Heatmiser UH8-RF v2 - 8 Zone Wireless Wiring CentreHeatmiser UH8 RF v2 8 Zone Wireless Wiring Centre The Heatmiser UH8 RF v2 is our 8 Zone wireless wiring centre designed to work with our Slimline RF v3 and neoAir v3 Thermostats. The UH8 RF v2 provides central switching and is therefore ideally situated next to the underfloor heating manifold. 8 zones can be controlled as well as providing an output for a hot water cylinder. On demand from any zone, a 230v output is provided to switch the relevant