Can anybody tell me if you can buy a 7 Day 2 Channel Programmer for the hot water and heating, such as the Honeywell ST9400C but also with a inbuilt thermostat control so i can program different heating temperatures at different times. I have seen the Honeywell 7 day programable thermostats but am i right in saying these will only do the heating and not the hot water. I want to use this unit instead of my current time control/7day programmer and wall thermostat.