Flatcatgear Jon Fong has just done a few efficiency tests of stoves with and without his new windshields, in no wind and measured wind. Here is the video, and a screenshot of results Always surprised when I see gas users not using a windshield of some sort. As I knew that wind increases boil times, and therefore fuel use. But didn't think it was to this extent with such a small amount of wind. Looks like a screen is well worth it.