The Future of Heat Pumps is Underground (and other places, too!)

Opublikowany 1 kwi 2021
If you thought you were pumped earlier, wait until you get a load of this! Policymakers, pay attention!
Heat Pumps Part 1
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!
Dolphinhats , Brian Taylor, Arnas , Jacob Kubacki, Steven West, Bob Meyers, BEAVIS, Michael V, Ross George, Kael, Merton Hale, JCRail , Bill Holland, Micah Catlin, AZbytes , Sebastian S, StellarDrift, John Goldhamer, Bob Holt, John-Paul Holt, Ruleryak, Andrew Rogers, Evan Doyle, wholegroanoats , Endless Mike, Torte Hanrahan, Jamie Mastro, Shivan , Ethan Pierce, NQR , Jeff Powell, Anthon Hintzen, Devin Luxner, CJ Mariani, Stefan Kaczmarek, Timm B, Wolf Tolbert, Nhan L, Joon Choi, Sebastien De Groof, Robert T Kirton, Alex Ferriroli, Juha Kuikka, Maggie Danger, Matthew Lowe, An Ho, Steven Byrum-Bratsen, Sean Callinan, Aquinon, Sarah Collie, Maxime André, Chaos215bar2 , Michael Grados, Daniel Nefzger, Matias Mariani, Christopher Barback, yetanothername , Synoiz , Chip , Ulises Vargas, Jennifer Rae Fuchek, Adrian Bridgett, John Gjonola, Chad Gertz, Zhongchao Qian, Sean Murphy, Robey Pointer, Hayden Taylor, Alexander folk, Matt Gibbons, Omnizen, Zach Bean, mstar27, Jack Knight, Peter Bergström, Peter Amling, GGreathouse , Stephen A. Wilson, Sam Becraft, Chris Benejam, Veronica Cary, Vincent Sandstoe, Robert Mikhayelyan, Corey Ogburn, Harlan , Mike Stunes, William Leonard, Cory King, Matt Braun, Eugene Arutchev, Steven Fazzio, Harrison Co, Michael Cafarelli, Gabriel, Justin Patriquin, Olof , Vincent Venezia, Doug Wallace, Brad Quinn, Jim Puls, Zachary W Collins, Ross James, Jonfidential, Lillian Fleming, Kevin McClaning, Keith Ditchman, ventusignis, Michael, Skoddie , Alix Odendhal, bd_, Benjamin Gouveia, Ryan Doucet, Billy, Sean Crocker, Phillip M, Robert Cole, iain , Ross Carter, Jakub Strzyżewski (jeikobu__), Robert Fares, Neptunium Fluoride, Fangzahn Aviation Studios, Aaron Binns, Matthew Yu, Johannes Wüller, Adam Golden, Rustmane Skytrekker, John J Yang, Matthew Hilder, leastbad, Joe Pannullo, Alex Conner, Colin Williams, Alex Lindeman, Jim Gilsinan, Kohana Coyote, Julian Freeman, Ed Torres, Jon-Håkon Røli, Matt Wright, Gunplumber , Bane Williams, vinny rapisarda, Manuel Garcia, Matthew Lucas, Doomerdinger , Udo Strass, Jonathan Polley, SomeonesGonnaPayForThis , Robert Valdimarsson, Atsumari, Alex Canna, Blythe Rathi, Brian Beck, Billiam, LazySpoon, Robert Haynes, David Nelson, Eli Youngs, Paul Hackett, Alex H., John Curley, Benjamin Dykstra, Dan Cortes, Vy-let Cybra, Joseph Fickus, Raymond Ernesto Colón, Mike Berman, Kay Ohtie, Cysioland, Pathite , Frode Hauge, Stu Kabakoff, Carmichael Keane See, Chris Jordan, Steven V, Brian & Laura, Brian Holder, Mindy B., Patrick Köhl, NoFriendsThatSlav , PetesGuide, Jeremy Whaling, VMRosetta, Nathan Walters, Michael Yeo, Massimo Fierro, Grant Blayney, Jake Sanders, William McKinnerney, Elizabeth, Amy Cable, Rafael De Los Santos, heyitsleo , Paul Sutton, Timothy Dunn, Duncan Sanford, Jack Alderson, Eric Kalenak, Lukas Svec, Mike Nichols, Blake Robinson, Roman~1, Ari Kestenbaum, Sean Harding, Bryan Helmig, Luis Calvo Mayo, Felix Huang, 0x0013, Jonathan Cotton, Isaac Evavold, Spencer Golde, William Willing, Vincent McBeigh, Ramon Perez, Xtr3m3 , Steve Fallon, Punkey , Sascha Strauß, Scott Kuker, V. Legrand, Shane Chambers, Jacob Oost, Donald Garwood, Fantastic Mr Socks, CyborgHobbit , Dan Basterfield, Casey Keeney, James FitzGibbon, MegaZone , Brian Ingalls, Aaron Carson, Erik T, Gregg Medley, Zackary Wojtan, Cody Bittle, Patrick, Andrew Hoddinott, Shay Sandik, Daniel Marcinkowski, Jayde Coler, Patrick Kennedy, Jesse S, Oswyn Brent, A tall shade of the color red, Colin Gagich, Mike McCaffrey, Mike Olpin, Michael Steinmetz, Andrew Krew, Devedander, Bryan Countryman, David McGrath, Richie Gaiser, Matt Christensen, Benjamin Albert, Truls Zhong Konstali, Cuervo


  • Hey everyone, it’s pinned comment time! And there are some *corrections and clarifications* here. Exciting! First, heat pumps part 1: Second, refrigerants! Sloppy script-writing me didn’t catch that I implied CO2 as a refrigerant was the _only_ other option, but it’s not! There have been many climate-friendly refrigerants in use in lots of applications such as isobutane and propane, but the main trouble with these is they go boom sometimes. In larger systems the quantities needed can be dangerous which is why R-1234yf and CO2 as refrigerants are important! Third, heat pump dryers! My explanation into them is, um, well not right. It’s better to think of them as giant dehumidifiers that recirculate air through the drum. Heat slowly builds up, but it’s not really being taken from the room. Instead it’s just the heat created by the compressor being continually recaptured, and a sort of thermal feedback loop forms. The cold surface of the evaporator also pulls the moisture out to be collected. Here’s a video from This Old House that has a great diagram (though the refrigeration cycle’s magicalness of latent heat is pretty much skipped) Fourth, I regret saying it's a "myth" that tankless heaters provide instant hot water. More fairly I think it's a misconception. Fifth, I dunno! I’ll add stuff here as we go along. Aren’t pinned comments neat? I love being able to put information right up at the very top for you so you don’t have to waste your time commenting!

    • @Jordan Macdonald I believe that was a Terminator reference.

    • @moonra Yeah! The poor shareholders! They got the vaccine research completely subsidized, and can't make billions off the back of a catastrophe! Whatever will they do? Get a real job?

    • @K V But won't someone think of the shareholders!?

    • @Hifi Teen nah the jacket Is just 80s Ireland

    • New Irish houses have put the ac on the ground using heat pump

  • All the heat i need is in my gaming pc

  • That's what she said

  • An old video, so you most likely won't see this message, but the idea of changing the price of electricity depending on its emissions is super interesting. Having electricity being worth more to sell depending on its source or penalized if it's super bad would incentivize building better power plants and might even make the economics of starting up new nuclear power plants more appealing to investors. Also an idea which popped into my head with no basis in reality is that one could use excess power produced during the day or during windy times to manufacture plastics from CO2 in the air. I think there was a company making "air plastics" and using extra energy to not only offset emissions, but actively reverse them would be a great marketing ploy, if not exactly feasible or profitable. I imagine there would be a big market for airplastics for the trendy community to show off how much they care about the environment and sell it at inflated prices. It's super interesting how many thoughts can pop up from watching a video about heat pumps.

  • Modern fireplaces are also a good heat source

  • "Carbon dioxide can actually be used as a refrigerant, although when you do that it prefers you call it R-744" I can appreciate the cleverness of this quip.

  • Hey I think you are the man for the job of explaining the propane refrigerator! They are confusing compared to a compressor refrigerator and nobody has a good video on it. You can be the number one video when people search for it. Love your work!

  • 8:08 Was... Was that a 'They Might Be Giants' reference?

  • I liked how you gently touched on the topics that we sould absolutely talk about but that would cause a "too deep alert"

  • WAIT JUST A SECOND! Are you trained in engineering? Or are just researching everything to have and climate science degree?

  • Wow technology changes so fricken fast lol. I think my favorite piece of tech was my first iphone...ahh such memories. Great job on your video!

  • Exhaust air as source for our heat pump on our HVAC heats a hot water tank which works as a battery for the hydronic home heating and the tap water. Works well down to -15 C. We have solar collector coils for the sunny part of the year in the same tank.

  • Magma Heating! Love it, I think they've been doing that in Iceland for many years. I want to try direct ground water cooling through valence convectors. The only electrical component will be a small 10 or 20 watt pump. I prefer not to pay through the nose to use Brute Force powering electricity hungry compressors, fans, and blowers.

  • I believe I've seen that they've started coming out with propane as a refrigerant.

  • Dandelion Geothermal in New York state does heat pumps with a closed loop water system in the ground. It was spun off from Google. Very cool technology!

  • I actually got a heat pump water heater! It's quite good, uses a lot less energy but I dont know if I'll ever make up the cost of buying it! Oh well!

  • Minneapolis uses district heating and district air conditioning. There is a garbage incinerator downtown which generates electricity, and heats the buildings downtown. St. Paul also uses a similar system. Some links:

  • This is video made me buy a heat pump dryer and i love the thing. I now have two extra 15a circuits in my laundry room thanks to the shim it came with and that's neat

  • I absolutely loved the bloopers at the end of the video amazing video

  • Some of you have heard about district heating before. Why not combine it with heat pumping? Just imagine: we take energy from undergrounds to the power plant, heat water with it and then distribute all around the neighborhood. Sweet!

  • Well you usually combine the heating and hot water here in Germany on new systems. You get a 1000 liter tank which has a heat exchanger at the top to do "tank less" hot water. Hot water is then looped to each bathroom with a pump which runs like 2-3 times a day for some minutes. The natural gas, wood, heat pump etc boiler has a dedicated loop which just runs to an heat exchanger in the tank. Usually you add a resistive heater as a backup heat source if the main unit needs a repair or a service. Vaccum solar collectors do most of the year the base charge, usually you don't need to run the main heater at all, since the solar collectors are enough.

  • heat pump clothes dryer would act as an air conditioner in that room? God, that would also solve the problem of the laundry room being too hot and sweaty.

  • 7:58 *Vsauce music intensifies*

  • I remember all the BS "heat pump schmeat pump" commercials there used to be here as anti heat pump propoganda.

  • When I was in HS in the '70s my girlfriend's father "invented" his own geo-based heat pump system. It almost worked! The first time he fired it all up something was obviously not entirely correct because he ended up freezing his lawn solid! A few modifications later and it actually pretty much worked, enough so that they had heat and A/C that actually kept the house pretty comfortable. Not bad for a shipyard welder with no formal HVAC training.

  • It is amazing that reverse cycle air-conditioning seems to be a novelty . In Australia for more than 20 years you would have to go well out of your way to actually find an AC unit that didn't do both cooling and heating. I guess our much more temperate climate, where most Australians live, is the reason.

  • Here's the Silver Bullet for house temperature control double-walled houses with a heat pump that is reversible recapture the heat as it escapes and shove it back into your house or just Pump It Out

  • What we need is a natural gas powered generator that dumps its exhaust heat in your house and then have a reversible heat pump in your attic to collect escaping Heat powered by the aforementioned generator

  • Chicago - digs (or drills) underground to get heat. Coober Pedy - builds underground to avoid the heat. Life is complex. Another brilliant video, informative but with the right amount of humour.

  • As a HVAC tech in Australia I love how much you know about the switching of a reversing valve. I love it’s brutality 😅

  • hey your programs are only about this shit like heating now, when you are going to do a program like the old ones about vhs and shit

  • 8:14 - Zero degrees out --- ???? Celsius or Fahrenheit?

  • The smale scale version of "District heat" is known as combined heat+power (CHP). And it is a worthwile investment for large buildings under a single power meter. You run and engine or turbine, extract 90% of the heat, and get power for to cost of engine maintaince. It can also double as standby power in some configurations.

  • You say that the drain line is a downside of the hybrid heat-pump water heater. But that's not really the case since most (if not all) tank water heater need a drain line anyways. It is used to release water to vent excess pressure caused by water dilatation during heating.

  • How hot would those underground pipes get when used for air-conditioning? I kind of worry about "Oh look, we just discovered some absolutely-essential microbe that lives underground to avoid temperature changes! Unfortunately, we changed their temperature, and now they're extinct." (Obviously that is somewhat hyperbole, but it's not completely outside of the realm of possibility.)

  • They implemented district heating (or as it is called here literally translated "city's heat") here in the 70s but is wildly unpopular because of both the much higher costs as the fact that it is impossible to make it warmer inside than the heat the municipality decided is warm enough. The neighborhood that had implemented it, started as a middle class neighborhood but is now low class, partly because of lower housing prices because of the district heating.

  • Bring the outside unit inside, vent it to discharge outside.

  • Regarding heat pump water heaters: I understand that in the summer they're rather wonderful, cooling the room they are in while heating the enclosed water. However, in the winter, every unit of heat the water heater pulls from its surroundings must come from somewhere, likely your home furnace system, correct? Not to throw the baby out with the bathwater there (as they're clearly better during the summer), but unless your home is currently being heated by heat pump, it seems like the water heater would just force the rest of your heating system to work harder for both the room temperature and water temperature to be maintained.

  • Some companies are using directional drilling (same equipment used to bury fiber, gas, electric, etc) for geothermal ground loops. This works on relatively small lots because they can drill from front to back right under the house or anything else in the way. Little land disturbed like with the vertical option but generally cheaper.

  • This already exist in sweden. Called "bergvärme" or "Hill heat": . However, it requires certain special conditions to be viable, since certain geographical areas are technically unsuitable for "bergvärme". District heating is very common here in Sweden and exist almost everywhere. Its called "Fjärrvärme" or "Remote heat" in swedish. Even remote cooling (Fjärrkyla), or "District cooling" exist:

  • Take a shot each time he says "heat"

  • Why not use a heat pump? Well, here in South Texas, my AC runs better than 350 days a year. Heating just really isn't an issue, at least not at my house, where most rooms exceed 27C when the outside temperature is under 10C -which in and of itself is a very rare occurrence. Indeed, the biggest problem I have is being unable to run the AC when temperatures outside are too cold to safely do so. Condensation of the refrigerant in the compressor cylinder can quickly destroy the compressor. Even before that, low temperatures can cause the lubricant in the refrigerant to work poorly, eventually causing the compressor to fail. Most manufacturers recommend their residential AC units not be run if the ambient exterior temperature is below 18C. More to the point, my experience with heat pumps in the past is they are not effective enough as either heaters or air conditioners. This may have changed in recent years, but none of my friends and family who have heat pumps seem to be able to either heat or cool their houses effectively. They certainly do not seem to be able to deal with a 30C - 32C interior to exterior temperature differential, commonplace here.

  • This is excellent information! Thanks! I have geo thermal heat for two buildings. In one building I have two apartments on two heat pumps on one well. The other building has 5 apartments on 5 heat pumps fueled by two wells. In Cambridge MA we have gotten through 7 winters on geo only. Check out my film and website, Film is also on PLtools. It can be done. Thank you for your advocacy, S.

  • The problem with super-expensive patented refrigerants is easily circumvented: let the free market take care of it. If it’s too expensive, nobody will buy it and the price will come down. Problem solved! This is why we have a free market in the land of liberty. What’s this talk of meters and kilometers? Are you targeting a foreign audience rather than an American one? Which audience is bigger?

  • future? thats so old, we got it 20 years ago, and it in fact isnt very good

  • 7:06 and 14:46 Too Deep moment. Too damn deep man. Don't anger the ancient corpo rat ionesice gods.

  • We installed a geothermal heating system in our hundred year old house over eight years ago. we had bought a small rectangle of land rigt adjacent to our house just to be certain no one would build a house there. We put it to good use, digging 400 yards of 4ft deep ditches zigzagging the field, just laying down 1-5/8" plastic waterpipe, and covering it with dirt again. the pipes circulate an alcohol blend good for almost -100 degrees. The alcohol piped into the heat pump is about 20 degrees at the coldest in the late winter. the heat pump was intalled where the oil furnace was before. The heat pump also heats our hot tap water. We got our investment back in seven years as heating oil is pretty expensive here in the northern Europe. In any case, my best investment to date. Oh, and speaking of it costing as much as a new car, a new car depreciates and never ceases to cost, while the heating system keeps saving. Thank you for the video, keep up the good work!

  • The reason why conventional electric driers need the 240V outlet, is that the heating coils are very energy-intensive to run. The motor is strategically designed to use the 120V half of the circuit, so that the same drier can be used in both an apartment that has a 120/208V "open wye" grid derived from the 3-phase service of the whole building, and in a single family home that has 120/240V split phase. The 208V or 240V operates the heating coil, because that equipment is a lot less voltage-sensitive. A heating coil ran on 208V instead of 240V ultimately means it only heats at 75% of the maximum possible power on a 208V grid. Electric ovens do the same thing, where they operate the heating coil from either the 240V or 208V, and then operate motors and electronics from the 120V. The motor could use the 240V circuit, and would be more cost effective to build, if it were designed that way. But then it wouldn't be versatile enough to run on both a 208V and 240V grid. Not without a tap changer, that would mean the potential for serious damage to the motor if the user neglects to set it properly. Motors are a lot more voltage-sensitive than heating coils.

  • I would like to see you tackle the tent cities phenomena. How do we make housing available to everyone? Do we need the Chinese to make homes for us?

  • Man. You're making me hate all of my current appliances.


  • One interesting article which I red recently was about one local parking hall for about 800 cars what they are building currently. In summer it collects heats and pump it to ground in about 50 meters depth. They say that the ground can store over 11GWh of energy during summer which they can use in winter to heat it without using any external energy for about 6MW heating power from the ground.

  • I wish I could thumbs up this video more than once. Fantastic information and presentation!

  • I found the "too deep" alerts to be repulsively jarring. I generally love your videos, by the way, and thank you for them.

  • "Too deep alert!" That's what she said.

  • IMO homes should be built with central condenser gas and evaporator liquid systems hooked up to one big central heat pump. That way everything that needs to be heated and cooled can be done in one big efficient system instead of a bunch of small compressors running, and needing to use your house's air to shuffle heat around.

    • Bonus points if the central system is an absorption heat pump, and gets its energy from solar heating

  • 👍

  • desuperheater ... heats water from the heat pump as it heats and cools your home.

  • I certainly see the points of heat pumps much better now and a friend has a heat pump/heating element hybrid water heater that has convinced me that's good especially since he doesn't have natural gas. I learn a lot from you but I'm hoping you actually go deep enough to stop believing and pushing the lefty climate agenda. You've demonstrated that you want to convey and teach accurate and correct information even correcting yourself when needed and are willing to do so especially when it breaks from conventional wisdom. Just hoping you get there eventually.

  • There’s not a chance in hell “next gen refrigerants we really need” are ever developed if you take away the profit incentive of patents unless you replace it with something like direct subsidies like we’ve been doing with electric cars.

  • I’d be SERIOUSLY against making more things “unpatentable” just because some body says it’s too important. That would be ripe for abuse. _EVERYTHING_ is tied to climate change these days for political benefit. What we do need is patent _reform_ where they simply can’t last for hundreds of years, be extended, etc just because a company owns them rather than an individual.

  • I want to like this video 100 times.

  • I don't like heat pumps when it gets cold...even with a nicer thermostat I found while it kept comfortable it did so at enormous cost... ended up tuning the aux heat lockout temp to make it more like the "dumb" systems so it blows colder but doesn't run up $500+ bills. Gas heat is so much more consistent and also WAY cheaper in colder friends with gas heat pay about half the cost (combined gas and electric) as we do for electric heat pump only.

  • This whole topic is a total rabbit hole. I started looking into the heat pump water heaters, dryers, etc. and stumbled upon heat pump spa heaters. After scanning over the available technology, I came across a series of heat exchangers that are designed to work with your ac. One heat exchanger is used to heat your home water. There is still an outside unit, I suppose for the excess heat. There is another heat exchanger that is used as a pre cooler before the evaporator and it is used to supplement pool or hot tub heat. When you boil it down, all of these efficient systems revolve around using the heat in your air to warm your water in some way. Either way, both systems claim to increase your ac cooling efficiency by around 15%, and give you free hot water in the process. I feel like this topic needs as much scrutiny as the CED. We are talking free energy here. There is no reason you should be paying to heat the outside in the middle of summer and still pay for hot water. Also I wonder what the economics would be as far as using swimming pools in conjunction with solar and heat pumps as sorts of energy batteries. btw. I live in South Mississippi.

  • I think it isn't enough said by your audience, since most porbably the majority of them are in US. BUT THANK YOU A LOT for converting all the temperatures in Celcius, it helps A LOT for me and all people who watch you outside from US! TNX!

  • it seems that packaging and efficiency seems to be an issue with ev heatpumps ...well atleast thats how toyota made it sound with the incorporation of gas injection tech in the Prius prime's heatpump

  • Won't indiscriminate drilling have the possibility to screw with the ground if some unknown stuff happened under it? this happened to Staufen im Breisgau in 2007: while the town hall was drilling for what i assume is a geothermal heat pump, they penetrated an anhydrite layer, which allowed groundwater to seep in, causing the anhydrite to expand. now the entire town is slowly cracking as the ground expands unevenly beneath their feet. sure, this is a "but sometimes" argument, and this could be avoided by...proper surveys, i don't know the actual term, but can you trust every public authority to properly perform that due diligence? it's on the same sort of scale, albeit of a lesser order of magnitude, to a possible return of nuclear power: both the benefits and possible consequences are immense.

  • Here I thought he was an intelligent person, and then he has to stick his political and economic opinions.... I'm pulling my patreon.

  • Please reincarnate me as a heat pump 🙏

  • I swear by by both of these tech's. Both our HWS systems have CO2 as a refrigerant. R744. Super efficient. The brands are Sanden & Reclaim Energy. One for the house & the other smaller on the Airbnb. (Much cheaper than gas HWS.) They both operate on timers, only in the daytime to utilise our rooftop solar electricity. Because we have 2 Airbnb's, we need a dryer. We chose an Electrolux heat pump dryer & it's also fantastic. We only use that if it isn't fine weather, as we hang the sheets & clothes up in the backward on the direct solar drying clothesline.

  • make him president

  • I do get the need for earth friendly solutions, but patents are there to help developers recoup their R&D costs. Then they expire... eventually lol. Brought to you by "Capitalism"! Otherwise, I love your videos, keep the knowledge rolling! Thanks!

  • Ammonia is still used all the time in large scale industrial refrigeration operations.

  • I watch your show because you digress. I hate to see a sharp knife dulled, especially for the whimsy of the dumb dumbs

  • In my country, we use thermal solar collectors to heat water during winter days (it's like sonar panels on the roof, but no electricity inside, they are just water tubes inside a flat transparent box and some concentrating mirrors). It works pretty well for having a boiling shower and cooking things. And if you have a good water tank, you can keep it warm for the whole night. And it's even possible to build them by yourself, if you like tinkering =)

  • Latent Heat; shouldn't that be called Implausible Heat?

  • What about natural gas powered compressors?

  • to be fair, and with no excuse as to why it took them so long, Tesla now has heat pumps standard on the 3 and Y as of 6 months ago i think... pisses me off because my resistive eats like 35% of the battery and i see NO reason for it not to have been included from the start - those engineers were certainly smart enough to do it and it doesn’t add a TON of complexity either...

  • i just realized: i get a HUGE Andy Rooney vibe off this dude. awesome 🤘🙏👍

  • 1234yf has its own downside- it's explosive.

  • When I lived in the Florida Panhandle, the watertable was high enough that people watered their lawns with wells. Some houses had air conditioners which interfaced with the sprinkler systems. Usually, sprinklers would run all day, spraying warm water. Some people had heat pumps. One winter we had a cold snap below freezing. The houses with heat pumps had fantastic ice formations in their lawns

  • Please do a review of heat-pump clothes dryer before recommending the thing. And smell the clothes when taking it out too!

  • The Tesla Model Y uses a heat pump for AC and heating. I think Elon watched your video. 🤔

  • Have you thought about looking into solar thermal systems?

  • kind of a myth that modern tumble dryers use a lot of energy... have you actually monitored it? My wife does 3-4 loads a week in electricity cost for washer and Dryer(cant separate them as on same circuit) it has cost about $4/month... since we wash with cold water this is almost our entire cost. obviously the dryer needs to be combined with a modern washer... the clothes are practically dry out of the washer. also our washer dryer is in its own room so even in the winter we open the window to give it an air source.... iv made sure that door is well sealed/insulated.

  • 18:54 gas is sus

  • Oh my. I disagree with you for the first time! I do hate heat pumps. Or to clarify, I hate modern heat pumps. They're overly complicated, prone to expensive breakdowns, and generally annoying to those of us unlucky enough to have to service them. Oil heat for the win!

  • Many EVs sold in UK and Norway have heat pumps as standard equipment, but the same EVs are often sold in the US with heat pumps being an option only available on the top trim, or worse yet not available at all. The only US market EVs I know of that have heat pumps as standard equipment on all trims are Tesla Model 3 and Y. Most EV heat pumps are air source heat pumps, and some also extract heat from the power electronics, but Tesla Model 3 and Y can also use their heat pumps to heat up the battery pack for DC fast charging and then extract that heat once back on the road to cool off the battery and heat the cabin. This is accomplished with something called "octovalve". I don't know of any other EV that can use a heat pump to transfer heat in both directions between battery pack and cabin. I'd really like to see other EV manufacturers go all in on heat pumps. They're great.

  • Can you make a vid about why central AC units freeze over? I have lived in 3 different places and it has happened at every single one!

  • I think climatemaster do a geothermal pump with heating, cooling *&* hot water all in one, very nice.

  • My middle school uses geothermal heat

  • Brilliant video! But as geologist, and a pedant, only in a very small number of places could you ever hit magma if drilling down. The temperature does rise the deeper you get, but because pressure does as well you only get melting of the hot solid rock (and even the mantle below the crust is pretty much entirely solid) if there is either a significant temperature deviation, or a decrease in pressure while temperature remains constant. Hence why more 'direct' geothermal energy, not using heat pumps, is only really possible in places like Iceland, where a big plume of hotter mantle material is rising underneath the island all the way from core-mantle boundary.

  • Heat pumps should be the future and should work in colder places.

  • One thing you did not cover and perhaps should have is equipment wear. Last Tuesday I replaced the scroll compressor on a ground source heat pump that was only ten years old. Unfortunately we see major components like evaporator/condenser coils, compressors and reversing valves go out on these units after 8-12 years. This is due in part because they are used more than twice as much as your typical air conditioning system since they are also handling heat loads. Definitely neat systems, but we have found them to be prohibitively expensive to run in SW MN simply because the equipment gets worn out too quickly. My Dad's heating system is a dual ground source heat pump and the equipment has been replaced twice since he installed it in 2004.

  • The moltent magma comment reminds me of the Geocore placements from Railroad Tycoon 2

  • have you done a video on hempcreet?

  • God I love these captions so much.

  • I. Love. This. Channel.

  • Thermal mass refrigeration systems. I work on these everyday. We don't run out glycol underground though we're in Texas lol

  • Great video but that 2.5 COP number is off. Natural gas combined cycle power plants are typically a bit over 50% efficient, topping out at 62%, while high efficiency furnaces and boilers are typically around 90%. Even ignoring renewable and nuclear energy, gas power only needs to be utilized at a COP of around 1.7-2.0 to break even on CO2 emissions. A COP of 2.5 or higher would burn significantly less gas than burning it locally.