Best Floor Heater Thermostats for Underfloor Heating
Choosing the right thermostat is essential for comfort, safety, and energy savings with any floor heating system. This guide highlights top-rated floor heater thermostats that support intelligent scheduling, remote access, and dual sensing for reliable performance. Each option is suitable for homes across the United States, with features ranging from voice control to built-in GFCI protection. Explore the selections below to find a thermostat that fits your system, wiring, and lifestyle while keeping floors warm on your schedule.
| Product | Brand | Key Features |
|---|---|---|
| SunTouch SunStat ConnectPlus | SunTouch | 4.3″ touchscreen, Wi‑Fi, floor & air sensing, 7‑day schedule, remote access, Alexa/Google |
| Schluter Ditra-Heat-E-RS1 Smart Thermostat | Schluter | Floor sensors, energy tracking, app control, voice assistant ready, 120/240V |
| OJ Microline UDG4 Touchscreen | OJ Microline | Dual sensing, GFCI, 120/240V, 3.5″ color touchscreen, floor sensor |
| OJ Microline UTN4 Radiant Floor Thermostat | OJ Microline | Non-programmable, dual sensing, GFCI, 120/240V, includes sensor |
| SunTouch SunStat CommandPlus | SunTouch | 4.3″ touchscreen, Wi‑Fi, floor & air sensing, energy monitoring, remote access |
SunTouch SunStat ConnectPlus Touchscreen Thermostat
The SunStat ConnectPlus offers remote access to floor heating via Wi‑Fi, with SmartStart that pre-warms the floor for scheduled times. Its 4.3-inch capacitive touchscreen presents a clear interface, while floor and air sensing helps maintain consistent comfort. A 7‑day programmable schedule and away mode support energy efficiency, and it provides alerts and weather display. Alexa and Google voice compatibility add hands-free convenience for households using smart speakers. The thermostat works across multiple flooring types with floor max settings that protect sensitive floors.
Schluter Ditra-Heat-E-RS1 Smart Thermostat
This smart thermostat is designed for Ditra-Heat systems and includes floor sensors for precise control. It supports energy tracking and app-based management, enabling efficient operation and cost awareness. It handles 120V or 240V systems and integrates with voice assistants for hands-free control. The unit is built to support larger loads with an optional power module, making it suitable for various room sizes. Safety features include GFCI protection for occupant safety, reducing risk in wet areas.
OJ Microline UDG4 Touchscreen Programmable Thermostat
The UDG4 provides an intuitive touchscreen interface with a built-in Class A GFCI for safe operation in radiant floor systems. Dual voltage (120V/240V) and dual sensing (air and floor) support a wide range of installations. The 7‑day programmable schedule, adaptive learning, and energy-focused features help balance comfort with efficiency. It includes a flooring sensor to monitor floor temperature and ensure safe operation on various surfaces.
OJ Microline UTN4 Radiant Floor Thermostat
The UTN4 non-programmable model provides straightforward control with built-in Class A GFCI. It supports dual voltage (120/240V) and dual sensing. This thermostat is designed for quick setup and reliable operation with compatible underfloor heating systems. It includes a sensor to monitor floor temperature and deliver consistent warmth without complex programming, making it a practical option for simpler installations.
SunTouch SunStat CommandPlus
The SunStat CommandPlus expands on the ConnectPlus with enhanced touchscreen usability and similar smart features. It supports remote access, a floor and air sensing mechanism, and a comprehensive energy monitoring suite. The 4.3-inch display emphasizes readability, and the device’s scheduling and away options support energy-conscious operation. Full voice assistant compatibility further simplifies daily thermostat control in a connected home.
Buying Guide
- System compatibility: Verify voltage (120V vs 240V) and whether your heating system requires dual sensing (air and floor) for accurate temperature management.
- GFCI protection: For floor heating, ensure the thermostat includes Class A GFCI (or is paired with a compliant module) to enhance electrical safety.
- Smart features: Consider Wi‑Fi connectivity, remote access, energy monitoring, and weather or outdoor temperature display if you want to optimize energy use and convenience.
- Programming and scheduling: A 7‑day program or adaptive learning can deliver better comfort and efficiency. Assess whether you prefer programmable, non-programmable, or adaptive options.
- Voice assistant compatibility: If you use Alexa or Google Assistant, ensure the thermostat offers seamless voice control for hands-free operation.
- Installation and wiring: Check installation requirements, mounting options, and whether the thermostat supports the existing subplate or backbox in your wall.
- Safety and warranty: Look for a solid warranty and reliable customer support. Ensure the device has clear instructions for sensor placement and safe operation on various floor types.
- Energy management: Features such as energy use metrics, floor max settings, and weather-based shutdowns help minimize waste and maintain consistent comfort.
- Future-proofing: If you plan to expand or upgrade to a full smart home, pick a model known for regular firmware updates and strong third‑party integrations.