I recommend going with a Blichmann BoilCoil. That heating coil is ultra-low watt density so you won't need a false bottom to avoid scorching a bag. You also will not scorch your wort and develop caramelized sugars all over your heating element and the associated nasty flavors in your beer. Less maintenance, better beer. It may take a bit longer to get to a boil, but my experience is that the end result is better.