I have a field report from my first use on my family heirloom. I picked this up on the West coast this summer while helping my grandmother clean her garage after my grandfather passed away. I last ate from this stove in 1985 or so in Lassen National Park. I took it out this weekend. It is a 413E with factory propane. I had a small propane bottle in the garage and I got 4 cooks out of it plus coffee and warming dish water. I was curious what kind of fuel consumption the stove had. I was impressed. The stove did great and I look forward to many more meals. It handled 2 pans nicely