Quote from: amaclin on October 02, 2014, 01:47:05 PM

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there's no proof the heat can be utilized efficiently

Yes. It is basics of physics.

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other than heating the facility in winter

and this is not "work" in terms of "proof-of-work"

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Also even if the heat is 100% efficiently utilized

Perpetuum Mobile? Shocked

Again? Oh, no!

Bullshit, the energy being there doesn't mean it can be easily 100% efficiently utilized. Try convert sunlight into electricity with 100% efficiency? or build a simple household boiler with 100% efficiency?

In terms of heating the facility, it's usually a facility that doesn't need heating, most likely it needs cooling. Also it works only in winter.