Well i shall see how hot a 40hr heat pack gets in a 83f room.
Says it will peak at 115 but settle down to a max of 100 surface temp. If it can not reach that in a 83f room then 72hr heat packs are rated differently.
Start time 10:45am est
Once full temps are reached from heat pack i will assemble a box and keep it in the snake room and see temps then.