One of the things I learned here is the need for a certain stove temp/fire box temp to be reached to allow secondary combustion, and that in a non-catalytic stove that temp is much higher than for cats. Now with regard to secondary combustion in non-cats of two different sizes (and using for example the Jotul Oslo (F500) vs Castine (F400), since those are two of my top choices). Would secondary combustion be achieved sooner in the smaller stove due to a smaller mass needing to have it's temperature raised to operating temps? and more importantly, would the RATE of fuel consumption be PROPORTIONATELY lower for the smaller stove, as it would require less energy to keep the firebox at secondary combustion operating temp? (I know actual fuel consumption is lower) basically can the smaller stove be run more slowly and still maintain secondary combustion? and leave aside for a moment practical considerations such as how much space needs to be heated, or burn length varying due to different firebox volumes. I'm just interested in theory, and trying to understand secondary combustion. I have this view of the Castine burning very low and still getting cat like combustion. Will the Oslo do the same?