Vísindi og tækni

Heat Pumps: the Future of Home Heating

It's so cold that it's hot.
Part 2: isboths.info/zone/v-deo/mK-lqF6SYqSwjdQ.html
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
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


  1. Technology Connections

    Technology Connections

    Mánuði síðan

    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.

    • Jason Dolph

      Jason Dolph

      5 dögum síðan

      I was super surprised when I first moved to Japan and EVERY air conditioner was also a heater.

    • LTVA


      8 dögum síðan

      @melskunk central heating is a big system where water is heated by power plant or similar building that is built specifically for it. Then this water travels via pipes to houses and goes through radiators, cooling down and heating up rooms.

    • melskunk


      8 dögum síðan

      @LTVA wait what is the difference between a furnace and central heating? We call our home furnace our central heating

    • Ethan Nichols

      Ethan Nichols

      9 dögum síðan

      Could you turn a window AC to be outside and heat your house or room technically?

    • 汪波


      9 dögum síðan

      Our company It is a scientific and technological enterprise specializing in the R & D, production, sales and service of solar energy, air source heat pump hot water, heating and refrigeration engineering systems. It is the development and cooperation unit of Zhejiang Energy Research Institute - new energy source. The company won the title of Hangzhou high-tech enterprise in 2010 and ultra-low in 2011 The warm air source heat pump unit project won the national science and technology small and medium-sized enterprise innovation fund project award, and won the new industrial product award of Zhejiang Province. Also we want to find some partners or agents,If you are interested, we can communicate this matter。my e-mail: fexur@foxmail.com

  2. Past'uh


    2 klukkustundum síðan

    heat pumps really suck, Especially those mini splits. they dont do either heat or cool to well, they just exist. as a service tech I run into customers who have nothing good to say about heat pumps everytime.

  3. BigBad John

    BigBad John

    2 klukkustundum síðan

    Hum, well why don't you run the back up strip heat in defrost and there won't be any cold air coming out after defrost.

  4. Apollo


    20 klukkustundum síðan

    Great video brother! Quick note on 14:59 - The metering device on a MS is usually a capillary tube unless it’s more efficient and then you would have a thermal expansion valve of some kind or electronic expansion valve. However they are not located in the indoor unit they are actually located outside on most occasions.

  5. O!Technology


    Degi Síðan síðan

    As far as I know the metering device in minisplits are in the outdoor unit.

  6. lostc0z


    Degi Síðan síðan

    Would you be willing to expirement using a generator for the power source and use a heat pump window unit vs a quartz infrared space heater and show us the results?

  7. Nicholas Jones

    Nicholas Jones

    Degi Síðan síðan

    Haha dope B roll hahaha

  8. lostc0z


    Degi Síðan síðan

    It sounds like you're saying that a heat pump produces a over-unity for heating. Are you saying that the power plant miles away burning natural gas is more efficient than heating with a fireplace or natural gas furnace on site. Isn't their loss in powerlines and conversion losses from burning gas to boil water to turn a turbine heck they have to pump the water to boil how much energy was used for that? A gas furnace is using a blower motor for it's electric needs but a heat pump is using that plus a compressor several sensors and electronics. Let me tell you what savings you'll have with a heat pump water heater. None. Upfront cost - High, Plumber - High, + now you need a HVAC Tech - High, It affects your homes heating system costing you more, needs a drain for condensation. It falls into regular resistance heating with heavy usage or everytime it needs service and Techs are so expensive no one gets it serviced so shame on owners for not maintaining it. It works on paper not in reality. High Maintenance costs are the problem with technology and only the rich enjoy these impractical clown engineered devices. Most improvements in vehicle fuel efficiency came from weight reduction and turbochargers. A drop of fuel will always contain the same amount of power as it did 50 years ago and probably 50 years from now.

  9. Michael Hill

    Michael Hill

    2 dögum síðan

    Unless you find a way to produce electricity considerably cheaper than it currently is, I suspect home furnaces aren't going anywhere (in the US anyway). The rated seasonal heating efficiency of these systems are very optimistic and assumes a climate similar to that found in Dallas Texas (where it might actually make economic sense to use them). In heating dominated climates, heat pumps generally cost much more than a natural gas furnace due to the fact that natural gas generally costs about 1/3rd what electricity does per unit energy (in the U.S.) and the COP over the heating season will be less than 3, even for "high efficiency" air-to-air heat pumps. Also, heat pumps decrease in capacity as outside temperatures drop, so you'll also most likely need a source of backup heat unless you want to risk freezing your house and bursting the pipes carrying water and sewage. Aside from what I already mentioned. It would almost certainly put a strain on power grids in heating dominated climates. Heat pumps are generally less efficient in heating mode than cooling mode and more heat is required, meaning that winter peak electricity demand would exceed summer peak electricity demand. To summarize, aside from requiring an overhaul of the entire electricity grid, costing you more money to condition your home, and potentially causing extremely expensive damage to your home (and freezing the occupants of said home), it's a brilliant idea. Hey, Elon Musk said it so it must be true! He's the genius who "invented" the "Hyperloop", Electric Cars, and Space Flight single-handedly.

  10. B00rish


    2 dögum síðan

    147 degrees C out of an air con unit inside the house'? could fry food on that o.O lived and worked in Greece for 5 years previously, all air con out there (UK origin, no aircon), pretty sure around 30 was normal on the units?

  11. SmoothMechanic


    2 dögum síðan

    I’ll just grab some uranium for heat.

  12. DAN8137


    3 dögum síðan

    I have 2 indoor units and 1 outdoor. What happens when I set one of my indoor to heating and one to cooling?

  13. Freddo Flintstono

    Freddo Flintstono

    3 dögum síðan

    Heck, I had reversible ones in Malta. That gets never below zero as a result of a very large moat (it's an island), but when it's 10ºC outside you're very happy they cam reverse their summertime job (where it can go from 23ºC night time to > 35ºC as soon as the sun goes up).. Nice article, and sensible logic. Thanks for this.

  14. Kenneth Kossan

    Kenneth Kossan

    3 dögum síðan

    Wehad one in Minnesota in the seventies already..

  15. Sergeant


    3 dögum síðan

    A CoP of 2.9 in ideal, test conditions? So a CoP of 1.0 at home if you're lucky.

  16. Artur H

    Artur H

    3 dögum síðan

    In the book of Isaac Asimov foundation, the planet Trentor was heated like that. He wrote it in the Nineteen fifties.

  17. frank rizzo

    frank rizzo

    4 dögum síðan

    Just an FYI about GSHP in urban areas. St. Patrick's Cathedral in NYC has installed a huge Ground Source Heat Pump System to provide ALL heating and cooling . The Abbey in Bath, England has also installed a Ground Source Heat Pump plant. Your information about Ground Source Heat Pump installs are not accurate!

  18. NightChime


    4 dögum síðan

    "Not rated for under 5 degrees." So, perfect for me here, in California, but this is still news to me!

    • Jami Blankenship

      Jami Blankenship

      Degi Síðan síðan

      I can say with all honesty, if you are in a part of the state that does sometimes, even rarely, get a cold snap have a backup heat source available. My family had mini-splits in our apartment in south-central Pennsylvania. Not an area of this state known for the type of cold and snow you see along Lake Erie or towards Pittsburgh or State College. But for those few days in the winter when the temperature would start hanging out perpetually in the 20's the units did almost nothing. If the temperature got below 15 they stopped working completely. We ended up supplementing the heat with an electric fireplace that doubled as an entertainment center.

  19. Brad Ryan

    Brad Ryan

    4 dögum síðan

    Future? I’ve had a heat pump since 1986

  20. Ergzay


    4 dögum síðan

    -8C is kind of too warm for most environments in the US. It gets much colder than that in winter.

  21. WASH WOMEN 777

    WASH WOMEN 777

    4 dögum síðan

    Let me tell you something the new world order for a 100 years now have been making people believe they need sticks and bricks, know you need dirt you need the dirt to keep you warm you need the dirt to keep you cool , look up Michael Reynolds look up earthships, look up straw bale homes it look up. The truth green is the earth.

  22. William Richard James Nicholson

    William Richard James Nicholson

    4 dögum síðan

    You're a bit behind the curve on this since heat pumps have only been used for about 50 years now ! ! To present this as if it is recent development is ridiculous. Only a dolt would believe this is a notable subject. What next , are you going to tell us the new development of blending color of exterior machine unit to building color by using spray paint on their cabinets ? ? I have unit hidden by blending green spray painted exterior unit to match the green of the hedge that surrounds the perimeter. Entire house looks better this way . Is that also an item to make another useless video about ? Lose some weight , go get outside & do something useful without the need to bother anyone else .

  23. Car Parking Multiplayer

    Car Parking Multiplayer

    4 dögum síðan

    This would be amazing in the uk! Why is nobody talking about this? This would be a big hit with newly built homes, since here it’s rarely freezing but heating is almost always required!

    • Vykintas


      3 dögum síðan

      Somehow the UK is always very late to adopt new building technologies- it seems that double glazing is still a new thing there! When I lived in Scotland, a local architect, who lived in Germany for a while in the 90s, was furious while telling me how British architects and builders are still building traditional looking houses with single glazing and hardly any heat insulation, and thus the occupants of these houses then have to turn up their gas heating high to stay warm. It's a good thing gas is cheap in the UK, but it won't be like that forever :/

  24. WantEpicMusic


    4 dögum síðan

    My dad is an electrician and refrigeration mechanic here in Australia, so I knew about reverse-cycle air conditioning from a broad overlook perspective, but this video went into a bunch of detail that I love! Thanks for being my favourite tech nerd youtuber!

  25. Mahmoud Ezz

    Mahmoud Ezz

    4 dögum síðan

    I absolutely love how educational your videos are and your angle on things but please work on making the videos shorter or a bit more energetic as it's not easy watching the entire video despite my interest in the topic May you always have more success

  26. Michael Naso

    Michael Naso

    4 dögum síðan

    boy he loves refrigeration

  27. Marcin Kościelny

    Marcin Kościelny

    5 dögum síðan

    Here in EU heat pumps are popular, especially with solar heat and electricity, as they allow you to scale down photovoltaic installation. You get quicker return on investment if you combine these three. Not to mention the reduction of emissions, which will be huge even if you rely on coal power. During the coldest days just run your cryptominer to keep you warm ;)

  28. Davit prtterson

    Davit prtterson

    5 dögum síðan

    The plucky cub partially carve because zone successively interest apropos a tricky mice. unable, anxious glockenspiel

  29. Quixote


    5 dögum síðan

    "Reverse the polarity of the refrigerant flow!"

  30. Munk Puppy

    Munk Puppy

    5 dögum síðan

    my parents live in southern Canada, and they also have a heat pump that works quite well. They are really efficient!

  31. James Jin

    James Jin

    5 dögum síðan

    stronger pipes & valves with better coolants would allow this to work more efficiently in extreme weather conditions

  32. -


    5 dögum síðan

    He's right, every winter I turn my window A/C unit around so the cold blows outside and the hot side is in my apartment.

  33. JetpackDino


    5 dögum síðan

    This reminds me of a really cold day from school. I live in Australia, so we only used the ac to cool a room. So in this scenario, no one even thought to turn the ac on. A few teachers started bringing heaters in before someone said something lol.

  34. Rob Schofield

    Rob Schofield

    6 dögum síðan

    That's about the clearest explanation of this subject I've heard. A very good video indeed!

  35. Caleb Reetz

    Caleb Reetz

    6 dögum síðan

    Hey! I know exactly were that is! Went to school at FRCC!

  36. Simon Munch

    Simon Munch

    6 dögum síðan

    how much did Pepsi give Pioneer to include there logo ;)

  37. Sophie Robinson

    Sophie Robinson

    6 dögum síðan


  38. Lolan


    6 dögum síðan

    Rip the average winter day for me is -26c. Warm days are -17c cold days are -50c

  39. MediaMatters IsMyCockHolster

    MediaMatters IsMyCockHolster

    6 dögum síðan

    The Texas Big Freeze of 2020: I know of a large company that replaced their Propane based HVAC system with a heat pump system that was all electric, and guess which one failed, because Heat Pumps lose efficiency as the temperature drops? Sure, you can get add on electric elements for heat in the system, which works great, right up until either A) the power bill gets jacked up thousands of dollars, or B) the power goes out or into rolling blackouts, and regardless, you are still a slave to an electrical utility, and with the likely potential of higher bills even when working within 'normal' temps, or a blackout whenever they need it. With propane or natural gas, it's easier to run minimal systems with a backup generator of some sort. One of the owners who approved purchasing this technological trainwreck stated that they had researched it first.. on ISboths.

  40. Stormspark


    6 dögum síðan

    I'm getting a Tesla Model 3 soon-ish (month to a month and a half or so). And...guess what it has! The AC in the car is a reversible heat pump.

  41. Ian Benavides

    Ian Benavides

    6 dögum síðan

    This connection of videos makes all of this science make more sense!

  42. Marcin Dżamroga

    Marcin Dżamroga

    7 dögum síðan

    Teletext video?

  43. lollopingnoob


    7 dögum síðan

    My family recently built a house - as in in the last year - and we got an air source heat pump. Shits crazy

  44. Ed Aten

    Ed Aten

    7 dögum síðan

    Why don’t carbonated beverages cool themselves as they decarbonate?

  45. Rolph Finkin

    Rolph Finkin

    7 dögum síðan

    Your audio is decent, but please run it through the "de-esser" in audacity to kill some of that sharpness in your "s" sounds. When I turn volume up, there are major volume spikes on your s's and it's almost painful when the rest of the vocals are just nice and audible, not 'too' loud.

  46. Axe 001

    Axe 001

    7 dögum síðan

    "What if I were to tell you that all of the energy you need to heat your home on a cold winter day could be found.. outside?" Me:Bullsh*t.

  47. George Loyie

    George Loyie

    7 dögum síðan

    As a payer of ridiculously high heating bills in Canada, this really caught my eye! So I googled it a bit... Here's what I got: For climates with moderate heating and cooling needs, heat pumps offer an energy-efficient alternative to furnaces and air conditioners. Like your refrigerator, heat pumps use electricity to move heat from a cool space to a warm space, making the cool space cooler and the warm space warmer. (As cold as it gets here, well it gets just as hot in the summer, not very moderate) Drawbacks of air-to-air heat pumps are: regular maintenance is required (cleaning the filter on the indoor unit) and a service check every 2-3 years. loss of efficiency as temperature decreases below 6-7ºC (but some models can still provide heating in temperatures down to -15ºC) (So in Canada, where winter temps get as low as -40C, this will require either another unit, or wood heat to take up the slack.) How much will my electric bill go up with a heat pump? $50 to $100 per month. (So I guess I won't be buying one, shucks!) Heat Pumps will raise your electricity bill - but lower your costs for other heating fuels. Each single unit (often referred to as a one-to-one) heat pump that is used daily will increase your electricity bill by $50 to $100 per month.

  48. Withnail1969


    7 dögum síðan

    What a load of mumbo jumbo. It's against reason to think you could efficiently warm up your home with air that's a lot colder than the air indoors. Can't possibly work without using loads of electricity. It is most certainly not going to be more energy efficient than just burning gas onsite to fuel central heating.

  49. betaneptune


    7 dögum síðan

    Nice video. Less repetitive than others. But temperature is not the "concentration of energy." You can have boiling water, with the liquid and gas phases at 212 deg. F. Both are at the same temperature, but the concentration of energy is much higher in the liquid.

  50. BlackSmokeDMax


    7 dögum síðan

    Any idea of the efficiency of that similar outside unit north of you? Next time i have to replace mine is certainly love to consider the option.

  51. Ken Mason

    Ken Mason

    7 dögum síðan

    Okay I know you're all talking and stuff but I'm diggin' that sport jacket yes...yes, it's rather snazzy. A big huge gaudy yellow gold ring on your little finger . That's all that jacket needs. Come on. You know I'm right. A good CHUNK of gold, HEAVY. A ring that says stuff. Yes. A ring that makes people say "What the HELL man!?"

  52. George H

    George H

    8 dögum síðan

    2:11 I love the dubbing. I have seen movies with worse dubbing. "'Yippee Ki-Yay, Mr. Falcon" (done for American TV censorship, but some dubbing in theatrical releases was bad too)

  53. True River

    True River

    8 dögum síðan

    3:00 Welcome back to your chest freezer; star of an earlier video :)

  54. hwd71


    8 dögum síðan

    So its like a portable air conditioner which blows the hot exhaust air inside instead of out the window?

  55. Rodrigo Madera

    Rodrigo Madera

    8 dögum síðan

    Incredible content, as usual. It’s rare to find such production quality filled with solid engineering knowledge. Definitely one of my favorites on YT.

  56. Tom Turnbull

    Tom Turnbull

    8 dögum síðan

    We have heat pumps in the UK. I used to work for a company that installed them underground.

  57. OlTrailDog


    8 dögum síðan

    In western MT I heat my 30x40 well insulated home with one of these heat pumps except for when it gets below around 5*F. I don't bother to use the air conditioning cycle in the summer as I just open the windows in the early morning and close up the home during the hot part of the day.

  58. PauleraBR


    8 dögum síðan

    Incredible, you managed to make me understand this. Wow, that is quite an accomplishment, thank you.

  59. Darius Varno

    Darius Varno

    8 dögum síðan

    meanwhile i'm watching this video with an axe near a pile of wood :))))

  60. edgeeffect


    8 dögum síðan

    Why has no one made a refrigeration system and named it "Maxwell's Daemon" ???

  61. Lucky 13

    Lucky 13

    8 dögum síðan

    "Air conditioning has been standard in American homes for over 50 years." You are showing your privilege, here, son. Make that 30 years, and you would be correct.

  62. Ce1es


    8 dögum síðan

    ok, so does this mean when Tesla announced they put a heat pump into their Model 3 that they just added that little reverse valve and piping thingie? Because the rest was already there being the A/C system that comes as standard in basically every modern car. [edit] that's exactly what you point out in the next one, nice :) [/edit] Also the fact that this system can have an energy efficiency above 100% blew my mind.

  63. Matthew Byrd

    Matthew Byrd

    8 dögum síðan

    The “future of home heating”? Really? Heat pumps have been around for a long time.

  64. adaptiveplexus


    8 dögum síðan

    I thought you lived in Orlando FL, I guess you moved up north

  65. muten861


    8 dögum síðan

    What you propose is in Europe standard. MURICA f###k yeah!!

  66. IronLion219


    8 dögum síðan

    This is an awful explanation of refrigeration.

  67. Dunwell


    8 dögum síðan

    I had no idea I was interested in this stuff. Maybe I should go into the HVAC trade.

  68. Steve Larsen

    Steve Larsen

    8 dögum síðan

    What FLIR camera are you using?

  69. David Rumming

    David Rumming

    8 dögum síðan

    Wow. First up....those split air AC systems are getting retro fitted to many buildings in U.K.....such as workplaces, dentists, doctors surgeries. As for heat pumps, the aim of U.K. gov is to have all new buildings + replacement systems be heat pumps (or alt simply electric heating) in 10y from now. Currently most buildings are heated by gas - not the stuff you put in automobiles, but the gas they dig up from under the sea and pipe it to buildings. Are heat pumps really that reliable...seems to be lots of plumbing in the system.

  70. Walter Burton

    Walter Burton

    9 dögum síðan


  71. Guilherme Trojan

    Guilherme Trojan

    9 dögum síðan

    Bepis 13:25

  72. Human Sh!tpost

    Human Sh!tpost

    9 dögum síðan

    I'm going to trade school for HVAC and Refrigeration. Its pretty cool seeing one of my favorite youtubers talking about it

  73. R


    9 dögum síðan

    Heat pumps have become a relatively commonplace method of heating homes in New Zealand.

  74. King Masterlord

    King Masterlord

    9 dögum síðan

    quick question, can we use electrolysis to build pressure without an electric motor? doesn't have to be electrolysis, all it has to do is be less energy intensive than running the compressor and cause out gassing.

  75. Yoda'sFreetimeIsSpentHere


    9 dögum síðan

    Your mic eq really makes the S sound of your speech hurt my ears

  76. xFuaZe


    9 dögum síðan

    In the Netherlands we have homes running sololey on heat pumps, no gas or electric backup. We use water-to-water heat pumps with heat recovery and (efficient) low temperature floorheating. Since ground water doesn't change too much over time; the heatpump is very effective all year through. Installation costs are pretty high; but to be connected to gas, you have to pay a monthly fee. Also; you're only using electricity and when combined with solar panels (and triple isolation); we can create practically '0 emission'. It really helps that the Netherlands doesn't have extremely harsh weather though, but water/water heatpumps will be much more effective in the US. Looking forward to part 2!

  77. TheVaf


    9 dögum síðan

    Soooooo, then the most efficient system would be to connect your gas burner to a small steam turbine, all kept inside so you don't waste heat, that produces electricity to run a heat pump XD

  78. AYAN DAS


    9 dögum síðan

    I think you explained it in a far more complicated way than possible.

  79. notanotherpyro


    9 dögum síðan

    What if someone made a heat pump that had something inside the house insulated with a high thermal mass that could be used to store heat. So when the heat pump is working at peak efficiency, it could store thermal energy for later.

  80. soap0688


    9 dögum síðan

    I like how that inverter's logo just casually incorporates the Pepsi logo.

  81. Joseph Keenan

    Joseph Keenan

    9 dögum síðan

    All those problems can be solved by closing the alternative power plants and replacing them with clean and safe nuclear power.

  82. Phil Martin

    Phil Martin

    9 dögum síðan

    At 17:30 is that just a horrible photo or is that wall-mounted unit really that crooked?

  83. pafnutiytheartist


    9 dögum síðan

    The card didn't get summoned 😭

  84. Fedupwithfed forever

    Fedupwithfed forever

    9 dögum síðan

    Its a lie....sure heat pumps are great in the southern US......but let's see it work in Minnesota in January.....It WONT trust me ...Ive been in HVAC FOR 30 YEARS !

  85. echo Awoo

    echo Awoo

    9 dögum síðan

    IAE bothered by the obviously not level outdoor unit ? Like no crits, TC, but that is driving me nuts lol.

  86. msr47gaming


    9 dögum síðan

    Don't cars a/c systems do this?

  87. Tomas Av.

    Tomas Av.

    9 dögum síðan

    best heat is gas heating. clean cheap, no worries

  88. Andrew Littler

    Andrew Littler

    9 dögum síðan

    N I C E

  89. Sturm


    9 dögum síðan

    Greetings from Russia, the land of natural gas.

  90. Belle Pullman

    Belle Pullman

    9 dögum síðan

    .... Sold! I'll take it!

  91. Aaron Talbot

    Aaron Talbot

    9 dögum síðan

    fascinating stuff

  92. Timothy Crowther

    Timothy Crowther

    9 dögum síðan

    Verbose refrigerator

  93. Amin Abu Dahab

    Amin Abu Dahab

    9 dögum síðan

    I don't need to go to school after watching this 😄

  94. 汪波


    9 dögum síðan

    Our company It is a scientific and technological enterprise specializing in the R & D, production, sales and service of solar energy, air source heat pump hot water, heating and refrigeration engineering systems. It is the development and cooperation unit of Zhejiang Energy Research Institute - new energy source. The company won the title of Hangzhou high-tech enterprise in 2010 and ultra-low in 2011 The warm air source heat pump unit project won the national science and technology small and medium-sized enterprise innovation fund project award, and won the new industrial product award of Zhejiang Province. Also we want to find some partners or agents,If you are interested, we can communicate this matter。my e-mail: fexur@foxmail.com

  95. Alexandra Koretsky

    Alexandra Koretsky

    9 dögum síðan

    Future? Like every other house has them where I live (New England).

  96. JJ Harris

    JJ Harris

    9 dögum síðan

    The first 30 seconds of this video have thoroughly convinced me that you would be a brilliant infomercial host.

  97. foodie nick

    foodie nick

    9 dögum síðan

    i'm sure this is not the case for all units, but many cooling only units have all the necessary parts for heating and buying a new remote control that has a heat button can unlock heating features. i assume they make all the units the same to make economy of scale savings (making all units identical saves money in the manufacturing process) and only lock these features on cheaper units to artificially inflate the retail value of heat and cool units. i discovered this when i moved into a property with ac units without built in controls, i purchased a cheap multi remote from amazon and the units were able to cool and heat. i took the remote to work where we had a cool only unit and using my new remote i was able to heat with the cool only unit.

  98. Brian Gamble

    Brian Gamble

    9 dögum síðan

    When I was a kid in the 70s, my parents had a 60s vintage Kelvinator refrigerator. It used a process similar to a heat pump to defrost itself. A few times a day we would hear a shhhhh sound as the refrigerant would reverse flow. Occasionally, the mechanical timer would fail but otherwise, it was a good refrigerator.

  99. ocean-drive slim

    ocean-drive slim

    9 dögum síðan

    Anyone know timmy from WKUK? But this guy's brilliant

  100. rhuttrho88


    9 dögum síðan

    Put on some clothes!!!!😡