Manual Electric Floor Heating Thermostat with Floor Sensor

Overview Simple Manual Control for Electric Floor Heating This non-programmable electric floor heating thermostat provides straightforward rotary temperature control for compatible 120V and 240V floor heating cables and mats. It uses the supplied floor sensor to monitor floor temperature and automatically cycles the heating system to maintain the selected setting. Floor temperature control only: This thermostat does not measure or control room air temperature. Choose it when your application requires direct floor-sensor control rather than room-temperature control. Quick Fit Check Electric Floor Heating Designed for indoor electric floor heating cables and heating mats. 120V / 240V Compatible with properly wired 120V or 240V AC floor heating systems. 15A Maximum Load Rated for up to 15A resistive load. A properly rated contactor is required when the connected load exceeds this rating. Floor Sensor Only Uses the supplied 10 kOhm NTC floor sensor for temperature control. What Is Included? Included Floor Sensor The thermostat is supplied with the floor sensor required for temperature control. The sensor is rated 10 kOhm NTC at 77°F / 25°C. No Built-In GFCI This thermostat does not include GFCI protection. Use a GFCI-protected circuit where required by electrical code or the floor heating system manufacturer. Before Ordering Your system is electric floor heating System voltage is 120V or 240V AC Total resistive load does not exceed 15A You will use the supplied floor sensor Your flooring is approved for radiant floor heating Required GFCI protection is provided separately Flooring matters: Suitable floor finishes can include tile, stone, laminate, engineered wood, and similar materials approved for radiant floor heating. Always follow the flooring manufacturer's maximum allowable floor temperature. Line-voltage installation: Installation and wiring must be performed by a qualified electrician and comply with the National Electrical Code, Canadian Electrical Code, and applicable local electrical codes. Disconnect power at the breaker before installation or service. Prefer Smart or Programmable Control? This model is intentionally simple: rotary control, no programming, and floor-sensor-only operation. If you need WiFi, app control, or programmable scheduling, compare the YeloDeer Smart WiFi Electric Floor Heating Thermostat → Applications Recommended Applications Electric Floor Heating Heating Cables Heating Mats Radiant Floor Warming Compatible Floor Finishes Tile Stone Laminate Engineered Wood Simple Control Projects Manual Dial Non-Programmable Floor Sensor Control Compatibility Requirements Heating System Indoor electric floor heating cable or heating mat Control Method External floor sensor only System Voltage 120V or 240V AC Maximum Thermostat Load 15A resistive Floor Sensor Use only the sensor supplied with this thermostat Flooring Floor finish must be approved by its manufacturer for radiant floor heating Do Not Use When You need the thermostat to measure or control room air temperature. The connected floor heating load exceeds 15A unless a properly rated contactor is incorporated into the system. The installation requires built-in GFCI protection; this thermostat does not provide it. You intend to substitute an unverified third-party floor sensor. The thermostat would be exposed to water spray, excessive moisture, direct sunlight, corrosive environments, or excessive heat. The installation is outdoors. For bathrooms, kitchens, laundry rooms, or other damp locations, the thermostat must be protected from water splashing and excessive humidity. Specifications Technical Specifications Product Type Non-programmable electric floor heating thermostat Control Manual rotary dial Control Sensor Floor sensor only Voltage 120/240 VAC, 50/60 Hz Load Rating 15A resistive load Floor Sensor 10 kOhm NTC at 77°F / 25°C Temperature Setting Range 40°F–100°F Recommended Wire Size 14–12 AWG Storage Temperature 14°F–122°F / -10°C–50°C IP Class IP21 Built-In GFCI No Installation Environment Indoor use only Programmable No Terminal Functions L1 (LINE) Line input L2 / N (LINE) Neutral for 120V; Line 2 for 240V L1 (LOAD) Heating cable line output, maximum 15A resistive L2 / N (LOAD) Load return: Neutral for 120V; Line 2 for 240V NTC External floor sensor connection Important for 240V systems: In a 240V split-phase installation, the L2 / N terminal is used as Line 2, not Neutral. Do not identify conductors by color alone; the circuit must be correctly verified before wiring. Operation Rotate the knob clockwise from OFF to turn the thermostat on and select the desired floor temperature. Rotate the knob fully back to OFF to turn the thermostat off. The indicator light turns on when the thermostat is supplying power to the heating system. The indicator turns off when heating is not required or the thermostat is set to OFF. Typical floor comfort temperatures may fall between 75°F and 85°F, but the correct setting depends on the flooring material, room insulation, occupant preference, and the flooring manufacturer's temperature limits. Installation Disconnect power before wiring. This thermostat controls line-voltage equipment. Installation must be performed by a qualified electrician and comply with applicable national and local electrical codes. Before Installation Confirm 120V or 240V system voltage Confirm total floor heating load is 15A or less Confirm required GFCI protection Use the supplied floor sensor Review the heating system instructions Review flooring temperature limits 1. Position the Floor Sensor Route the supplied floor sensor from the thermostat wall box into the heated floor area. Place the sensor probe midway between two adjacent heating cables. Run the sensor probe parallel to the heating cables. Extend the probe at least 12 in / 30 cm into the heated area. Do not allow the sensor probe to touch, cross, or overlap a heating cable. Install the sensor according to the floor heating system manufacturer's instructions. Sensor placement is critical: Incorrect placement can cause inaccurate temperature sensing or poor heating performance. 2. Sensor Conduit or Protective Sleeve A sensor conduit or protective sleeve may be used when required by local code or recommended by the heating system manufacturer. Seal the floor end before applying thinset, mortar, self-leveling compound, or concrete. Feed the sensor wire through the conduit until the probe reaches the sealed end. If no conduit is used, secure the sensor directly to the subfloor as instructed by the heating system manufacturer. Do not run the floor sensor wire and heating power wires in the same conduit. 3. Thermostat Location Install the thermostat on an interior wall approximately 5 ft / 1.5 m above the finished floor. Choose a Protected Indoor Location Use an interior wall location suitable for the electrical box and floor sensor route. Avoid Problem Locations Do not install where exposed to direct sunlight, drafts, excessive moisture, exterior walls, additional heat sources, or water spray. 4. Wiring 120V System L1 is the live input and L2 / N is Neutral. Typical conductor colors may be black for Live and white for Neutral. 240V System L1 is Line 1 and L2 / N is Line 2. In a 240V split-phase system, L2 / N is not Neutral. Heating Load Connect the heating system to the designated LOAD terminals. Do not exceed the 15A resistive rating. Floor Sensor Connect the supplied external floor sensor to the NTC terminals. Grounding Connect grounding conductors according to local code and the floor heating system manufacturer's instructions. High Loads If the connected heating load exceeds the thermostat rating, use a properly rated contactor. 5. Before Energizing Confirm all wiring is complete and secure. Confirm the floor sensor has been correctly installed. Confirm the heating circuit has required GFCI protection. Do not energize the floor heating system until flooring, mortar, or other installation materials have cured according to their manufacturer's instructions. For additional information on identifying 120V and 240V floor heating circuits and avoiding common wiring mistakes, read the 120V vs. 240V Floor Heating Thermostat Wiring Guide →. Always follow the EU19A wiring diagram for the final thermostat connections. FAQ Frequently Asked Questions Is this thermostat for electric floor heating? Yes. It is designed for indoor electric floor heating systems using compatible heating cables or heating mats. Does it control room temperature? No. This thermostat uses the supplied floor sensor and controls floor temperature only. It does not measure or regulate room air temperature. Can I use it with both 120V and 240V floor heating? Yes. The thermostat is rated for 120/240 VAC, 50/60 Hz. The heating system and power supply must be correctly matched, and the connected load must remain within the 15A resistive rating. Does the thermostat include built-in GFCI protection? No. Use a GFCI-protected circuit where required by local electrical code or by the heating system manufacturer. Can I reuse a different floor sensor? No substitute sensor is specified for this model. Use only the floor sensor supplied with the thermostat. If it is damaged, missing, or not operating correctly, contact YeloDeer for a replacement. Where should the floor sensor be installed? Place the probe midway between two adjacent heating cables, parallel to the cables, and at least 12 in / 30 cm into the heated area. The probe must not touch, cross, or overlap a heating cable. What if my floor heating system draws more than 15A? Do not connect a load above the thermostat's 15A resistive rating directly to the thermostat. The manual specifies using a properly rated contactor when the heating load exceeds the thermostat rating. What does the indicator light mean? The indicator is on when the thermostat is supplying power to the floor heating system. It turns off when heating is not required or when the thermostat is set to OFF. Guides Pre-Installation Checklist Verify 120V or 240V supply Calculate total heating amperage Confirm GFCI protection Plan the floor sensor location Check flooring temperature limits Have a qualified electrician complete the wiring Related YeloDeer Resource For help understanding the difference between 120V and 240V floor heating wiring, conductor identification, grounding, and common installation mistakes, see the 120V vs. 240V Floor Heating Thermostat Wiring Guide →. Use the product manual for final installation. Wiring terminal names and specifications vary between thermostat models. Follow the EU19A wiring diagram and the floor heating manufacturer's instructions for the actual installation. Warranty The thermostat includes a 1-year limited warranty for quality-related issues, limited to the product itself. The warranty does not cover damage caused by improper installation, misuse or abuse, accidents, unauthorized modification, or failure to follow the product instructions. For compatibility, installation, replacement sensor, or technical support questions, contact yelodeer@yelodeer.com with your system voltage, connected load, floor heating system information, wiring photos, and a description of the issue.