It is almost like spring today, 30 degrees! But since I had time and had already bought the water heater blanket I decided to finally take the time to make a WSM wrap for the 22.5 and the 14.5.and my MINI-WSM What I did was to figure out the length of the blanket needed and cut it off NATURALLY I cut it 3 inches too short, but I will say that was on purpose because when wrapped it, it was about 4 inches from closing so I put a piece of tape that would act like a latch. That also allows me to have the wires from the probes easily come through, at least that is what I am saying. What I did for the 14.5 was to fold it in half length wise and tape it. It is just the right height to protect and wrap the 14.5 and still allow easy access to the top. for the 22.5 I folded down 1/4 of the wrap making a wrap about 3 feet tall so again it gives easy access to the top. for the 22.5 I cut a 82 inch long piece. For this cook I wasn't using the lower grate so put my temp probe there for the BBQ temp. I am doing a 4 pound pork butt on the 14.5 I think I started with too many lit coals for the temp of the day as it has been running about 270 with 2 vents totally closed and the third one closed 80%, but the Patriots game is at 3 pm and the butt went on at 11 am and should be done about 3 pm.