectPlus | Floor and air sensing, 7-day schedule, Alexa/Google compatible | Smart, floor-aware control with remote access |
| OJ Microline UWG4-4999 | Dual sensing, GFCI, intuitive touchscreen | Safety-conscious users on varied flooring types |
| Laticrete 0804-0404-TW | WiFi programmable with high-res LCD | Simple WiFi setup for radiant floors |
| meross Smart Thermostat | HomeKit/Alexa/Google, 120–240V, energy saving | Ecosystem-friendly smart home integration |
| Mysa Smart Thermostat LITE | 8-day scheduling, remote control, voice support | Budget-friendly, versatile baseboard installations |
SunTouch SunStat ConnectPlus Touchscreen Thermostat

The SunStat ConnectPlus is a Wi-Fi thermostat designed for electric floor heating systems with a 4.3″ touchscreen. It includes floor and air sensing control, a 7-day programmable schedule, and remote access. It supports SmartStart to ensure the floor is warm at scheduled times and is compatible with voice assistants like Alexa and Google Assistant. This device is best for homeowners who want a polished, touchscreen interface and robust scheduling with remote monitoring. A potential limitation is reliance on Wi-Fi for full functionality, which may affect performance during internet outages.
OJ Microline UWG4-4999 WiFi Thermostat

The OJ Microline UWG4-4999 offers a touchscreen interface with Class A GFCI protection and dual sensing (air and floor), plus Wi-Fi for remote control. It supports 120V/240V systems and is suitable for multiple flooring types. This option suits buyers who want strong safety features, an intuitive UI, and energy monitoring via power logging. Limitations include the need for compatible wiring and installation adjustments for dual-sensing setups.
Laticrete 0804-0404-TW Strata Heat Smart LCD WiFi Thermostat

This Laticrete Strata Heat model features a high-resolution LCD touchscreen and 120V/240V compatibility for radiant floors. It emphasizes quick setup via QR code and seamless smart-home integration with Alexa and Google Home. It’s best for installers or homeowners seeking a straightforward WiFi-enabled thermostat with a clean display and reliable compatibility. A potential drawback is the QR-only setup requiring a smartphone during installation.
Mysa Smart Thermostat LITE

The Mysa LITE thermostat focuses on energy savings and simple installation for 120V-240V systems. It supports 7-day scheduling, remote control via the Mysa app, and compatibility with Apple HomeKit, Alexa, and Google. This option is ideal for budget-conscious homeowners who still want robust smart-home integration. A limitation is that it may be more basic than some feature-rich models and may lack some advanced floor-sensing controls found in higher-end units.
Buying Guide
What should you consider when choosing a radiant heat thermostat with WiFi?
- System compatibility: Confirm voltage (120V/240V) and whether you need dual-sensing (air and floor) for precise comfort.
- WiFi and app ecosystem: Choose a thermostat that works with your preferred smart home platforms (Alexa, Google Home, HomeKit).
- Sensor features: Floor-sensing versus air sensing, weather compensation, and warm weather shutdown affect comfort and energy use.
- Programming options: 7-day schedules, vacation modes, and adaptive learning can simplify daily control and save energy.
- Installation: Some models require a straightforward QR setup, while others benefit from professional wiring considerations.
Frequently Asked Questions
- Do WiFi thermostats work with radiant floor heating? Yes, they can control electric radiant floor systems via compatible wiring and power supply.
- Is dual-sensing necessary for all radiant floors? Not always, but dual sensing improves comfort by coordinating floor and air temperatures.
- Can I use these thermostats with voice assistants? Most models support Alexa, Google Home, or HomeKit either natively or via integrations.
- Do these thermostats require professional installation? Some installs are DIY-friendly; others may benefit from professional wiring, especially high-voltage or dual-sensing setups.
- Will WiFi outages affect operation? Some features rely on internet access; local control is common, but remote features may be limited during outages.
- Can I monitor energy usage with these thermostats? Several models offer power logging or energy reports to help manage consumption.