Originally Posted by ButtBurner
I have an old metal baking pan that I put over the wood heating on the fiorebox lid, it holds the heat in well in the winter time
Well there ya go! Earl's configuration is a bit different than most traditional offsets, so I never had to hunt for a method to help retain the heat when preheating splits.
On Earl, I have a solid plate in my grill-top area under the firebox lid when I am just gonna be smoking and I put them under the lid on that plate. If I'm not using the plate and have the grill-top grate in place, I stick them off to one side of the grate under the lid.