I started this thread for Amy, and anyone else interested in it, since we hijacked the "1mm" thread, and now it will have its own.
I got that
Max Burton 6000 that CI rated a best buy a few years ago, and have had no problems with it. Unlike the one Paul has, this one definitely has more than three levels - 10 listed, and while I can't say for sure about the highest ones, the lower ones change immediately when I switch from 1 to 2, 2 to 3, and so on, and they don't pulse to get the lower levels - I see the simmering constantly. I must say that I don't use it for searing meat - that I do on my gas burners, as the heat seems to be more in the center in large pans, but it does have a high output. I tested it when I first got it, and boiled 1 gal of water in my pasta pot, and it boiled in just over 14 min. I could boil it that fast on my 20k burners in the same pot, but only with the heat turned up to a point where the gas was coming up the sides of the pot about 2" - still not max, but not as high as I turn it, and it takes just under 16 min., with the burners turned up to wehre the gas is just coming up the edges. So the high heat is definitely high! As for simmering, this is where I use it all the time. Cooking lentils in it frequently, I find 1 is low enough in a 2-3 qt pan for a gentle simmer, with 2-3 good with the lid off for a fairly fast simmer, to gook some liquid off, and here is where I can see it is not pulsing, like many electric cookware things do.
The temperature setting isn't really accurate, but I don't really need that. I tried it, just to see, and the 210 is a very fast simmer, which is higher than the 1, and probably 2 when it stabilizes. The 140, closer to 180-190, could probably be used for a slow cooker, using a heavy DO, but I never tried it. In this mode it does pulse.
Hope that helps. The main reason I use this thing is that I don't want all that heat going into my kitchen in the summer, after I just paid to cool that air. Still, I need my gas for all that stir fry, but then, there's my big kahuna outside!