Originally Posted by soapy_junk
now with using the 1 larger vent.. does that have any impact on the fire since all the air is coming in from one side as apposed to spread out aroudn the bottom?
Absolutely no difference IMO.
Even with the smaller vents once the temperature settles you'll be controlling intake from one single valve only. I don't think it matters which direction the air is coming from, it'll find its way to the rightful coals.
But cost wise, the bigger ball valve and its fittings will be a lot more expensive so that's something to consider also. And also the bit to open up a hole that big.....but there are other ways to get around that.