More pumping. More now.

Links 'n' stuff:
The original video (explaining how they work)
https://youtu.be/7J52mDjZzto
"Part 2" which is now, I guess, more simply about ground-source heat pumps and some other stuff
https://youtu.be/7zrx-b2sLUs

Technology Connextras (the second channel that stuff goes on sometimes):
https://www.youtube.com/channel/UClRwC5Vc8HrB6vGx6Ti-lhA



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00:00 Intro
00:43 An old video needs correcting
02:19 The Coefficient of Performance
03:16 Resistive Electric Heat's Challenges
05:16 How Heat Pumps get around those
07:39 Modern Heat Pump Performance Is Amazing!
08:33 An analysis of Chicago winters and Heat Pumps
10:53 Hourly Analysis and Conclusion
12:24 Caveats (costs and demand)
13:52 The Main Point Of This Video
15:49 Backup heat, its necessity, and the options involved
18:29 Conclusion and where to go from here
19:56 Bloopers