The winningest man in BBQ has a new smoking book out aimed at the home smoker, i'm not won over by the style but there are some great recipes and it covers most of the low and slow bases... Smokin' with Myron Mixon Backyard 'Cue Made Simple
Quick tip please. About to take the food off the BBQ and its about to chuck it down with rain. Do I close all the vents or leave any open. It's too hot for the cover.
Doh hopefully its not too chipped! Mines been left in the rain with the vents open lots of times and didn't cause any issues other than making the grill more of a pain.
Unfortunately IIRC it's a vitreous enamel that's baked on at around 800 deg C. I doubt there's an easy repair If there is exposed steel you could try a high temperature paint, but it would be more of a bodge than a fix