Originally Posted by Hook'n Bull
I have a Safe. It has a slide door for air intake. I use a Guru every time I cook and can control my temp at 230° with no water in the pan. I do have a diffuser plate in the firebox below the water pan. Try this Whiskey...check your slide door, it needs to be really tight. If it is loose take a ball peen hammer and lightly hammer the door "track" inside the firebox against the slide door to "pinch" it down to a really snug fit. You almost need to tap mine with something to adjust it from outside. A really snug fit here will greatly improve your ability to control temp. Jmoney is correct on closing down on the exhaust while running the Guru. I close my down to about 20%. With a full load of lump and wood (about 50/50) I can get temp up to and maintain 230° for 14 hours without adding anything. And yes it produces the thin blue smoke from clean combustion. Good luck.
Thanks....for the suggestions. This afternoo I pulled the guru off completely and preheated the safe with a weed burner (which is just fun). I also filled a 5 gallon buckler full of hot water from the bathtub. I made a ring of lump a round the outer edge of the charcoal basket which had chunks of wood as well and started it at the end. We will see how it all works.