Heat Pumps: the Future of Home Heating technology connections heat pump

by autisticchiaNGMAI



It’s so cold that it’s hot.
Part 2:
I referenced a lot of old videos in this one. Here they are, in clickity linkity form!
Chest Freezers; What they tell us about designing for X

Old-fashioned rice cookers are extremely clever

Reusable handwarmers that get hot by freezing

I also made passing references to
Forced-air Furnaces: The What, Why, and How

and
Portable Air Conditioners – Why you shouldn’t like them

Technology Connextras (the second channel that stuff goes on sometimes):

Technology Connections on Twitter:

The TC Subreddit

This channel is supported through viewer contributions on Patreon. Thanks to the generous support of people like you, Technology Connections has remained independent and possible. If you’d like to join the amazing people who’ve pledged their support, check out the link below. Thank you for your consideration!

And thank you to the following patrons!
Christopher Beattie, Help I’m trapped in a driver’s license factory Roberts, Samuel Kirzner, Daniel Pritchard, Brandon Tomlinson, Eric Loewenthal, Jeremy Samuels, Malcolm Miles, David L Jones, Matthew Burket, Andrew Roland, Smith8154 , Kenneth Siewers Møller, jacob kamphaus, Slysdexia , HurleyPotter, Tommy McCarthy, Andrew Bobulsky, On Ice Perspectives, TheGreatCO , Petteri Hjort, Daniel DeLage, Nathan Obuchowski, Shaun Puzon, Bret Holmes, Vlycop, Casey Blackburn, Devon Hodgson, Zimpan , Filmmaker IQ, Jan Houben, Bren Ehnebuske, T.J. Zientek, Vernon , Ton Brands, Scott Wright, Kory Howard, rezonant , Thanasis Dimas, Adam Quartarolo, Marc Grondin, HexTheDragon, Craig Kollai, Daniel Barrera, Mark Stradling, Peter Sodke, Dee Dub, joseph , Kristian Scheibe, BigMcLargehuge510, Andrew Liendo, Nick , The Masterpiece, Sterling , Chris Cody, Jason Portwood, Chad Fertig, Joseph Houghtaling, Ben Tucci, Josh Braun, Joe Johnson, Daniel Dugger, Christopher Lowell, Oleg Korsunskiy, Michael Sacchi, Ali Elam, Dan Allen, Zhenbang Xiao, Jason Watson, Markus Towara, Barky doggo, Ectra , Martin Embeh, Reid Fishler, Daniel Meagher, Joel , Clemens , Bill Bates, Centronias , Dennis Walsh, Alex Warren, Paul Robins, Michael Gernoth, CanyonMID , Les , Keenan Finucan, Ian Clanton-Thuon, Ryan Pratt, Paul Newton, Greg Golds, Theo Keeler, Tyler Alberico, Ben Ratner, WildMartin, Paul Sharp, Craig Brickey, Zidy , Brandon , Karl Kornel, Danila Fediashchin, Adam , Patryk Majewski, Ryan Kamphuis, WB , AmbientCyan , Sam Calandra, Wolfgang Gschwendtner, Józef Sokołowski, Will Preston, Christopher Olson, RexRath, Kor Nielsen, Stephen Amar, Bryce , Andy24x, David Jeroslow, Charles MacDonald, Tim Jones, Crisco762 , Phil E, AnsulFolf , Jack Mudge, Raymond Coutts, Ian Spence, John De Witt, Mike A, Alex Dodge, hipp1eguy , Justin Derleth, El Jefe, NEON725 , Emily Eisenberg, Mark Christian, Dylan Leblanc, Bard , Megan Lovett, LGR, kn0tsin , David Wulff, FirstWizardZorander, Michael Riegel, Paul Kavanagh, Isaac Clarke, Sean Hearrell, selectric, Keithius , Julian Haldenby, Seb Bacanu, Mauricio , Hunter Thornsberry, Austin C Borger, Gabe Cook, Anapan, Hodgkin LeBlanc, Michael Patron, Sonic Ether, mike quick, Calisto, Adam , Lucas , microserf , Daniel Kraut, John de Largentaye, Luka Sanzin, Peter Hillier, PeterH , William Holt, Ethan Hamel, Grant Campau, Else , Michael Dunn, Kenny, Richard Hicks, Atlas Pup, Levi Maaia, Mike Roach, Simon Janssen, Jorge Caballero, Matthew Schwartz, gs , ashka , Mr. Yan, Matthias Feist, RedR0ze , adan c, Thomas Fuchs, Markus Wüst, Alan Holland, Dan Boulden, Phiroze Dalal, Devin Rosenthal, Ray Hardman, G Cowell, Kevin Hamilton, Chase Tarson, Chris D’Arpa, Marshall Kurtz, Matt Goldman, Hurf Durr, shaun morris, Miguel Gonzalez, Bryce Ontiveros, Kenneth A Cusson, Johnathan Reale, Charles Corbin, Simon Arrow, Brett Walton, Martin Schröder, John Van Atta, lakewalk3r , Hayden McAfee, Dan Maku, Mark Injerd, Paul Demers, Michael Sandler, Jacob Harrington, Clay , Benjamin Deming, Thorbjörn Meyer, Eben Lowe, M1GEO , Michael Kaegler, Chrno , Colin Macdonald, Shlomi Borovitz, Krispin, Jan Borcherding

Images related to the topic technology connections heat pump

Heat Pumps: the Future of Home Heating

Heat Pumps: the Future of Home Heating

Search related to the topic Heat Pumps: the Future of Home Heating

#Heat #Pumps #Future #Home #Heating
Heat Pumps: the Future of Home Heating
technology connections heat pump
You can see more ways to make money here: see more here
You can see more ways to make money here: see more here

You may also like

29 comments

Technology Connections 21/11/2021 - 4:10 Chiều

Hello! Here's a comment with some extra info on efficiency and the metering devices used in heat pumps.
First: my wording on the efficiency drop in the cold was sloppy, and it sounds like I'm suggesting the need for defrosting is the only reason it loses efficiency. It is a reason, but not the biggest one – that's simply that as the outdoor temperature gets colder, it's harder for the refrigerant to absorb heat because the temperature difference between it and the air gets smaller. In fact, in the clip when it was -10°, it wasn't building much frost at all because it was very dry. But that was so cold that the refrigerant could barely capture any energy, which is why its output was tepid. And to be clear, its rating down to 5° doesn't mean it operates at full efficiency at that temperature. That's just the lowest temperature that it can sustain its rated heating output.
Re: metering devices. I still somewhat suspect that the mini-split has a capillary tube and largely because of its cost. It was surprisingly inexpensive (this unit was about $1000, but the smallest units from this same manufacture only cost $750 and are fully capable heat pumps). If you use a thermal expansion valve or similar, you need one for each direction which adds to the system's complexity somewhat. I'd still argue that it hardly does – it is, after all, one or two small components of a large system. But simply reversing the refrigerant flow doesn't work on its own in systems that use these more complex metering devices. They'd need some additional piping and valve work (some such valves were visible in the demo rig) to accommodate two metering devices for each direction of flow.

Reply
Briney Foster 21/11/2021 - 4:10 Chiều

ok I find this hard to believe. I lived in Florida for 25 years in a home heated by a heat pump. It was a newer, supposedly energy efficient unit but whenever the outside temp fell below about 45 degrees the emergency heat coils would turn on. They were very inefficient and costly, like trying to heat your home with an electric stove. The service technician said it was normal operation for a heat pump set up.

Reply
Stanley Parker 21/11/2021 - 4:10 Chiều

Great video. I replaced central AC with 4 split inverter systems five years ago. They have saved me a fortune in this TX heat. DIY install and repair info is easy YouTube find. There is an easy DIY way to add backup heat using a tank-less on demand gas hot water-heater, and small pump. Use cooling coils (auto parts store) placed on top of air intake. GOT HEAT. TX grid failure. This OLD Boy Scout is always prepared. Big generator chained to a tree and house filled with strangers.

Reply
John Weiner 21/11/2021 - 4:10 Chiều

At 2:37, "What we call temperature is really…", well sort of. At the risk of appearing fussy and pedantic, according to my high-school thermodynamics class, a temperature T is a parameter (a single scalar number) that is used to define a DISTRIBUTION of energy , called the Maxwell-Boltzmann Distribution, in a closed system that is observed in nature when the energy of the system is in contact and in equilibrium with an infinite heat reservoir at the temperature T.

Reply
Chris Moody 21/11/2021 - 4:10 Chiều

Why consumers don’t use heat pumps more is because the initial replacement cost is greater than conventional AC systems. Unfortunately people can’t see past the right now. I know I sell HVAC equipment. I try to inform customers the best I can to all available options. Some systems can save people money using higher efficiency equipment, but most the time people revert right back to the minimum expenditure right now.

Reply
sean Lavery 21/11/2021 - 4:10 Chiều

Pioneer mini split ducted concealed is what i have, high efficiency even in the cold winters of New York. It's some machine and way cheaper than Mitsubishi.

Reply
macbrush 21/11/2021 - 4:10 Chiều

Because of this video, I just purchased 2 inverter a/c's for my home. Hopefully they can save heating bill for me this year.

Reply
kdmq 21/11/2021 - 4:10 Chiều

If engineers can figure out how to make these work down to -40 C with a COP of at least 2 or so, they would work wonders where I live, the humidity gets so low on -30 and -40 degree nights that we won't really have to worry about defrosting the coil.

Reply
M. Tyler Ryan 21/11/2021 - 4:10 Chiều

7:46 Ayyy I went to college there :0

Reply
Michael W. Perry 21/11/2021 - 4:10 Chiều

When an unusual cold spell sent temperatures where I live down to 8 F, I used a heat-shifting trick to keep my electric bill from skyrocketing. In mid-day when the temperature rose into the low 40s, I turned my heat pump on and set the temperature in the 80s. When it reached that temperature, I shut it off and coasted through the night, letting the inside temperature drop into the 50s. The next day I repeated the cycle. I was only taking the heat from the outside when was warmest and thus cost the least to pump indoors. You might do a video on that.

Reply
Martinko Pcik 21/11/2021 - 4:10 Chiều

I am surprised nobody is thinking of combining the gas furnace with heat pump, providing majority of heating in mild temperatures and using the gas in the extreme weather. And it also provides cooling for summer

Reply
Martinko Pcik 21/11/2021 - 4:10 Chiều

This is a nice theory, but until someone can tell me about their experience with air heat pump in winter and their bill, for 2 winters, I will be not jumping a gun.

Reply
Sanyey 21/11/2021 - 4:10 Chiều

Just as I was watching this, my one month old split decided to defrost (it's 0 degrees celsius and thick fog outside) so I finally took the opportunity to see how fast it goes.. I was amazed how it literally whent from a block of ice into a waterfall under like one minute… This is currently the only heatsource in my living space, as heating only with gas is expensive AF, so I decided to give heatpumps a go. We'll se if its cheaper or not. Have to admit, that Im keeping a steady 27degrees inside with this thing, instead of the 23 I got with gas (trying not to go broke on gas bills)..

Reply
Tim Booked Two 21/11/2021 - 4:10 Chiều

I noticed that new houses in Germany where I live are all being built with heat pumps. On top of that the houses are all highly thermally insulated. Triple pane windows, floor, walls and roof insulation to the nth degree. If the heat pump could be powered by a photovoltaic system (at least during the day) that would relieve any possible strain on the grid, especially with all those EVs being recharged.

Our home in Greece is also highly thermally insulated. We use a passive solar heating, ie large windows on east, west and south sides of house. There is a large capacity heat pump for the upstairs living area and smaller units for the bedrooms. The temp, even at night very, and I mean very, rarely, drops below freezing. For the bathroom we use a portable electric oil radiator heater. We also have a solar powered water heater. We also have a wood burning stove upstairs. Wood is cheap and plentiful here. If we lose electricity (it happens often here, sometimes for hours) we have the wood burning stove for heat (cooking done with propane, generator backup for fridge and freezer). Rain water is collected in a large cistern (65 cubic meters). That works for us year round. Of course, we have to be conservation minded with electricity, (wood) heat, propane and water. But it works for us.

When I get some more money I would like to put in enough photovoltaic to run the house completely off grid. There are homes here that do just that, and they are BIG ones to boot!

Reply
Thomas N 21/11/2021 - 4:10 Chiều

I live in Virginia, most people I know have heat pumps

Reply
James Taylor 21/11/2021 - 4:10 Chiều

can they just not create a refridgerator combined with a heatpomp lol

Reply
shreddder999 21/11/2021 - 4:10 Chiều

the future? every apartment in Las Vegas had a heat pump in 1989

Reply
Lellba47 21/11/2021 - 4:10 Chiều

You are seriously telling me this is not a standard design on the US? I had never heard of an AC unit that doesn't have hot and cold mode!

Reply
Brian Duda 21/11/2021 - 4:10 Chiều

It's like a Carnot engine

Reply
Mixer 21/11/2021 - 4:10 Chiều

The Konda Electric car does make use of a heat pump!

Reply
garry jeffries 21/11/2021 - 4:10 Chiều

i heat my RV with the refrigerator
i found that the refrigerator has coils on the back that vent heat to the outside.
i built a valve in the vent so in the winter i can rederect the warn air from the back of the refrigerator into the RV during the cold of winter and to the outside during the summer.
between my refrigerator and heat from my big screen tv, my rv stays warn down to outside temps of 30 degrees.
i also have 1 inch foam panels in all my windows that keeps out the heat of the sun and cold of winter.

Reply
wnose 21/11/2021 - 4:10 Chiều

Here's another idea: dig a deep hole for a 4000 gal septic tank. Place the tank and run water lines (for heat exchange) inside it, then insulate the top of the tank. Cover the tank with at least 4 ft of dirt. Use the water tank to collect rain water, then use it for irrigation.

Reply
Dominick Heskett 21/11/2021 - 4:10 Chiều

Hey, can you buy and review the washer dryer combo units when you review ventless driers? I am very curious about these!

Reply
Brandon Gaines 21/11/2021 - 4:10 Chiều

Such a reversible big-box-outside-in-the-backyard setup would be beneficial for people in Washington and Oregon states where heating is common, but Air conditioning is nowhere near as common due to hot days being so infrequent 🤔

Reply
5610winston 21/11/2021 - 4:10 Chiều

27:50 "…electric resistive heating, which will always work…" Have you considered that a winter storm will often shut down your grid power and you're sorry out of luck? A natural gas automatic crossover generator will be essential under those conditions. Some years ago, a gas-fired air conditioner-heat pump was available (the York Triathlon system) but it proved so troublesome that very few were installed.

Reply
5610winston 21/11/2021 - 4:10 Chiều

Look up "The First and Second Laws" by Flanders and Swann.

Reply
Tyler W. 21/11/2021 - 4:10 Chiều

This is the first video I've watched on heat pumps and refrigeration that had me feeling like I knew how it worked after watching

Reply
EgoLTR 21/11/2021 - 4:10 Chiều

I was always told that A/C consumes a lot of energy. Is that not the case? Seeing as you mention it is a very efficient method

Reply
Ad Vanced 21/11/2021 - 4:10 Chiều

Badass video. 👏😎

Reply

Leave a Comment