If indeed heat was generated 'from nowhere' then our entire understanding of physics would have to be re-drawn.
Reich met with Einstein for five hours, and before leaving he gave Einstein a small Orgone Accumulator so he could verify the thermal anomaly for himself. Einstein was able to replicate it so he spent two weeks experimenting. He eventually retracted his initial declaration that it worked, instead letting his assistant Leopold Infeld put out a statement that the heat was measured because of convection.
Infeld's explanation doesn't really make sense, and Reich explained as much[8,9] but Einstein refused to comment or answer any correspondence regarding it.
The thermal anomaly has been replicated many times in modern lab settings[10] including experiments that specifically proves that Einstein was wrong[10]