SpanishCastleAle

Recipes 

This one is 6" tall and fits ball-lock kegs (including installed QDs) on the hump.

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Early brewers were primarily women, mostly because it was deemed a woman's job. Mesopotamian men, of some 3,800 years ago, were obviously complete assclowns and had yet to realize the pleasure of brewing beer.- Beer Advocate

Maltose

Recipes 

would 2" of wood be sufficient for insulation? or would 1" of wood on the outside and 1" insulation behind the collar be more appropriate?

SankePankey

Recipes 

I would use a 2" w/ no insulation if you are mounting to the freezer, and a 1" with rigid foam insulation if you are mounting to lid. I use a mitered tongue and groove 1 X 8 and it works great with the tongue wedged in the slot on the lid where the seal goes. I also just used some screws and large washers to attach the insulation (not glue) so I could replace them if they get moldy.

soup67

Recipes 

How is this collar holding up for you? Anything you would change?

Also curious how you joined the corners.

Thanks.