If I install a remote thermostat on a USC6041 what heat range setting should I start at? As the stove begins to bring the room up to set temperature will the feed rate / heat range setting change to compensate? If so will it show on the digital readout on the control board?

I am new to the board but have been following it for the last 3 years. Is anyone making their own pellets (wood or biomass) to use in their stoves? I have been making my own biomass pellets from cardboard, leaves, and even dried manure. Have a USC 6041 and still trying to get it dialed in after 3 years. Any ideas for keeping the 3"pel vent from filling with ash after 2 1/2-3 days use? I'm sure this is a result of the homemade pellets but still trying to cut down on frequent cleaning of the flue.