I have a non AE model of the Quadrafire Mount Vernon and was wondering if there is any way to make adjustments to the amount of air going into the unit. I've read the manual and there seems to be no way to make an adjustment for the air. My Enviro Mini has a slide nob to make the change in air but I have nothing like this on the Quad. I'm going to do a full cleaning of the Quad tonight and thought I would look for the adjustment for the air when its all apart.