Heatmiser UH8-RF V2 Wireless Wiring Centre – 8 Zone Underfloor Heating Controller

The Heatmiser UH8-RF V2 is a wireless 8-zone wiring centre designed for use with Heatmiser Slimline-RF and neoAir thermostats—ideal for electric or water underfloor heating systems.

Positioned next to the underfloor heating manifold, the UH8-RF offers central control for up to 8 heating zones and a dedicated output for a hot water cylinder. It provides 230V outputs to activate zone actuators, the underfloor heating pump, and valve. A volt-free boiler output ensures compatibility with most boiler systems.

For full wireless integration, the UH8-RF can send the boiler signal via RF to the optional Heatmiser RF Switch—perfect for installations where running cables isn’t practical.

Each zone supports up to 6 actuators, and the unit includes smart software settings to distinguish between underfloor heating and radiator zones, optimising energy usage and avoiding unnecessary pump/boiler operation.

Key Features:

• Controls up to 8 heating zones
• Works with Heatmiser Slimline-RF & neoAir thermostats
• Central wiring hub for underfloor heating systems
• 230V actuator outputs (up to 6 per zone)
• Supports radiator and underfloor heating zones
• Wireless boiler link via RF Switch (optional)
• Dedicated hot water cylinder output
• Wireless fail-safe function
• DIN rail mounting option
• External aerial available for signal boost
• Dimensions: 384 × 148 × 60mm

Ideal For:

• Multi-zone heating systems
• Retrofit or wireless installations
• Projects requiring flexible control of radiators and UFH
• Integrating hot water and heating in one central location

Click for: Product Installation & Data Sheet

Frequently Asked Questions

• What is the Heatmiser UH8-RF used for?

The UH8-RF is a wireless 8-zone wiring centre designed to work with RF (radio frequency) wireless thermostats, such as the neoAir or Slimline-RF. It controls both underfloor heating and, optionally, radiator zones or hot water.

• How many zones does the UH8-RF support?

The UH8-RF supports up to 8 heating zones, with 1 thermostat per zone. It also has a dedicated output for a hot water cylinder or time channel.

• Which thermostats are compatible with the UH8-RF?

Compatible wireless thermostats include:

• • neoAir (when paired with a Heatmiser RF switch or NeoHub)
  • Slimline-RF

These must be paired directly with the UH8-RF.

Does the UH8-RF control actuators?

Yes. Each of the 8 zones can control electrothermic actuators (typically 230V), allowing one or more actuators per zone. Each zone has a corresponding output terminal.

• Can I control the system via smartphone or app?

Yes – if you integrate the UH8-RF system with the neoHub, you'll gain remote control via the Heatmiser Neo app (iOS & Android), including Alexa and Google Assistant compatibility.

• Is it truly wireless, or does it require any cabling?

The thermostats communicate wirelessly with the UH8-RF, but the UH8-RF itself is a mains-powered unit and still requires cabling to connect to:

• • Actuators (underfloor manifold)
  • Boiler/heat source
  • Pump
  • Hot water valve (if applicable)

So it is wireless for control, but wired for power and outputs.

• Can I use it to control the boiler or pump?

Yes, the UH8-RF features a volt-free boiler enable output and a pump delay function, ensuring the pump only runs when needed.