Originally Posted by Carbon
I hope you meant 3/4" vents. Instead of having three separate vent openings a single 1.5" ball valve should also do the trick. The 1.5" ID vent gives you more intake volume, somewhere close to having four separate smaller vents. I think this approach gives you more latitude from a single vent.
yeah i did mean 3... 3/4" vents..
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?