Hey just wanted to chime in since I've tinkered with my powersuit enough to where I actually think it's pretty overpowered and hope they DON'T balance it to make it easier (hopefully harder). I have the kinetic generator, it does NOT generate too much heat with one caveat: It seems like the "cooling system" (for the torso piece) is a requirement to manage the heat. You'll also need some heat sinks to go with it. I have 3 heat sinks, fully turned up on my chest, legs, and feet. This maybe, and probably is over kill. But I NEVER overheat and I have a fully charged battery (currently at 6Mil but that's irrelevant) that never/rarely goes down and I use all my systems at full power and without thought.
Let me know if adding these things don't help. I'll explain more of my build if needed.
Edit: One more thing to clear something up -
I don't think heat generation amount changes with moving the slider, so might as well turn it all the way up unless WEIGHT is a problem as it does effect weight (with the trade off of energy generation).