Heatmiser Slimline-E Programmable Thermostat V3

The Heatmiser Slimline-E Programmable Thermostat V3 is a high-performance thermostat specifically designed for electric underfloor heating systems. With compatibility for all electric floor heating systems up to 16A, it ensures precise temperature control, energy efficiency, and ease of use.

• Smart Self-Learning Preheat: The optimum start function calculates the required heat-up time, ensuring your home reaches the desired temperature exactly when needed.
• Temperature Hold Function: Set a custom temperature for a specific duration—once the time expires, the thermostat automatically returns to its regular schedule.
• Key Locking for Security: The built-in key lock feature prevents unauthorised adjustments, keeping your heating settings secure and tamper-proof.
• Flexible Programming Options: Choose from three programming modes:
  • Non-programmable mode for manual control
  • 5/2 day mode for weekday and weekend scheduling
  • 7-day mode for fully customisable daily programming
• Blue Backlit Display: The sleek blue backlight ensures easy readability while automatically turning off when not in use, conserving energy.
• Holiday Mode for Energy Efficiency: Set a specific temperature while you're away, preventing unnecessary heating and ensuring cost savings.
• Celsius & Fahrenheit Selectable: Easily switch between °C and °F to match your preferred measurement system.
• Built-in Frost Protection: The adjustable frost protection setting prevents freezing temperatures, safeguarding your underfloor heating system.
• 16A Switch Rating: With a robust 16A (3,680W) switch rating, the Slimline-E can handle high-power electric heating loads with ease.
• Floor Sensor for Precision Control: The included floor sensor provides accurate temperature monitoring, ensuring consistent and efficient heating performance.
• Multiple Sensor Modes: Select from three sensor options for customised temperature regulation:
  • Floor sensor only
  • Air sensor only
  • Floor & air sensor combination

1. Separate the Thermostat Front Panel: Use a small flat-head screwdriver to gently detach the front panel from the backplate via the slots on the bottom face.
2. Secure the Backplate: Mount the backplate securely into the back box using the provided screws.
3. Connect the Wiring: Follow the wiring diagram for correct termination of the thermostat connections.
4. Reattach the Thermostat Panel: Clip the front panel back onto the backplate, ensuring a secure fit.

• Do not install near direct heat sources, as this may affect temperature readings and performance.
• Do not press hard on the LCD screen, as this may cause damage.

This Slimline Series thermostat is designed for flush mounting and requires a 35mm deep back box to be installed within the wall prior to setup.

The Heatmiser Slimline-E Programmable Thermostat V3 offers intelligent heating control, flexible programming, and energy-saving features—making it the perfect choice for electric underfloor heating systems.