I picked up a Demo EGG last Saturday at the SoCal EGGFEST. I keep on learning about the EGG from here and the EGGFESTS. So now I am "playing" with the new EGG and there is going to be a learning curve on this EGG.
From what I understand, the Lower Vent is the Intake and the Upper Vent is the Exhaust. From Grandpas Grub diagrams on the openings of Lower and Upper Vents for certain Temperatures, the opening on the Lower Vent is about 1/4 of an inch and the Upper Vent is opened to get a specific Temp. By doing so, does that mean air is coming from the TOP ? Wouldn't be easier to open the bottom to get more air to raise the Temp as it would be to close the vent to lower the Temp. How does the Upper Vent work in relation to the Lower Vent ?
Any help in understanding all this would be helpful.