Real Arctic
Whether on not to have the artic package depends on how you will use your camper. First, I wish to point out that these aluminum frame campers are not as warm as stick and tin campers. If I were planning to live in a truck camper all winter, I believe I would prefer an S&S hard side camper that is designed for elk hunting, etc. Second choice would be an Alaskan. But, comparisons with other campers is off subject and apples and oranges.
I agree with Jon&Sue. The heater is so good that it provides all the warmth needed for cloths changing, getting up in the morning, etc. The new boot material is thick vinyl covered material which is adequate for most situations. On occasions when the weather was really severe, we have slept with the top down. We have a Keystone and it sleeps well in the down position. This might not be practical with one of the tiny units.
So – evaluating the original question; If I had a unit that was not comfortable or could not be used easily in the down position, and/or I was planning to camp in one spot, stay inside my FWC/ATC camper, read a book and look out at Winter for pleasure, I would want better insulation than comes standard with these campers. Not only would I have a good insulated liner over the boot, I would want heavy drapes covering most of the side walls, plus extra insulation all round. I would want a stronger roof for snow with a bit of crown built into it, better roof insulation and double pane windows. The furnace serves two purposes in really cold weather. It warms the interior, and it dries out the interior which picks up a lot of moisture over a week of so of camping. The interior of the camper should be easily heated with a very small amount of energy in order to dry out the interior every day. Naked aluminum loves condensate. Everywhere an aluminum frame member is in contact with the exterior and interior at the same time, moisture will condense.
Our lightweight aluminum popup campers are fine for well prepared outdoors people, such as cross country skiers. However, these campers were never intended to be real winter campers. The Turtle Expedition people pretty well came to that conclusion and designed and built a true winter truck camper after using a FWC on several expeditions. Living in a FWC/ATC month after month through a Yukon winter would be tough, though I’m not saying it could not be done.