More pumping. More now. Links 'n' stuff: The original video (explaining how they work) https://www.youtube.com/watch?v=7J52mDjZzto "Part 2" which is now, I guess, more simply about ground-source heat pumps and some other stuff https://www.youtube.com/watch?v=7zrx-b2sLUs Technology Connextras (the second channel that stuff goes on sometimes): https://www.youtube.com/channel/UClRwC5Vc8HrB6vGx6Ti-lhA Technology Connections on Twitter: https://twitter.com/TechConnectify The TC Subreddit https://www.reddit.com/r/technologyconnections And check out these cool people! Ryan Benson, Johnni Winther, Mark Hesse, Nathan Blubaugh, lululombard , Nelson , William Evans, VilleS , Anton Afanasev, HuskyWithCoffee , Ray , Petter Feltenstedt, Gideon Ritter, Oliver Lee, Lennart Sorensen, basram, Viorel , lohphat , Vivian Pypher, Brooke Whiting, Robin Johnsen, Phia Westfall, Tom Rolfe, Mark Wayt, Arthur Robillard, Vaughn B., Breunie Ploeg, Andy O, Benjamin Cirker, Julien Oster, LeoNerd , Chris Wallace, Matt Shea, Jason Baker, Galimaufry, Michael Holmes, Trey Harris, Benjamin Kier, Peter Pfundstein, Alan B., Mat Stu, RYAN INGOGLIA, Thomas Kolanus, Brett Morgan, Daniel Johnson, Potch , Reemt Rühmkorf, Robin Rattay, Bruce Justyn, Justin D, Adam Zawisza, Triancia, Juan Olivares, Michael Shaffer, Jason Spriggs, Gregory Kumpula, Daniel Pf, Yung Kim, John W Campbell, The Slapster, BytewiseMarissa, Vince Batchelor, Peter Sarossy, Toby Gerenger, Tracy Cogsdill, Matt Allaire, Guy , Will Hayworth, Benjamin Gott, Zach Le, Sean Fyles-Duggan, Fredrik Østrem, Anil Dash, Simon Safar, Fred Leckie, Kenneth Morenz, Andy Attebery, TritonZ , Greg Stearns, Chris Satterfield (Compgeke), Cameron Benton, Samuli Suomi, Keith McCready, Jeffrey Glover, Marcus Langendorff, Hsin-Kuei Chen, David Anez, Josiah Keller, roberto.xs, tfe, Struan Clark, Alexander Karlsson, Tarrien , Jason Viterna, DrMoebyus , Antonio Esparza, Chris Larsen, Michael Romero, Aram Hăvărneanu, Jonathon Mah, Arthur Zalevsky, John Fruetel, Adam Veneziano, Andrew Diamond, Cole Campbell, Christopher Beattie, Samuel Kirzner, Daniel Pritchard, Brandon Tomlinson, Eric Loewenthal, Jeremy Samuels, Malcolm Miles, David L Jones, Matthew Burket, Noah Corwin, Andrew Roland 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