In the quest for load for my MEP-803a, I decided to build one into the machine. It's tough to see pics, but as I did other work "under the hood", I bought kiln heating wire, and coiled it in front of the radiator. Wire it into an additional contactor or the output lugs directly, and you have an instant built in load.
This is the heating wire I used. $10 to cover 3 machines... (3) 3kw coils. The coils look like tightly wound springs for shipping, but I stretch them out a bit to avoid overheating them.
http://www.amazon.com/gp/product/B00EZII95G?psc=1&redirect=true&ref_=oh_aui_detailpage_o08_s00
Being in front of the radiator gives it the advantage of constant air flow, and the safety of the exposed wire being out of reach (it's safer than opening the door to the power lugs). So far, in 8 months of weather exposure, it's not showing signs of rust.
The catch to this...I haven't actually tried it yet. I wanted to get the top on and machine ready for action fast, and ever since, I haven't had the time to take the top off to wire in the coil the way I wanted it (through a breaker).
The coil would be electrified (not to mention red hot), so it should be on ceramic standoffs.
Like these:
http://www.amazon.com/Fi-Shock-MP-6...d=1452554373&sr=8-13&keywords=wire+insulators
Here's kinda how mine looks installed:
![WP_20160110_003.jpg WP_20160110_003.jpg](https://www.steelsoldiers.com/data/attachments/411/411697-614a121b8c5c30d138e2d4d3b8e851a6.jpg)