The Heatmiser UH4 Wiring Centre is a compact control hub for underfloor heating systems, designed to manage up to four heating zones. It's ideally suited for smaller installations or properties with fewer zones, offering centralised control and reliable system integration.
The UH4 provides 230V outputs for zone actuators and includes dedicated connections for a domestic hot water cylinder, system boiler, and pump. It also features the flexibility to control a single radiator zone, making it suitable for mixed heating environments. The UH4 is compatible with mains voltage thermostats, offering a wide range of setup options.
Compatible Thermostats:
DS1 V2 | Slimline-RF | NeoStat V2 White / Black / Platinum | NeoStat WiFi – White / Black | Fastwarm Smart WiFi 2.0 – Black / White
Whether you're planning a compact heating setup or need an efficient control option for smaller properties, the UH4 delivers essential features in a space-saving design. Key functionality includes:
- 4-Zone Control – Ideal for small-scale underfloor heating systems or single radiator zones.
- 230V Actuator Outputs – Supports standard actuators for efficient zone control.
- Boiler and Pump Output – Includes wiring for central control of the system boiler and circulation pump.
- Hot Water Cylinder Output – Enables DHW control alongside heating zones.
- Compact Form Factor – 384mm x 148mm x 60mm (LxHxD), perfect for space-conscious installations.
For larger or wireless systems, consider alternative wiring centres like the UH8, UH8-N, UH8-RF, or Fastwarm 10-Zone Wiring Centre.
The UH4 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 UH4.
- On the back of the UH4, position the clip in the middle and slide down.
- Points A and B locate in the corresponding holes and lock into place.
- Locate the UH4 onto the DIN rail from the top.
- Pull the clip down and push the bottom of the UH4 onto the DIN rail.
- Releasing the clip will lock the UH4 in place on the DIN rail.
To remove the UH4, 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.
