UH4 Heatmiser System Wiring Diagrams Click on any of the links below for detailed information Slimline Thermostat System - 3 Zones UFH, 1 RAD Zone & HW Control Download Neo Thermostat System - with Combined UH4 and UH8 Wiring Centre Download Neo Thermostat System - with UH4 with Switch Live Download Neo Thermostat System - 4 Zones Underfloor Heating Download Neo Thermostat System - with 2 x Manifolds and 2 x UH4 Wiring Centres Download