I picked up this Coleman 400 at a garage sale for very few dollars. It looked new. The date stamp says August2003. Without agonizing over it much, I fed the pump cup a drop of oil, fueled it, pressurized it and put a lighter to the burner. It lit immediately and, after the recommended additional pumping, it quickly generated a pretty blue flame. Looking at other postings I got a clue as to why this model is called "Feather 400". Earlier versions weigh in at 28 ounces while this one comes in at 24.5 (they claim 24 on the box). Besides eliminating the cleaning lever they also seem to have switched to a plastic surround at the pump valve. Okay - not a lightweight by today's standards but a compact, easy to use unit for car camping. And morning tea on the patio. It is hot. It only took a couple of minutes at half throttle to bring two cups of water to a rolling boil.