to put them out, I insert a stick and sometimes a piece of cloth in the smoke whole. no it's not stainless, For life expectancy I've heard 2 years on the modle I have in hand - I have had the same one for 10 years. It's showing its use but still usable, I don't fire it up on a daily basis. I see a few smokers laying along side the road every year. I'll keep my older one as spare. It would be nice buy and have them last a life time.