I'm not being rude here......have you installed a IAQ stat yet?
Nope, not familiar with it hence my questions and not wishing to get into a discussion on the merits of each since I have zero experience with the IAQ. I was simply concentrating on the 8000 which I am familiar with and asking you to fill in the blanks.
Separate wire? The OD sensor actually requires two wires... not even aware of any that use just one wire. As far as a more aggressive recovery goes... why? It'd be less energy efficient than allowing the thermostat to utilize the heatpump for recovery.
that is the million dollar question
why would anyone want to use the fossil fuel to recover?
unless its below 15 degrees outside,
or, unless you lived in Iran where gas is 5 cents a gallon
why would anyone want to use the fossil fuel to recover?.
Here is the reason I want to recover with fossil fuel. Right now, my HP is set to run 15 degrees and above. It does maintain at those levels. However, to recover by 6am, the adaptive recovery starts the HP at around 4am when OD temps are in the 15-25 range. So the HP is blowing heated air for 2 hours bringing the temp up from 63 to 67. I would prefer a shorter recovery period so that it is indeed cooler while I sleep. My guess is that the gas backup could recover in 30 minutes under the same circumstances. Since I have an IAQ installed, I was hoping I could do that.
I did try the settings that Puff-noeyebrows suggested, but I think the IAQ doesn't use the 2 degree droop feature on recovery.