[quote=“larsenj”]I’m looking to upgrade my boil kettle from a 32 qt stainless kettle to a 60 qt one (so I can do full-wort boils of 10 gallon batches). But looking online, I don’t know if the thickness of the kettle is sufficient… measurements like “18/8” at tossed about, but I don’t know what that means.
Can anyone help?[/quote]
Depends on if you want to use your pot upside down to stand on with a horse on your head in between your brew days.
The easiest way to do it is to set yourself a $ amount you want to spend, and move on from there. I spent $125 on my 8 gal pot, 15 gals are much more.
As far as thickness of the steel, it doesn’t really matter, as long as it will keep from bending when you have your wort inside it, which is the basic minimum for a pot.
Perhaps since you are using a propane burner, you may want to consider a clad bottom as it will even out the heat and prevent some scorching.
As far as how big is too big? It depends on the ambient temperature, the amount of wind, and how well you insulate the pot and if you use a lid or not, and the efficiency of the burner.
Using those variables you can calculate the loss do to the environment versus the input from the burner.
Long calculation short, I doubt you will have trouble using your 52000 BTU burner to heat 15 gals on a normal brew day. Perhaps if you were brewing at the north pole you may have problems.