Insulating a keg

[evanmcd1]

Hey all, so I have just bought 2 kegs to convert to an HTL and a keggle. I wanted to insulate them to help to keep the heat in so i don't have the water keep raising and lowering in temp. Does anyone have any tips (hopefully i can buy off amazon as i have a gift card )

About my set up: I have a 2 tier brew system with 3 open propane burners, so this can't be flammable and ideally able to be removed so i can take it off when cooling the wort in the kettle.

Any tips or suggestions would be great. I have heard of insulating reflective jackets, but my fear is that they will either melt or catch on fire.

At some point i'll convert all this set up to an electric internal heating element, but for now its an open flame.

 

[RoadKing]

I did THIS Home depot sells a fire proof insulation similar to the mineral wool (I forget the name of it ) and it's a little easier to work with. The only problem is it's $60.00 per batt, which is wayyy more than you'll ever need.

Edit....This is it only $40.00.......... http://www.homedepot.com/p/Roxul-Sa...t-Insulation-RXSS31525/202531875#.UknlHYafgRU