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Heatmiser Slimline V4 Digital Programmable Thermostat
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Heatmiser Slimline Thermostat v4
Product Overview
The Heatmiser Slimline Thermostat v4 is a versatile, flush-mounted programmable thermostat designed for precise control of hydronic underfloor heating and central heating systems. Combining a large, easy-to-read LCD display with flexible scheduling and multiple operating modes, the Slimline v4 is an ideal choice for both domestic and commercial multi-zone installations.
Key Features
- Programmable or non-programmable: Can be set as non-programmable, 5/2 day, 7 day, or 24-hour schedules
- Thermostat and timer modes: Selectable in software for maximum flexibility
- Up to 4 comfort levels per day: Easily schedule different temperatures throughout the day
- Self-learning Optimum Start: Learns pre-heat times for improved efficiency
- Remote air sensor facility: Supports remote air or floor sensor (optional, not included)
- Temperature sense modes: Built-in air sensor or remote sensing mode
- Temperature hold facility: Temporary override for set periods
- Holiday mode: Suspends normal programming for specified duration
- Key lock function: Prevents unauthorised changes
- Frost protection: Built-in safeguard against low temperatures
- Large backlit display: White LED backlight automatically turns off after 30 seconds
- Flush mounting: Fits standard 35mm deep back box
- C/F selectable: Display temperature in Celsius or Fahrenheit
Technical Specifications
| Power supply | 230V AC |
| Switching capacity | 3A resistive |
| Temperature range | 5–35°C |
| Dimensions (L x H x D) | 99 x 86 x 15 mm |
| Mounting | Flush (requires 35mm back box) |
| Display | Large LCD, white backlight |
| IP rating | IP20 |
| Warranty | 2 years manufacturer’s warranty |
Applications
- Hydronic underfloor heating systems
- Multi-zone central heating
- Suitable for homes, offices, and commercial buildings requiring zone control
Box Contents
- Heatmiser Slimline Thermostat v4
- Fixing screws
- Mounting plate
- Installation manual
Note: Remote air or floor sensor is optional and sold separately. Not suitable for electric underfloor heating control. No Wi-Fi or app connectivity.
- Type Water Thermostats
- Vendor Heatmiser
- SKU SLIMLINEV4
BTU & WATT Calculator
Room Dimensions
Room Type
Living Room
Bedroom
Kitchen
Bathroom
Conservatory
Hallway
Glazing Type
Single Glazed
Double Glazed
Triple Glazed
External Walls
0 Wall
1 Wall
2 Walls
3 Walls
4 Walls
Insulation Level
Poor
Average
Good (New Build)
Required Heating
0
Watts
0
BTUs
