Heating elements generate an invisible, high-density plasma stream from their tips. It is best if you try not to allow the plasma streams to cross. Actually, the streams should NEVER cross. In fact, ALWAYS keep the tip's pointed in separate directions within the brew kettle or a thermal electric plasma reaction will occur resulting in the instant vaporization of your hard-earned, precious, sweet wort! (Just making sure you're still paying attention!) Seriously folks, while a heatstick works great - if built and used correctly for heating water, step mashing and boiling wort - like any power tool, please respect it as the potentially dangerous device it is and everyone will be able to relax, not worry, and brew MORE homebrew!