1. Important Safety Information
Please read all instructions carefully before installing or operating this thermostat. Failure to follow these instructions could result in fire, electric shock, serious injury, or property damage. Keep this manual for future reference.
- Electrical Installation: Installation must be performed by a qualified electrician in accordance with local and national electrical codes. Ensure power is disconnected at the main circuit breaker before any installation or maintenance.
- GFCI Protection: This thermostat features a built-in Class A Ground Fault Circuit Interrupter (GFCI) for enhanced safety, especially in bathrooms, kitchens, and damp areas. Regularly test the GFCI function as per local regulations.
- Voltage Compatibility: Ensure the thermostat's voltage rating (120V/208V/240V) matches your electrical supply.
- Floor Sensor: The included 15-ft floor sensor is crucial for accurate temperature control and protecting your flooring from overheating. Do not operate the system without a properly installed floor sensor.
- Intended Use: This thermostat is designed for electric radiant in-floor heating systems. Do not use it for other applications unless explicitly stated by the manufacturer.
2. Product Overview
The Stelpro Concerto Smart Thermostat is an advanced programmable thermostat designed for electric radiant in-floor heating systems. It offers precise temperature control, remote management via Wi-Fi, and an intuitive mobile application for enhanced comfort and energy efficiency.

Figure 2.1: Front view of the Stelpro Concerto Smart Thermostat, showing the digital display, up/down arrows, and power button. A Wi-Fi icon is visible in the top right corner.

Figure 2.2: The thermostat seamlessly integrated into a modern living room wall, demonstrating its sleek design and discreet presence.
Key Features:
- Wi-Fi Connectivity: Remote control and monitoring via a mobile application from anywhere.
- Programmable Schedules: Create custom heating schedules to optimize comfort and energy consumption.
- Bluetooth Installation Wizard: Simplifies the initial setup and pairing process with the mobile app.
- Multiple Control Modes: Supports floor, room, or combination (RF) temperature control.
- Built-in Class A GFCI: Provides essential safety protection for wet environments.
- Floor Sensor Included: Comes with a 15-ft floor sensor for accurate floor temperature readings.
- Compatibility: Works with most floor sensors on the market and is compatible with Google Home and Amazon Alexa.
3. Installation
The installation of the Stelpro Concerto Smart Thermostat involves electrical wiring and should only be performed by a qualified electrician. Refer to the detailed wiring diagrams provided in the separate installation guide that accompanies the product packaging.
Installation Steps (Overview):
- Power Disconnection: Turn off power to the heating circuit at the main electrical panel.
- Mounting: Mount the thermostat to a standard electrical box.
- Wiring: Connect the electrical wires according to the provided wiring diagram. Ensure all connections are secure.
- Floor Sensor Installation: Route the 15-ft floor sensor cable to the heating mat area and position the sensor correctly within the floor.
- Final Assembly: Secure the thermostat cover and restore power.
Note: Detailed wiring instructions and safety precautions are critical for proper installation. Consult the dedicated installation manual for comprehensive guidance.
4. Initial Setup and App Connectivity
After successful installation, the thermostat can be configured and controlled via the Stelpro mobile application. The Bluetooth installation wizard simplifies the initial pairing process.
4.1 Downloading the App
The Stelpro mobile application is available for both Android and iOS devices. Search for "Stelpro" in your device's app store.

Figure 4.1: The Stelpro app is compatible with both Android and iOS operating systems, allowing broad accessibility for users.

Figure 4.2: A visual representation of the user-friendly mobile application, displaying various room temperature controls and scheduling options.
4.2 Bluetooth Pairing and Wi-Fi Connection
- Ensure Bluetooth is enabled on your smartphone.
- Open the Stelpro app and follow the on-screen prompts to add a new device.
- The app will use Bluetooth to discover your thermostat.
- Once discovered, you will be guided through connecting the thermostat to your home Wi-Fi network. Enter your Wi-Fi credentials when prompted.
- After successful Wi-Fi connection, the thermostat will be accessible remotely via the app.
Tip: If you experience difficulty pairing, ensure your phone is close to the thermostat and that your Wi-Fi network is active and has a strong signal.
5. Operating Instructions
The Stelpro Concerto Smart Thermostat offers both manual control via its interface and comprehensive control through the mobile application.
5.1 Manual Control (On-Device)

Figure 5.1: A close-up of a finger interacting with the thermostat's touch-sensitive up arrow, illustrating simple manual temperature adjustment.
- Adjusting Temperature: Use the Up (^) and Down (v) arrows on the thermostat's display to manually increase or decrease the setpoint temperature.
- Power Button: Press the circular power button at the bottom to turn the heating system on or off.
- Display: The digital display shows the current temperature and Wi-Fi status.
5.2 App Control and Advanced Features
The mobile app unlocks the full potential of your Concerto Smart Thermostat, allowing for remote management and advanced programming.
- Remote Temperature Adjustment: Change the setpoint temperature from anywhere using the app.
- Scheduling: Create daily or weekly heating schedules to automatically adjust temperatures based on your routine. This feature helps save energy.
- Energy Monitoring: Track your heating system's energy consumption directly from the app.
- Control Modes: Select between floor, room, or combination (RF) control modes to suit your preference. The combination mode uses both the floor sensor and ambient room temperature for optimal comfort.
- Maximum Temperature Setting: Set a maximum floor temperature to protect sensitive flooring materials and ensure user safety.
- Voice Assistant Integration: Control your thermostat using voice commands through compatible devices like Google Home and Amazon Alexa.
6. Maintenance
The Stelpro Concerto Smart Thermostat requires minimal maintenance to ensure optimal performance and longevity.
- Cleaning: Gently wipe the thermostat's surface with a soft, damp cloth. Do not use abrasive cleaners, solvents, or chemical sprays, as these can damage the finish or internal components.
- GFCI Test: Periodically test the built-in GFCI by pressing the "Test" button on the thermostat. The circuit should trip, and the test light should illuminate. Reset the GFCI by pressing the "Reset" button. If it does not trip or reset, contact a qualified electrician.
- Firmware Updates: Ensure your mobile app and thermostat firmware are up-to-date to benefit from the latest features and improvements. Updates are typically managed through the app.
7. Troubleshooting
If you encounter issues with your Stelpro Concerto Smart Thermostat, refer to the following common troubleshooting steps:
| Problem | Possible Cause | Solution |
|---|---|---|
| Thermostat not powering on. | No power supply; tripped circuit breaker; incorrect wiring. | Check the circuit breaker. Ensure power is restored. Verify wiring connections (consult an electrician if unsure). |
| Cannot connect to Wi-Fi or app. | Incorrect Wi-Fi password; weak Wi-Fi signal; Bluetooth pairing issue; app glitch. | Double-check Wi-Fi password. Move closer to your Wi-Fi router. Restart your phone and the thermostat (by cycling power). Re-attempt Bluetooth pairing. Ensure app is updated. |
| Floor not heating or uneven heating. | Incorrect temperature setting; floor sensor issue; heating element malfunction. | Verify the setpoint temperature. Check floor sensor connection. If the issue persists, contact a qualified technician. |
| GFCI trips frequently. | Ground fault detected; wiring issue; faulty heating element. | This indicates a serious electrical issue. Immediately contact a qualified electrician for diagnosis and repair. Do not bypass the GFCI. |
For issues not covered here, or if troubleshooting steps do not resolve the problem, please contact Stelpro customer support.
8. Specifications

Figure 8.1: Detailed dimensions of the Stelpro Concerto Smart Thermostat, indicating its height, width, and depth in both inches and millimeters.
| Attribute | Detail |
|---|---|
| Brand | Stelpro |
| Model Name | Concerto Smart |
| Product Dimensions | 4.4D x 7.9W x 12.7H Centimetres (4.4 x 7.85 x 12.65 cm; 300 g) |
| Item Weight | 300 g |
| Material | Plastic |
| Colour | White |
| Connectivity Technology | Bluetooth, Wi-Fi |
| Special Features | Dimmable, Lighted, Programmable, Temperature Display |
| Included Components | Floor sensor (15-ft) |
| Voltage Compatibility | 120V/208V/240V |
| GFCI Type | Class A |
9. Warranty and Support
9.1 Warranty Information
The Stelpro Concerto Smart Thermostat is backed by a 3-year warranty from the date of purchase. This warranty covers defects in material and workmanship under normal use and service. Please retain your proof of purchase for warranty claims.
The warranty does not cover damage resulting from improper installation, misuse, abuse, unauthorized modifications, or acts of nature.
9.2 Customer Support
For technical assistance, troubleshooting beyond this manual, or warranty inquiries, please contact Stelpro customer support. Visit the official Stelpro website for the most up-to-date contact information, FAQs, and additional resources.
Stelpro Official Website: www.stelpro.com





