Fermwrap on Speidel Fermenter

[jrsdws]

Hey all!! I used the Fermwrap for the first time on my small 12L Speidel with great success. I was worried because it doesn't wrap around the fermenter completely. Now I'm ready to brew and ferment in my regular 30L Speidel and again concerned because the Fermwrap will wrap around even less on the bigger vessel.
I am using this in a deep freeze ferm chamber with Inkbird controller and thermowell.
Are there larger Fermwraps or similar or does it even matter?

 

[Ayzala]

Don't worry, even if you only heat one side the convection in the vessel will move the heat around. Some people put the vessel on a heating pad which only contacts the bottom. You are good to go!