If the shape of the fire is a person with two arms on both sides, as if she was yelling frantically, "Help! I'm on fire!" -- This symbol actually is originally from the shape of the flame, but I like to think that way. Whichever works for you.
Tvar OHNĚ je člověk s rukama po stranách, jakoby zoufale křičel: "Pomoc! Já hořím!" Ten symbol původně vznikl podle tvaru ohně, ale mně se tohle líbí víc. Vyberte si, co vám vyhovuje.