The output of a stove is equal to coal burned multiplied by efficiency, so in other words coal in is the magic variable, the amount of air only effects heat out put if you are getting unburned coal due to not enough air.
If you are addressing feed rate with respect to Coal-Trol numbers that is dependent on the scale (min and max numbers). All things being equal you would run the feeder motor less to get the same heat out of the 110K since the grate is wider and more coal moves with each stroke.
I would be interested to hear if anyone is planning to upgrade their stove to the 110K unit.
