Old thread, but still relevant, I don't do winter camping anymore, mostly day hikes so long fires aren't needed, but when I was into period trekking I and a half dozen other guys went out at least a couple of times a month, usually for long weekends (leave on Friday afternoon, come back on Sunday afternoon), we camped from the beginning of April and the season ended when the temps went below freezing, usually late Oct.~ early Dec.
Usually there were three to five of us on any one trek, we dressed in period clothing, made stealth camps, and carried minimal gear, a spare hunting shirt, extra pair of Mocs, some period food staples, a small Mucket (bush pot), powder & ball or shot, a fishing kit, flint & steel, a water flask, a wool blanket, and a small tarp, we usually supplemented our food with fish, a squirrel or two, and a few of the guys were good at foraging edible plants.
Camps were usually planed to be near a pond, lake, or good sized stream where we had water and the possibility of some fishing, tarps were set up in a semi circle around the fire pit which was used for cooking and to keeps the biting bugs at bay, in the colder months we made long fires for cooking and heat, we each stood a shift for fire watch (and look out for Indians that might be sneaking up on us..Grin..) a good long fire stoked a few times during the night will throw allot of heat even in colder weather.
We usually made camp early in the afternoon, two to three hours before sundown, we'd set up our tarps and lay out our blankets, then clear an area for the fire, collect firewood enough to last the night, by then it was time to get the fire started and make supper, the fire started out small, as the coals developed we'd add more wood to the edges of the fire and eventually by dark the fire had grown to about six feet long and a couple of feet wide, then we just kept it going that size with larger diameter limbs and small sized logs.
Building the fire gradually like that helped to control the size of the fire and also used less wood than starting out with a full sized long fire to begin with, in the colder months we did have a base camp that we used that had a log lean to big enough to sleep six people and an established fire pit with a fire reflector made of good sized (5"~ 6" logs), and usually a supply of dried fire wood under a tarp which we resupplied when we used the site.
Shinning times they were.