I've got an S plan system with separate valves for the heating and hot water. Since the thermostat has a timer built in, should the main programmer (for the heating and hot water) have two channels?
I'm wondering whether it would be ok to use a single channel programmer to time the hot water and have the heating wired to the programmer's "off" terminal. i.e. when the hot water is on, heating is automatically off. Is this allowed?
I'm wondering whether it would be ok to use a single channel programmer to time the hot water and have the heating wired to the programmer's "off" terminal. i.e. when the hot water is on, heating is automatically off. Is this allowed?