mepellet
Minister of Fire
Here is the thread on Hooking up a T-Stat to a Harman Stove.
https://www.hearth.com/talk/threads/harman-with-thermostat.106536/#post-1390087
If you read through it, you may find this answer to your question. Most people set the stove to auto to avoid the 4 blink.
"If the stove is a manual ignition model, or an auto-igniting unit with the selector switch set to manual, the stove will go into the 4-blink status when the thermostat opens (is satisfied) and the stove will go to a minimum burn and stay there until the thermostat closes (calls for heat). When the thermostat closes, the 4 blink status will reset automatically."
Here is a quote from MePellet, why not ask him how it works if you do not know Scott?
Here is a better thread describing the hookup of a skytech thermostat and how it works.
https://www.hearth.com/talk/threads...ive-to-harmans-suggested-method-as-wel.74677/
Don, I think you were missing Scott's point. He is correct. The stove will not RAMP UP or RAMP DOWN. When the dial on the stove is set higher (say 90) than the skytech thermostat setpoint (say 75) and the room temp is lower than both, the stove will essentially go to high fire because it thinks you want to reach the control boards setpoint (90). Then when the room temp reaches the skytech thermostat setpoint, the stove will either shut off if in auto mode, or go down to a maint. burn if in manual mode.
The stove has no way of COMMUNICATING with the skytech thermostat. The skytech thermostat is basically acting as a switch inline with the room sensing probe.