"Were the tests done without windscreens?"

Yes, and all were done indoors. At this point I'm still trying to elimnate as many variables as I can. Plus, I wanted to see how the flames behaved and I can't do that with a windscreen in place.

Some of my future plans are to decide on a stove, and then test with all the windscreens I have...maybe using a fan of some kind to keep the wind variable as constant between tests as possible.