Keggle hot air from the burner melts the insulation

[nexy_sm]

Hi all,

I have a direct fired mash tun made from a beer keg (50 liters). I am using armaflex for insulation, but the problem is when my burners are on, hot air from below is coming through the holes between the keg and its stand (holes that are already present on the keg). This hot air is melting my insulation. Did anybody have a similar issue and what about the solution?

Cheers

 

[IslandLizard]

Close the holes.
Maybe by putting a metal shield inside the bottom skirt or wrapping one around it?

 

[Bobby_M]

Make the insulation removable and remove iy during heating. Either that or use a high temp insulation like mineral wool and add a metal jacket around it.