Thermal cap? what does this thing look like? WHY?

[sonoranhope]

I have the Eskimo QF6 and last weekend (the 18-19th of Dec) "tried" to sleep in it on Mille Lacs... I used a double burner Mr.Heater, had 2 small sheets of particle board on the floor, and an army issued cot. It was cold on the floor, hot near the ceiling, and massive amounts of condensation forming/dripping everywhere up there and down the walls. Now I know a fan would circulate the air (and plan on having two 12v fans from now on) and make the temp more even throughout... But, would this "thermal cap" be something that would really help? I cannot find a single picture of it on Google images or elsewhere. I can and do plan on getting one or making my own if you good folks can post a pic or two of it. I have read all the posts about reflectix and may try that also. Just need to rid myself of this condensation problem.

[McGurk]

Reflectix on the entire ceiling and draping down a foot or so on the sides of the long walls will help. As you said, some fans circulating air will be a huge help, too. There is a 7 page thread discussing lots of different mods for the hub-style houses, including adding Refletix, here:

Hub Mods

[Ed Carlson]

The tests that have been done by some of the big players in the shack game show only about 5% or less increase in thermal efficiency on add on roof insulation, or just plain thermal roofs on portables. Most of the heat still will siphon out the walls is what was learned.

Squeeze a balloon, it bulges out in another spot. This proved to be much the same with thermal efficiency and insulation.

So if it's worth it to you to go through the retro-fit process, go for it. Yet I'm not entirely sold it is the way to go, or worth the time and effort if 5% is all one can hope to achieve in efficiency.