Jay_Swan:
- When the temp is too low, turns on heater, start the low setting on a two speed fan
- When the humidity is too low, start two speed fan at High, humidifier turns on, aux fan stops
- When temp is too high, start two speed fan at high, start aux fan, start humidifier
- When all parameters are within threshold, every hour start aux fan for 5 minutes, then stops
What if both the temp and the humidity are too low? Did you want the fan on low, or on high?
It might be helpful to do this as a nine-cell table. In each cell you may want to specify what you want the heater, humidifier, fan and aux fans to be doing.