This an intersting videos: www.youtube.com/watch?v=zw_SrGU2iYs (it made copper melt, so it went up to 2562 and uses 2.5kw)
www.youtube.com/watch?v=3J9Dg1gKJpQ This one boils iron (2862C) The best part of it is the non contact with the apparatus and the simplicity of the system. Though I think it is hard to measure XP with this, unless you got a violent run away with an explosion.
