Today's the day I start the old CharGriller mods. I'm going to add a water heater burner to the side box, extend the chimney and put in a heat shield. Just got back from Home Depot, got just about everything I need. I still have to find a new orifice for the burner; if I can't find one I'll solder and re-drill the old one. Any other suggestions while I'm at it?