The stove does not totally collapse. However the pipes nest into one anther and fit inside the stove box and the legs fold up, making a box about 10" x 10" x 23". It all fits into the smalish dark gray with tan-top plastic box shown in one of the photos along with a bow saw, hatchet and shovel. The whole stove with pipes weighs about 12 lbs or so. See the kni-co stoves website, they have a couple models slighly smaller. Other outfits make stoves that fold up for more than twice the cost, as well as lighter like Titanium goat and kifaru. There are lots of folks making tipi style tents with stove jacks out of silnylon type material, but they are pretty spendy. I got the idea from another website where a guy put a stove jack in a similar shelter design (go-light shangri-la 6+/ 8, which is no longer made.
In the photo you can see 2 cots, 1 regular roll-a-cot along the back, and a wide roll-a-cot along one side forming an "L" shape with the cots. A long roll-a-cot will not fit sideways, but the regular one fits sideways providing plenty of head/foot room for my 6' tall size. Plenty of room for dry bags in there too and a small table, we cooked on the stove top, boils a coffe pot of water (about a liter) in 15 minutes with a medium fire. It takes a surprising small amount of wood to heat it up. We used 3 of those small fire wood bundles you can get at grocery stores and a smallish rubermade tote full of kindling, have fires 3 nightes and one morning.
The heat from a moderate fire will get rid of any condensation in about 10 minutes, it takes about 10 to 15 minutes total from start to finish to build a fire and have it toasty in side.
Not a new idea, horse pack hunters been using wall tents and packer stoves for 100 years.