I have a Sims, a 4-dog and a cylinder stove and have used them all. Last hunting camp I used the 4 Dog and it did a great job, though my wood wasn't the best. My tent is a 12X16X5 and it did a good job. The Sims is a good stove that has lots of air leaks as it is collapsable unit. I don't fold mine up and took some stove cement and sealed the cracks which lasted a few years, need to do it again. I do have to get up a couple of time to keep the Sims going, but it will warm a 12X14 ok. Last tent I used it in was a 10X10 and I had to keep the windows part open, but it didn't get any colder than freezing all night. DP
Handi's:22Shot, 22LR, 2-22Mag, 22Hornet, 5-223, 2-357Max, 44 mag, 2-45LC, 7-30 Waters, 7mm-08, 280, 25-06, 30-30, 30-30AI, 444Marlin, 45-70, AND 2-38-55s, 158 Topper 22 Hornet/20ga. combo; Levers-Marlins:Two 357's, 44 mag, 4-30-30s, RC-Glenfields 36G-30A & XLR, 3-35 Rem, M-375, 2-444P's, 444SS, 308 MX, 338Marlin MXLR, 38-55 CB, 45-70 GS, XS7 22-250 and 7mm08; BLR's:7mm08, 358Win; Rossi: 3-357mag, 44mag, 2-454 Casull; Winchesters: 7-30 Waters, 45Colt Trapper; Bolt actions, too many; 22's, way too many. Who says it's an addiction?