So I decided to try my PBC as a paella grill with mixed results, mostly on the poor side. 
I set my PBC up just as I would for any cook, but added in the grate. I let the coals set for about 15 minutes with the lid on after pouring in the lit ones. With the rebars in, I took the lid off and set the paella pan on top of the bars. I also had my Maverick ET733 probes set inside the PBC, one on the grate, one across the rebars. For the rest of the cook, the lid was off and the pan was on top.
Immediately I noticed about a 40-50 degree difference between the grate temp and the rebar temp, with the grate being higher. The grate was running around 260-280, with the rebar running aroung 220-230. While that was hot enough to cook the chicken and chorizo, it wasn't hot enough for a true saute', so each stage took longer than they should have. The temps held in that range for about two to three hours (again, the whole process took longer than it should have).
At the three hour mark, right around the time I added the rice and liquid, the temperatures started to drop pretty quickly. From the three hour mark to the three and a half hour mark, the grate temp dropped steadily to around 230, and the rebar temp dropped into the 190's. Definitely not hot enough to bring the liquid to a boil. At that point I moved the pan to my gas grill and finished the paella off there.
The paella itself was delicious, but it took over three and a half hours to cook. For the future I will NOT cook a paella on the PBC again. Also, I found it interesting, and it makes sense, that the coals started to burn off and lose heat at about the three hour mark. With the lid off, that's a lot of oxygen feeding the coals. I've included some photos below.

Prepped for Paella

Chicken and Chorizo

Shrimp, Mussels and White Fish

Veggies

All Together with Rice and Broth

Finished Paella

I set my PBC up just as I would for any cook, but added in the grate. I let the coals set for about 15 minutes with the lid on after pouring in the lit ones. With the rebars in, I took the lid off and set the paella pan on top of the bars. I also had my Maverick ET733 probes set inside the PBC, one on the grate, one across the rebars. For the rest of the cook, the lid was off and the pan was on top.
Immediately I noticed about a 40-50 degree difference between the grate temp and the rebar temp, with the grate being higher. The grate was running around 260-280, with the rebar running aroung 220-230. While that was hot enough to cook the chicken and chorizo, it wasn't hot enough for a true saute', so each stage took longer than they should have. The temps held in that range for about two to three hours (again, the whole process took longer than it should have).
At the three hour mark, right around the time I added the rice and liquid, the temperatures started to drop pretty quickly. From the three hour mark to the three and a half hour mark, the grate temp dropped steadily to around 230, and the rebar temp dropped into the 190's. Definitely not hot enough to bring the liquid to a boil. At that point I moved the pan to my gas grill and finished the paella off there.
The paella itself was delicious, but it took over three and a half hours to cook. For the future I will NOT cook a paella on the PBC again. Also, I found it interesting, and it makes sense, that the coals started to burn off and lose heat at about the three hour mark. With the lid off, that's a lot of oxygen feeding the coals. I've included some photos below.
Prepped for Paella
Chicken and Chorizo
Shrimp, Mussels and White Fish
Veggies
All Together with Rice and Broth
Finished Paella
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