I've seen you picture and don't quiet get it. (I'm sure its going to be an "I'm an idiot" as soon as I get clarification)
@ the h-stat. Do I connect the red to one black and the white to the other black?
@ the he260a. Do I connect the red to one black and the white to the other white that is leaving the he260 going to the furnace?
Then the other red leaving the he260 is connected to the other black @ the he260a?
@ the furnace. Do I connect the red to the HUM and the white to the Con 24v?
Basically the red wire is making the connections and the white is maintaining the series?
Horrible wiring diagram for clarification:
Thanks again!