I have been searching, and may have missed, but I'm looking to answer a question for a new brew sculpture i'm building to fit in a custom space in my new home. It will look similar but smaller than the one at the link below.
A friend of mine is going to help me get 2" steel tubing and do the welding and cutting. Gonna plumb it into the NG line of the house cause it will be right near the furnace (same room, properly vented of course). My question is, what is a good material to support the boil kettle and HLT? I'm gonna do 5 gallon batches max (space issue mostly), so I'm building it to fit 14" 8 gallon kettles. I'm afraid of just setting them on the steel and heating directly, and would rather use something like a ceramic grill grate if possible. But I'm striking out on finding something that would work. Sizing would be less than 24" square, and I figure the weight for each would be about 75 lbs. Mostly, I just don't want to transfer heat into the frame, so I need to isolate it to the grill or grate that it will be sitting on as best possible.
Thoughts? How best to do this?