I have an dual fuel system (American Standard Heritage 16 HP, Freedom 80 furnace) and an Honeywell IAQ thermostat.
What I would like to do is have a thermostat or sensor on the 2nd floor so that I can heat or cool the bedroom area to specific temperature at night.
I have looked at having a Honeywell sensor added to the 2nd floor. That seems like the easiest solution. However, the tstat allows either the tstat, the sensor or an average to dictate the temp. But that is part of the setup and not the program, so I would manually have to change the setup each night and I ain't doing that!
So I was wondering if a 2nd IAQ could be added and if either called for heat or cool, the system would respond. Is that possible? And would I have the 2 tstats wired to to 1 EIM or would I need to have 2 IAQ's and 2 EIM's and have both EIM's wired to the furnace?
Or could I have a zone controller installed, but with nothing connected other than the tstats?
Or is there some sort of timed switch I could have installed to switch between the 2 tstats?
Of course this type of set-up would cause cooling in unoccupied areas and is certainly not efficient and a zone system would be the perfect solution. However, comparing the cost of a zone system to this option, the break even is a long, long time!