I wonder if anyone can help with this question. A customer has asked me to put in a new central heating system, no problem, but hes asked me if his bathroom rads can work independently from the rest of the house. At first I thought about using a three channel programmer and zone valves but this would require a room stat in the bathroom and I've never come accross a stat that met those requirements. so would it possible to fit trv's to the bath rads and rely on them to shut down the flow using the boiler stat. I thought I could run a flow to the rads from a point after the pump but before a three port mid position valve that would operate the rest of the system in the normal way using a twin channel programmer.