OK SO THEN IT WILL LEAVE THROUGH THE CAP AND INTO THE MYLAR REFLECTIVE BIVY BAG AND MY BODY AND BLANKERS AND SUCH
AND THAT THERMAL MASS OF A GALLON OF BOILING WATER WILL BE LEACHING THAT THERMAL ENERGY UNTIL ROOM TEMP FOR THE ADVERTISED 24 HOURS 

 Probably need some tuning since all the heat is coming out one side. One side will be uncomfortably hot while the other is cold 

 IT SHOULD BE FINE, THEY GIGA NIGGA INSULATE THE CAPS TO COMPENSATE 
SHOULD BE A SMALL TRICKLE OF A HUNDRED BTU OVER AT LEAST 12 HOURS, SHOULD KEEP GOOD
NOT TESTING IT ANYTIME SOON -- GOTTA MAKE SURE THIS JOB WORKS OUT GOOD 

 do the old fire pit bed like they did in Jeremiah Johnson. 

 make a bed of stones in the earth, build fire on top, put fire out, put bedding on top for the night. layer of leaves or whatever to keep the bedding from directly touching the hot stones

not very portable obviously 

 WHEN I OWN LAND I WILL HAVE A HYPOCAUST 

 GIGACAUST 

 Millions must breed 

 @91f2eecf @8858ebc3 @nugger 

There will be a small amount of heat that transfers across the vacuum via black body radiation. Vacuum is not a perfect insulation. 

 THERES A NIGER IN THE THERMOOOOS