can anyone advise if it's possible to change a prog. timer from a 1 channel to a 2 channel? if so, will there be wiring problems? i am considering a honeywell st9400c prog and a cm927 wireless prog thermostat.
current setup is a potterton combi he30 directly connected to honeywell st6100a1001 (1channel) programmer. hot water is instantaneous on-demand. there is no thermometer gauge on the boiler to indicate the temperature.
thinking of replacing the prog with a st9400c and cm927 to control the heating temp. in so doing, how can i ensure hot water on demand? any wiring problems? any advice is greatly appreciated
current setup is a potterton combi he30 directly connected to honeywell st6100a1001 (1channel) programmer. hot water is instantaneous on-demand. there is no thermometer gauge on the boiler to indicate the temperature.
thinking of replacing the prog with a st9400c and cm927 to control the heating temp. in so doing, how can i ensure hot water on demand? any wiring problems? any advice is greatly appreciated