Okay. I found it. It's in the manual. They admit that with 'sugar snow' the construction is difficult at best but 'can be done'...not super encouraging IMO.

There is also a blurb in the beginning about testing the snow by squeezing it between your hands. I wonder how they determine that heat from your hands isn't what's causing the snow to bind.

I believe their theory is that the pressure from the packing of the snow melts the particles slightly enough for them to bond. It's a sound theory...that's how ice skates work after all. But when it's really cold and really dry and the snow just right, I'm not sure I'd trust my life to this gizmo.

Definately could be fun if you had kids around. Assuming you could keep them distracted for 3 hours while you build the Igloo

I wouldn't recommend the ICEBOX as someone's only winter shelter plan but if they were or expected to be in an area with snow, it would make a dandy backup or even primary shelter because of the insulating properties if they expected to stay in one place for several days or weeks. I believe it would also be a worthwhile investment for a car E-kit in blizzard prone areas.

I don't get enough snow around here for doing that sort of thing. I just get bitter cold and ice on everything. As a matter of fact, this last winter I slipped on some ice and cracked my ribs.

I'm super sensitive to cold, and y'all can laugh if you want, but I'm not going outside in winter without my huge sleeping bag.

"...if you had kids around. Assuming you could keep them distracted for 3 hours..."

Maybe make them the shovelers, rotating of course...