The Heatmiser UH8 Wiring Centre is a versatile 8-zone control unit designed for underfloor heating systems. It supports up to eight heating zones and includes two additional time channel connections for hot water control or other auxiliary devices. Each zone can be assigned to one of the two onboard heating time channels, allowing for flexible scheduling.
When any zone calls for heat, the UH8 provides a 230V output to activate the relevant zone actuators, underfloor heating pump, and valve. A volt-free connection is supplied for the boiler, ensuring compatibility with most boiler types. Zone 8 can be configured for radiator control, which bypasses the underfloor heating pump, valve, and boiler activation.
Compatible Thermostats:
DS1 V2 | Slimline-RF | NeoStat V2 White / Black / Platinum | NeoStat WiFi – White / Black | Fastwarm Smart WiFi 2.0 – Black / White
This wiring centre offers a practical feature set that enhances system control, installation efficiency, and overall compatibility—ideal for a wide range of applications:
- 8-Zone Control – Manage up to eight heating zones with individual time channel assignments.
- 230V Actuator Outputs – Supports up to four actuators per zone.
- Volt-Free Boiler Connection – Ensures compatibility with most boiler systems.
- Radiator Zone Option – Configure Zone 8 for radiator control, bypassing underfloor heating components.
- DIN Rail Mounting – Facilitates neat and professional installation (DIN rail not included).
- Compact Dimensions – 384mm x 148mm x 60mm (LxHxD).
For different system sizes or alternative control options, explore other wiring centres such as the Heatmiser UH8-N, UH8-RF, UH4, or the Fastwarm 10-Zone Wiring Centre.
The UH8 can be mounted directly to a wall using four screws or alternatively, the unit can be DIN rail mounted.
When DIN Rail mounting, you first need to insert the two clips provided on the back of the UH8.
- On the back of the UH8, position the clip in the middle and slide down.
- Points A and B locate in the corresponding holes and lock into place.
- Locate the UH8 onto the DIN rail from the top.
- Pull the clip down and push the bottom of the UH8 onto the DIN rail.
- Releasing the clip will lock the UH8 in place on the DIN rail.
To remove the UH8, pull both clips down and remove from the DIN rail.
Delivery Options
2-3 working day delivery
Next working day
Next working day before 10:30
Saturday Delivery
Delivery cut off times
Our daily cut-off time for dispatch is 4:30pm Monday–Thursday and 4:00pm on Fridays. Orders placed before the cut-off time will be dispatched for next working day delivery (if this option is selected). Orders placed after 4:00pm on Friday will be dispatched on Monday for Tuesday delivery.
Bank holidays may affect these delivery times, so please contact our team if unsure on 01268 744479
Other Delivery Options
PRE-10:30AM and Saturday Delivery services are available, but orders must be placed before the relevant cut-off times.
NOTE: All orders placed on a Friday will be delivered on the following Monday (unless its a bank holiday), unless a Saturday Delivery service is selected and paid for before the 4:00pm Friday cut-off.
Delivery outside the UK
Delivery outside mainland UK may be arranged by prior agreement. You will be advised of the delivery charge before dispatch, at which point you can decide whether you wish to proceed with your order.
Important: Our deliveries rely on third party couriers, so, whilst we make every effort to deliver your order on the specified date and time, unfortunately there may be occasions when this will not be possible due to external influences. Due to this we strongly recommend you ensure you have received your order before any tradespeople/builders are scheduled to commence work.
Still Unsure? Talk to an expert
If you need any guidance or further information our highly experienced team are on hand to help.
Get in touch using our contact form or give us a call on 0800 023 4203 or 01268 744 479.
