I've caught my smoker on fire twice, and I can personally attest that it is pretty unnerving. First time I panicked and did my best to get the combustibles out (and burned myself and left a nice charred spot in the front yard). Our situations were a little different though. I use a pellet smoker and my fires were a result of over-priming after a flame out. I put a pellet tube (or two) on top of my firebox, and I have learned the tubes will burst into flames when the internal temperature exceeds 400 degrees. The first time it happened, I opened up smoker afterwhich the inside burst into flames. My smoker is next to the house, so this was really concerning.
Second time, I just resolved myself to leave the door closed and basically starved it of oxygen. I sat and watched the show for about 10 minutes (the meat was still ok). In your case, if this happens again, leave the lid on and close the air ports to starve it of oxygen. In all likelihood, it will use up the O2 relatively quickly depending on how well yours is sealed. Grease fire is different, but it also requires oxygen to burn.
As others have stated, start with something smaller than a brisket. I've been smoking for close to 10 years (more frequently in the last 2 years since discovering this forum - you guys are a bad influence on me), and I've only done two briskets. Brisket is a really big job for me.
Most importantly, dont give up. Smoking is an art and a science that takes a good amount of time to perfect, and I learn something new each time I do a big smoke.
Second time, I just resolved myself to leave the door closed and basically starved it of oxygen. I sat and watched the show for about 10 minutes (the meat was still ok). In your case, if this happens again, leave the lid on and close the air ports to starve it of oxygen. In all likelihood, it will use up the O2 relatively quickly depending on how well yours is sealed. Grease fire is different, but it also requires oxygen to burn.
As others have stated, start with something smaller than a brisket. I've been smoking for close to 10 years (more frequently in the last 2 years since discovering this forum - you guys are a bad influence on me), and I've only done two briskets. Brisket is a really big job for me.
Most importantly, dont give up. Smoking is an art and a science that takes a good amount of time to perfect, and I learn something new each time I do a big smoke.