Heatmiser UH8 8 Zone 230V Wiring Centre for Underfloor Heating with Boiler, Pump, Radiator and Hot Water Control
The Heatmiser UH8 230V 8 Zone Wiring Centre delivers complete underfloor heating control with boiler and pump switching, radiator zone override, and hot water integration.
- All prices include VAT
- Estimated Delivery: For most items (over 99% of our products), orders placed before 3pm on working days will be dispatched the same day with our Fast DELIVERY 1st class service. For the rare items not immediately in stock, dispatch may take 1-3 working days after receiving your order. If your order cannot be dispatched the same day, we will notify you via email.
- For boilers: We aim to dispatch on the next working day. However, in some cases, it may take 2-3 working days to dispatch. Rest assured, we will always strive for the fastest possible turnaround.
The Heatmiser UH8 Wiring Centre is a powerful and flexible hub for managing up to 8 individual underfloor heating zones, providing precise control via 230V thermostats. Designed for larger or more complex heating systems, it supports integration with Heatmiser’s TM4 v2 time clock, DS-SB v3 setback thermostat, and a wide range of standard 230V room thermostats.
The UH8 features two onboard heating time channels, allowing each zone to follow an independent schedule. It also includes two auxiliary channels for hot water control or other connected devices. This wiring centre supports actuator switching, boiler and pump control, and features a dedicated radiator zone override via Zone 8, bypassing the underfloor heating pump and boiler for conventional heating.
Each zone supports up to 4 actuators, making it an ideal solution for scalable, reliable multi-zone heating control. The DIN-rail compatible mounting system offers a clean, simple installation.
Key Features
8 Heating Zones – Controls up to 8 independent heating zones
230V Actuator Output – Delivers switched power to zone actuators
Boiler & Pump Control – Volt-free connection compatible with most modern boilers
Hot Water Control – 2 additional time channels for hot water or auxiliary systems
Radiator Zone Override – Zone 8 toggle switch for radiator control without triggering UFH pump or boiler
Actuator Capacity – Each zone supports up to 4 actuator outputs
Thermostat Compatible – Works with all 230V thermostats, including Heatmiser TM4 and DS-SB v3
Clean Installation – Terminal layout and DIN rail mounting simplifies wiring
Applications
Whole-Home Heating Control – Integrate UFH, radiators, hot water into one central unit
Smart Thermostat Wiring – Connect to Heatmiser or third-party 230V thermostats
Zoned Heating Systems – Ideal for new builds or large retrofit installations
Technical Specifications:
| Feature | Details |
|---|---|
| Brand | Heatmiser |
| Model | UH8 8 Zone 230v Wiring Centre |
| No. of Zones | 8 |
| Actuator Output Voltage | 230v |
| Boiler Control | Yes, Volt-Free |
| Pump Control | Yes |
| Radiator Control | Yes, via Zone 8 |
| Hot Water Control | Yes |
| Dimensions (L x H x D) | 384 x 148 x 60mm |
Heatmiser UH8-N 12V 8 Zone Wiring Centre for Underfloor Heating with Hot Water Output and Low Voltage Thermostat Support 
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