It goes under the firebowl to protect the outer ceramic. Should be the first thing u put in. I have some minor paint chipping but never called because you only see it upclose. I have contacted customer service twice and both times they were excellent. You will need something else for indirect cooking. I use the kamado Joe heat deflector but there are a lot of options you can look into. Pm me anytime if u need help. Try Googling vision kamado and heat deflector for some useful info.