What is the replacement for the UH1 Wiring Centre? November 28, 2018 05:15 Updated Follow The replacement for the UH1 wiring centre is the UH8-N available here https://www.heatmisershop.co.uk/heatmiser-uh8-n-8-zone-12v-wiring-centre/ Related articles I have a UH1-W, will a neoAir or Slimline-RF work with this wiring centre? How do radiator zones on the Heatmiser wiring centres enable the boiler? What is the replacement for the UH3 Wiring Centre? I have a 12v wired Heatmiser Network System (UH1) Can I upgrade to Neo? What does Ls and Lr mean?