Heatmiser Slimline-E V3 – Programmable Thermostat for Electric Underfloor Heating

Heatmiser Slimline-E V3 – Programmable Thermostat for Electric Underfloor Heating

• The Heatmiser Slimline-E V3 is a feature-rich thermostat designed specifically for electric underfloor heating systems. With a high-capacity 16A switching relay (3,680W) and versatile control modes, it offers precise temperature regulation and energy efficiency for modern homes.

Whether you're installing in a bathroom, conservatory, or living area, the Slimline-E V3 adapts to your needs with programmable scheduling, multiple sensing options, and a slim, modern design.

🔹 Key Features:

✅ Designed for Electric Underfloor Heating
Compatible with systems up to 16A / 3,680W, making it ideal for electric floor heating installations.

✅ Multiple Sensor Modes for Custom Control
Choose from:

• • Floor sensor only – Great for floor surface control (e.g., conservatories).
  • Air + Floor sensor – Controls air temperature and prevents floor overheating.
  • Remote Air + Floor – Ideal for bathrooms or where thermostat location needs flexibility.

✅ Flexible Scheduling Options

• • Non-programmable mode
  • 5/2-day (weekday/weekend)
  • 7-day (individual settings for each day)
  • Same settings for all days

✅ Additional Features:

• Thermostat or Timer mode
• Temperature hold & holiday modes
• Celsius/Fahrenheit selectable
• Frost protection (with adjustable setting)
• Key lock for tamper prevention
• Self-learning Optimum Start (on levels 1 & 3)
• White backlight (auto-off after 30 seconds)

🔧 Technical Specifications:

• Supply Voltage: 230V AC
• Load Capacity: 16A / 3,680W
• Floor Sensor: 3m remote probe included
• Mounting: Wall-mounted (standard UK single back box)
• Dimensions: 98mm (H) x 85mm (W) x 13mm (D after installation)
• Weight: 195g
• Sensor Installation Tip: Always install the probe inside a flexible conduit for easy replacement. (Conduit not included)

🔄 Compatible Heating Types:

• Electric underfloor heating systems
• Electric radiators or panel heaters (when using built-in air sensor mode)

Click for: Product Installation & Data Sheet

🔹 FAQs for Heatmiser Slimline-E V3

1. What is the Heatmiser Slimline-E V3 used for?

It’s a programmable thermostat designed to control electric underfloor heating systems, offering precise temperature and schedule management.

2. Is it compatible with all electric underfloor heating systems?

Yes, it works with most electric floor heating systems, provided they do not exceed the thermostat’s load rating (typically 16A / 3600W).

3. Does it have a built-in timer or schedule?

Yes, the Slimline-E V3 offers 5/2-day or 7-day programming with 4 heating periods per day, giving you full control over your heating schedule.

4. Can it control floor temperature using a sensor?

Yes, it includes a floor sensor probe, allowing you to control temperature based on floor temp, air temp, or a combination of both.

5. Does the thermostat have a backlit display?

Yes, it features a large, easy-to-read backlit display, ideal for visibility in all lighting conditions.