I have a Franks Piping Boiler in my basement that I bought with very little use twenty years ago. It supplies water through a secondary circuit to my radiant floor through tempering valves. The boiler water is maintained at 180 f. In general it has performed well but sometimes smokes heavily and creosotes my interior lined masonry chimney. The smoke in this rural area bothers only me and I clean my chimney at least three times a year, probably should do more. I would like to do better. I believe that the smoke and creosoting is due to the fact that the intake damper door, controlled by an aquastat and Honeywell controller is either all the way open or totally closed. Roaring fire > 180f > closed. I have just become aware of a Samson controller which I think (never seen one but on a screen) has a more progressive action similar to a bimetallic stove damper. Can someone confirm this? Would the adaptation of this damper controller help my situation. Thanks for any advice on this.