I replaced my Duo analog stat with a Honeywell Digital thermostat. Need more info on what swith and how to connect, for hi/low fan speed.
I have both fan wired together now, but wife likes to use low fan speed sometimes for the quietness.
Here is what I did. With this set up I didn't have to cut into the stat housing or epoxy anything...The red button is an spst switch from Radio Shack. I just drilled a hole in the mounting plate of the stat and did the wiring through the back as per moderator Les Adams' directions.