Dude, seriously? Aren't you worried about your dog or even the plethora of flammable chemicals you're throwing sparks at? There's a fine line between kludging and wanton disregard for safety, this is definitely the latter.
Dummyload on a budget. I needed to dissapate over 100 watts of radio frequency energy into a non inductive dummyload that would be submerged into mineral oil. 94, one watt 4700 ohm resistors came out to be 50.2 ohms. Not bad! Made in USA!