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A comment on The Near Future of Electric Cars: Many Models, Few Buyers. Parent comment

Re:The Near Future of Electric Cars: Many Models, Few Buyers by lscotte on Friday December 29, 2017 @10:10PM (#16033628)
Few - Many electric cars use inefficient electric heat that draws as much battery power as the traction motors. Some have more efficient heat pumps, but not all. Regardless, heat is no more instant in an EV than a conventional vehicle.
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Re:The Near Future of Electric Cars: Many Models, Few Buyers by sitkack on Friday December 29, 2017 @10:43PM (#16033741)
Not to be technically correct, but electric heat is 100% efficient.
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Re:The Near Future of Electric Cars: Many Models, Few Buyers by sgc on Friday December 29, 2017 @11:37PM (#16033867)
A heat pump can be more than 100% efficient in the sense you seem to be talking about. It transfers heat from one area to another, and can bring in more heat to a space than the energy used could produce in heat through a resistive heating element.

https://en.wikipedia.org/wiki/Heat_pump

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Re:The Near Future of Electric Cars: Many Models, Few Buyers by sitkack on Saturday December 30, 2017 @01:41AM (#16034181)
I think you were looking for this, http://hyperphysics.phy-astr.gsu.edu/hbase/thermo/heatpump.h...
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