Hi There. I have just managed to hook up my central heating unit to c-bus, but the only way I could do this is solder a 2-core cable to the back of the heater's digital thermostat's on/off button, which happens to be a bellpress. I have taken it back to a relay channel and control it via a group address from some DLT's and also my Wiser unit as a bellpress. The only problem I have is I don't know the status of the heater when away from home, and my wife has a habit of accidentally leaving the heater on once every few weeks. What's the best way I can achieve this? Cheers