Well, the steam thing does what you want without too much trouble.Now, back to the drawing board...
While that sounds like free energy, unfortunately the leftover energy when you cast a spell can't be used- it's just released as bolts of magical energy. I think. I didn't actually check again. If you /can/ split the energy between a spell and something else, that's a great way to keep up 3 ebbs/round at night when goldIn doesn't work.
That's yet another major Doctorate involved. You just leave an ice transformer on /all/ the time in one section. You only charge up half as fast, but it's really simple, and thus harder to stop.Just have a 2' long fall before it loops, split into 2 1' cube sections; then have a pair of ice inputs that flash on whenever the Phlogiston is not in their section, cooling that section to 20 degrees, and prepping it for the phlogiston's re-entry...
We can always link a couple EI together using the Dreamason PrC, letting each one make up to 1600 decisions in a round...