The John Guest Speedfit JGWC4 is a 240V wiring centre for centralising underfloor heating connections. It provides eight zone connections and hard-wired terminals for zone valves, actuators, the pump and room thermostats. The clearly labelled circuit board supports easier mounting and wiring, while front-accessible functions simplify installation and servicing. LED indicators show the status of the power supply, thermostats, pump, boiler and hot water. Dip switches on the eight standard zones help manage systems combining radiators and underfloor heating. Connections are also provided for hot water and central heating zone valves. When used with the JG Underfloor Controls gateway and app, the system can be controlled remotely. Manage up to four heating circuits from one thermostat for streamlined zone control. LED status indicators show power, thermostat, pump, boiler and hot water activity at a glance. Dip switches on all eight standard zones help prevent the underfloor heating pump from activating when radiators and underfloor heating are used together. Front-accessible controls simplify installation and servicing, with no additional internal link wiring required. Dedicated connections support hot water and central heating zone valves. An eight-zone junction box brings underfloor heating wiring together in one central unit. A clearly labelled circuit board supports straightforward mounting and wiring. Pair with the JG Underfloor Controls gateway and app to control underfloor heating and hot water remotely.