As I previously stated,
"I'm using the After Dark power supply that also powers the After Dark clock, and though I can say my Ether Regen is warm I would not classify it as hot. I can keep my hand on top of it without any discomfort."
So perhaps the power supply that is used has something to do with the excess heat?
BTW, there are heat sinks that can be added easily and available on Amazon.
ozzy