No ability to adjust the flame. It either operates on full blast or its off.  Perfect, if you're looking for something to burn your morning eggs with. It also lacks an igniter, so you have to reach directly into the propane stream to light it. If the cover were 1/4" deeper a griddle could fit nicely inside it when closed up. Which would be a nice feature, but it doesn't so scratch that idea. Nothing like my old Coleman camp stove, should have kept that one...