I answered this question- Why does the humidifier make a stove's flame orange? and earned 300 rep points for it as an "accepted" answer, but serious doubts have arisen about its correctness.
Doubt is also thereby cast on the legitimacy of the rep I earned.
For this reason I am hereby re-asking the question and will place those 300 rep points in play as a bounty for whoever can settle the question with an experiment. In your answer, please include enough procedural details so others can replicate your experimental results, and discuss those results in light of known physics.