The ashes do not blow at all. The pipe cap has two 1/4" holes facing upward so that it does not blow directly toward the ash pan. You will also need to close the ball valve almost completely to prevent temp spikes when it comes on. This grill is so efficient it takes very little air to maintain temp.
Originally Posted by JS-TX
Pretty cool setup. I've been wanting to do this to my kegs. Do the ashes blow around with the air where you have it installed?