So if you had a Nuclear Reactor with ice in it. The wiki says "Each reactor tick, if a reactor's hull has more than 300 heat, it will evaporate 1 ice block, reducing the heat level by 300."
Now my question is that could you use pipes, either BC or RP2, in order to keep a constant supply of ice? (assuming you do not run out of ice)
EDIT: Or a water bucket instead of ice?