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

1 Apr 2021
365 704 Aufrufe

If you thought you were pumped earlier, wait until you get a load of this! Policymakers, pay attention!
Heat Pumps Part 1
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  • 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!

    Technology ConnectionsTechnology ConnectionsVor 14 Tage
    • Here we have ground source heat pumps for summer - high cop even at 45 C ambient. To be technically correct (the best kind of correct) these systems are geoexchange or ground-source as distinct from geothermal

      Ralf WilsonRalf WilsonVor 4 Tage
    • 100

      mjr . LIFEmjr . LIFEVor 6 Tage
    • @first lastmany people including me vent their electric clothes dryer inside in the winter. Just don't try it with a gas dryer.

      Trevor RitchieTrevor RitchieVor 6 Tage
    • @BG HoodyI think he was referencing the use of the term "instant" hot water as a myth as tankless water heaters don't provide "instant" hot water at the end of a long pipe.

      Trevor RitchieTrevor RitchieVor 6 Tage
    • @Zack Carey Nissan LEAF uses a heat pump

      Trevor RitchieTrevor RitchieVor 6 Tage
  • Mmmmmm, earthy warmth!

    HotlogHotlogVor 3 Stunden
  • I would love to see some legislation requiring that all AC units are reversible. As you mentioned, the cost to make them reversible is nominal, and their efficiency is amazing on mild days. (Unrelated) I own a Model Y, and the heat pump is amazing. But during those super cold days we had in Chicago this winter I experienced what happens when the cycle can't run any more. It has to send power to the motors out of phase, generating about 3.5kw of waste heat per motor. It's quite loud, and makes the car vibrate a bit. Thankfully that only happens on super cold days! It sure did eat my range though.

    Colin StalterColin StalterVor 5 Stunden
  • Passive house technology is really cool. We covered some of it in my heat transfer class and the professor showed us some of the buildings they built as test cases. EDIT1: My university also ran a district heating system on its campus to provide all hot water for heating. IIRC they used a central natural gas heater or boiler of some sort. This was pretty nice because it also made the power grid rather rugged. Even if power was lost, you generally had heat. For their newer structures (A big gym with a ton of grass field space, hmmmmm) they started installing geothermal. EDIT2: Invalidating patents is often a terrible idea and will do more to stifle inventions. The presence of a patent on a new technology that is "revolutionary" spurs on other companies to develop their own version without utilizing the patents of the original, creating more technological advancement. There is a precedent which was set during WWII where the US Government required patent-holding companies to allow other companies to make use of their patents with a royalty agreed upon by the US Government. This had stipulations though that the produced goods had to be something purchased by the Government.

    LoneGhostOneLoneGhostOneVor 6 Stunden
    • This situation would be a good compromise as the original inventor gets to not only still make-up their original cost, they also get to do it faster, and potentially without even making said product themselves. This would free up the ability for more companies to then innovate on top of the patent to improve upon the designs.

      LoneGhostOneLoneGhostOneVor 5 Stunden
  • Damn, this makes me wish I could ever afford to buy a home. I'd love to have all this stuff!

    Vistico93Vistico93Vor 10 Stunden
  • My father-in-law put in Geo Thermal in the house he built 18 years ago and always raves about it to me.

    Zenkai76Zenkai76Vor 13 Stunden
  • Highlights: 8:21 ᵘˢᵘᵃˡˡʸ 21:46 25:53

    Mr. VitalisMr. VitalisVor 16 Stunden
  • Was that an Ellen's Energy Adventure callback I heard in there?

    photogineerphotogineerVor 20 Stunden
  • "Engineers are smart!" -TC Guy, 2020

    Maniac3020Maniac3020Vor 21 Stunde
  • I'm definitely the kind of person who loves laughing out loud at videos about the complicated inner workings of heat pumps

    RhythmicityRhythmicityVor Tag
  • we really need more investment into electric generation of LPG and gasoline. Then we can go full renewable on the front end, and retain existing use modes. Because heat pumps failing when cold means we need LPG....

    flow inflow inVor Tag
  • You were bringing up patents and how you think that patents that would benefit us in slowing and reversing climate change should be invalidated. Fun fact: the current worldwide patent classification system has a whole category for those technologies: Class Y02. So, that ain't going anywhere unfortunately.

    David CincirukDavid CincirukVor Tag
  • patents = horse shit..... Worst thing ever... Glad they're not international and our friends the Chinese can ignore them

    Hugh FraterHugh FraterVor Tag
  • R1234yf seems to only be in use in automobiles, does @technologyconnections know when it will be available for home cooling?

    Michael FMichael FVor Tag
  • 11:21 No man, this is not possible. A heat pump powered by gas cannot transfer more energy against its gradient than is contained in the gas. If it was then you could hook up the output of a heat pump to the input of a heat engine and use that to drive a generator for infinite power. Electricity is generated when energy moves down it's gradient (Think water in a dam driving a turbine as the water falls to a river down below. ). You cannot use that energy to then create a greater gradient else where. This would be like using the energy from our dam to pump more water into a different dam at the same height.... You could just make a loop of dams and generators for infinite energy.

    Cinch MCCinch MCVor Tag
    • @Elin Unfortunately it is more complicated than that. We are not simply moving energy from one spot to another, we are moving it against the direction it wants to go. We are taking heat energy from a cold place and pumping it to a hot place. We are creating a difference in the concentration of thermal energy between the inside of the house and the outside. This is the reverse of the process used to create the electricity at the power plant. There they create hot, high pressure gas by burning natural gas and allow the heat and pressure to move to an area that is cold and low pressure. In the process they extract energy for making electricity. It is not possible to use one energy gradient to create a larger energy gradient some place else as he seems to be implying.

      Cinch MCCinch MCVor Tag
    • Isnt that the whole point of a heat pump? You take energy from somewhere and put it somewhere else, and the process of moving said energy takes less energy than you moved. You're not creating free energy, you're just taking it from somewhere else right? So yes you could heat up a home more than the raw chemical energy contained in the gas, since you're not actually using that energy to heat up anything, you're just stealing that heat from somewhere else using that energy.

      ElinElinVor Tag
  • I've just been binge watching yours videos, I just want to say thank you for making this content, I've got a smaller DEhave channel & I now understand how annoying it is to be stuck to a video schedual. You are awesome cool dude! I wish you a long life filled with joy!

    Level UpLevel UpVor Tag
  • Firewood is the answer. A tree scrubs the atmosphere to a higher degree while alive, than the carbon emitted while it rots or is converted to another form of energy.

    CotronixcoCotronixcoVor Tag
  • Same principle could be used to cool homes in Summers in temperate regions

    Ashutosh PandeyAshutosh PandeyVor Tag
  • I have a heat pump clothes dryer!

    Nick NNick NVor Tag
  • Here in Florida its pretty much standard to have a/c units with heat pump capability. I just had a new system installed, a/c plus heat pump, plus heater strips. Great system, $3300 installed for compressor and air handler (410a)..

    radzewiczradzewiczVor Tag
  • Ductless AC's will do heating and they are *great*. I have had them for many years. They weren't allowed for economic protectionist reasons until recently...

    エビGrilled FlatfishエビGrilled FlatfishVor Tag
  • Slightly unrelated rant at YT: I just realized I haven't been getting your videos in my recommendeds. I came to check on your channel today because it's been a little bit since I saw you in my feed, only to find out you've uploaded 3 times since the last video I saw and I had no idea. I hate the way YT's algorithm works because as an avid YT watcher, there are many channels I interact with, but unless I fervently interact with all of them as much as humanly possible, I don't really get a well curated sampling of what I like to watch. Usually it will cull down the recommendations to only those few channels that I happen to have interacted with in the last week, removing the existence of literally anything else from my feed. For example, I binge-watched some videos from a popular artist YTer a couple days ago, and now every other video on my recommended feed is one of his. I like his content, obviously, but that's a little much. I'd like to see some of the other channels I enjoy popping up in there too. I have a long history of watching said other channels that goes far beyond the last week, after all. Just because I haven't seen their stuff in the most recent past doesn't mean they're dead to me in terms of my interest! In any case, just dinged that little bell so that I'll know when you upload from now on, but what I wouldn't give for YT to improve it's algorithm altogether.

    Ceres AzaliaCeres AzaliaVor Tag
  • There were so many excellent points in this video, I'm gonna have to watch it multiple times. The concept of invalidating patents is the kind of attitude we need. "All hands on deck", use whatever we can ASAP.

    Ruben QuackRuben QuackVor 2 Tage
  • Back when I had a Mac laptop, on cold days, I'd just do stuff on my laptop and the laptop would get SO HOT that I could use it to warm me up. Also I've turned on and held incandescent light bulbs to warm my hands, and nowadays a gaming console does the trick if it's nearby. The heat that comes out of those things is how I imagine a hair dryer feels on its lowest setting. Sitting in the car is also very effective (It works like a solar oven). Somebody once had the idea that we could be using computers as heaters while they just crunched numbers for scientific projects that required tons of calculating. I feel like that's the real solution because it's for a good cause and the heat would otherwise be treated like waste when we actually need it.

    John SmithJohn SmithVor 2 Tage
  • I'm brazilian and I find it amusing that american ACs aren't reversible. I'm in my 20's and every single unit here I have ever seen is revesible. Also most homes here use electric shower heads instead of having a heated water tank. Say what you want about them but modern ones are f***ing amanzing.

    whatthereqwhatthereqVor 2 Tage
  • You should do a video about o3waterworks!

    Mitchell RuscinMitchell RuscinVor 2 Tage
  • Oh wow, nowdays we use the ,,zippy zappy'' way of power transmission so extensively.

    Jakab GergőJakab GergőVor 2 Tage
  • Just got my new $1500 Whirlpool heat pump dryer thanks to this video. With 12 KW of solar, electric car, and other energy saving appliances We are inching closer to being a carbon neutral family.

    Alex CourtneyAlex CourtneyVor 2 Tage
  • so, My air con remote has died. Its been bodged so many times, and I only use it on the odd really hot day (> 35c, I work in a tin shed, im ok with being hot). I wonder if i can hack the AC to ground source... i mean, if i need to rewire it anyway....

    arjovenziaarjovenziaVor 2 Tage
  • I would vote for you if you ran for office.

    Gabe BronsonGabe BronsonVor 2 Tage
  • Honestly kinda weird we aren't sticking the source tubes under roads whenever we build them. We're gonna dig deep into the ground for their foundation anyway, and imagine being able to make sure the road only freezes once and thaws once per year instead of like 20 of each each spring and autumn.

    junogutenjunogutenVor 2 Tage
  • So most towns and big cities are near some big river. If that was used as the heat pump source during winter to heat all those buildings, do you reckon they'd freeze it immediately, or would there be enough heat there?

    junogutenjunogutenVor 2 Tage
  • So when we're considering saving power from summer til winter, why are we making electricity with PV instead of concentrating the heat with those mirror and water pipe thingies and storing that away in some big tank somewhere coated in 10 meters of rockwool to be distributed to heatpumps near you in the winter?

    junogutenjunogutenVor 2 Tage
  • Heat pump clothes driers are many times also closed loop devices. We have one Siemens unit where the circulation is simple, cold coil -> hot coil -> drum -> cold coil etc.. Water condenses to cold coil and goes down to drain and hot coil heats the air again. Same air just circulates round and round. At the end there is slightly warm (100F or so) air that is reeeally dry circulating and drying happens quite fast. Only air circulation to room is simple fan that cools down the compressor unit but none of the actual dryer air is vented. Downside is that dust collects over time to cold coil as filters leak slightly, I had to pull the whole thing apart to be able to clean the cold coil fins. Of course the coils are below the drum on dryer base inside the air canal as it should have "automatic cleaning" which means that condensed water is poured over of the cold coil few times during drying cycle, but in first 9 years it actually blocked the cold coil airflow and drying time was getting extremely long. After cleaning the fins with compressed air to counterairflow direction the thing runs good as new. Compressor and rotation motor/fan has combined power of approx 900 Watts and one drum full of clothes takes about 1.5 hours to dry so drying the whole batch eats less than 1.5 kWh.

    KarjisKarjisVor 2 Tage
  • Actually big apartment block CAN get enough heat from one hole. That hole just need to be over half a mile deep. Not just research, in production already.

    KarjisKarjisVor 2 Tage
  • #TechnologyConnections4President

    Steven AlpertSteven AlpertVor 2 Tage
  • Me watching for the moment Alec just finally says "it's capitalism. the problem with all the things is capitalism": 👀

    Lucianna OsuchaLucianna OsuchaVor 2 Tage
  • Why can't you just dig a deep trench and put the spool of tubing in sideways in the bottom 3 feet or so of it, and backfill it? It would do the same job with far, FAR less excavating. The heat transfer would then be horizontal instead of vertical, but just about the same amount.

    Mike WarotMike WarotVor 2 Tage
  • Geothermal isn't a magic solution, you will eventually heat up the earth your looped is placed in and you will not get any more heat. The trouble is the earth/rock has poor heat conductivity.

    StinkPickle4000StinkPickle4000Vor 2 Tage
  • There are commercial buildings, in a downtown, utilizing borehole and heat pumps.

    StinkPickle4000StinkPickle4000Vor 2 Tage
  • Could a house that uses heated floors work with a heat pump though?

    My Username Is Also BortMy Username Is Also BortVor 3 Tage
  • Heat pump clothes dryers suck compared to "normal" dryers, at least my European one does.

    isupossisupossVor 3 Tage
  • My ground loop goes below freezing despite being 6ft or more below the surface, the combination of -20/-40F and lack of moisture in a semi arid climate meaning heat conductivity is limited, but methanol and other additives mean it still works fine.

    Steevo69Steevo69Vor 3 Tage
  • [rude raspberry] The subtitles are fantastic!

    Rémi CardonaRémi CardonaVor 3 Tage
  • My condo uses a closed-loop water source heat pump... it uses a really terrible line voltage mechanical thermostat I'm getting replaced with a modern digital one.

    MattMattVor 3 Tage
  • Our water heater is a hybrid one. We run it on heat pump most of the time. And because it's in the garage, it actually makes a great air conditioner for the garage in the summer. Especially since our garage door is insulated. I can actually just use my garage as if it's another part of the house. However, in the winter it gets hella cold in there.

    steevfsteevfVor 3 Tage
  • lifehack: if you put your house under ground you don't even have to pump the heat to the surface.

    holden⸻⸻⸻⸻⸻⸻⸻⸻⸻⸻⸻⸻⸻⸻⸻⸻⸻⸻⸻⸻⸻⸻⸻⸻⸻⸻⸻⸻⸻⸻⸻⸻⸻⸻⸻⸻⸻⸻⸻⸻⸻holden⸻⸻⸻⸻⸻⸻⸻⸻⸻⸻⸻⸻⸻⸻⸻⸻⸻⸻⸻⸻⸻⸻⸻⸻⸻⸻⸻⸻⸻⸻⸻⸻⸻⸻⸻⸻⸻⸻⸻⸻⸻Vor 3 Tage
  • 25:00 Holy... $5? Okay, I buy a considerably larger canister for work, but, they cost a GRAND! They never used to cost as much as £1000, but they do now.

    bobingaboutbobingaboutVor 3 Tage
  • i live right next to a lake in australia. in the winter it gets down to 10C (50F) at the lowest, and in the summer it gets upto 45C (113F). would it be worth using the lake for heating/cooling?

    Peter MillerPeter MillerVor 3 Tage
  • Ac unit that dissipates heat into hot water tank?

    seamego seaseamego seaVor 3 Tage
  • just wanna say thank you for the subtitles, idk if you write them but i assume so cause your funny notes, just lightens the mood, keep up your amazing work! been subbed for a long time and ill never regret sticking with ya!

    mortalZ zombieXmortalZ zombieXVor 3 Tage
  • I'm the UK we have point of use showers.

    David BalfourDavid BalfourVor 3 Tage
  • Oh, well done

    David BalfourDavid BalfourVor 3 Tage
  • Fully agree, now do combined hear and power plants

    David BalfourDavid BalfourVor 3 Tage
  • I was out by myself in the graveyard I was doing an interpretive dance...

    Spencer PetersenSpencer PetersenVor 3 Tage
  • I love your jacket, man.

    Sean MartinSean MartinVor 3 Tage
  • I'll defrost your outside unit. Sorry, I watched a stupid Nick Cage movie with my brother tonight.

    Sean MartinSean MartinVor 3 Tage
  • Here in French Canada, A/C is almost a foreign concept and our electricity is stupidly cheap and green. Electric heaters make sense here. I say almost, because one half of my building has A/C and my half doesn't. Where did they stick the heat pumps? RIGHT ON TOP OF MY SIDE OF THE BUILDING. There's an extra-loud one atop of my very dorm. Thanks to acoustic bullshit, it is especially noticeable when I'm in bed or at my workstation. I am not fond of heat pumps. I don't care if it's better. I don't care if I could save the planet. Heat pumps are loud boxes over my head and the less I have to hear them, the better.

    RWallace514RWallace514Vor 3 Tage
  • Didn’t get why keeping gallons of water hot is not more wasteful than warming it on demand

    danielecorkdanielecorkVor 4 Tage
  • Citys do use shared thermal heat, look at halifax.

    Anti DecepticonAnti DecepticonVor 4 Tage
  • I have an easy solution, it's crazy, but ever thing of just running 2 thermostats? also you can use the triggering of the secondary thermostat, to trip open a normally closed relay and cut w line to the line of the other thermostat and it will turn off.

    Anti DecepticonAnti DecepticonVor 4 Tage
  • Wouldn't ventless clothes dryers be a little dusty on the inside?

    GizmoFromPizmoGizmoFromPizmoVor 4 Tage
  • For this kind of price i would need to consume my current rate of gas and electricty for nearly 30 years before i reach the upfront cost...I admit those are great techs but like solar panels, if you are not rich they are more a financial trap than anything.

    dragonmares59110dragonmares59110Vor 4 Tage
  • Heat pump heat is always cold.

    GizmoFromPizmoGizmoFromPizmoVor 4 Tage
  • My Tesla Model Y uses a heat pump to cool and heat the cabin. So it can be done!

    John MarvinJohn MarvinVor 4 Tage
  • "Engineers are smart". Many engineers are smart, some have degrees and believe they know more than technicians with decades of experience. - a salty technician.

    K_TechK_TechVor 4 Tage
  • Thank you so much for this video! I was very confused about a construction site in my street where they are making giant vertical holes in the ground with huge tubes. It seemed completely crazy, but now I'm sure it's for a geothermal heat pump!

    Beere AzulBeere AzulVor 4 Tage
  • Radical!

    AlyxAlyxVor 4 Tage
  • I mean... Propane (R290) is also a pretty fantastic refrigerant, cheap, operates are reasonable pressures, and practically no GWP and no ODP at all. Buuuut... Well, everyone knows the downside here. People will freak out about propane in a refrigeration system, and yet no one has a problem with 600 gallons of it sitting in a tank behind the house. What about cars, you say? Ok, well, I guess the 10-40 gallon tank of HIGHLY flammable liquid sitting underneath your vehicle is also a problem.

    akio2589akio2589Vor 4 Tage
  • My parents added a geothermal heat pump to their house when they built it around '99. They /could/ have taken a vertical system, but since they had the place and were digging around anyway they chose the horizontal system. Unlike in your examples this isn't used for eating the air of the building, but solely for the central heating for both the warm water and the house's floor heating (we only have floor heating). Thus it isn't as easily reversible, but it *does* keep the house cooler in the summer a bit. The system runs without much problems and only around two years ago or so my parents had to replace the pump due to age. 😁 Fun fact: back then our friends had all said that they'd come around with blankets and such when our heating would fail, cause it wasn't that known back then either, but we always had a cozy home with around 23°C 😍 I take it condenser dryers aren't that common in the US then? 🤔

    PascalDragonPascalDragonVor 4 Tage
  • Odd that Tesla didn’t invest in developing an automotive heat pump before the model 3 - quite a lot of range bang for a surely fairly small development cost?

    Ralf WilsonRalf WilsonVor 4 Tage
  • Thoroughly enjoyed! Heat pump tech seems to be making some big strides lately into the high temp/high delta realm. Should do an episode on commercial scale systems, the COPs on chillers running cooling towers can be extraordinary (>>10) it’s combining an evaporative cooler with a heat pump but it’s still impressive.

    Ralf WilsonRalf WilsonVor 4 Tage
  • R-1234yf is still an HFC.

    pleappleappleappleappleappleapVor 4 Tage
  • New York City has several large district steam systems. They are not growing though.

    pleappleappleappleappleappleapVor 4 Tage
  • There's also gas-powered heat pumps. You might want to make a video...

    pleappleappleappleappleappleapVor 4 Tage
  • heatpumps are worse than gas boilers, i would never use a heat pump.

    gameplayer1188gameplayer1188Vor 4 Tage
  • Rock isn't that thermally conductive. Thermal Coils will shed temperature certainly. But when the cooling side becomes saturated, the rock will start to struggle to warm up fast enough by soaking heat from nearby rock or soil. But A surface mounted system can dump heat into a subterrainian solution. And you can pretty much dump as much heat down there as you want. It won't STAY but it will at least absorb more heat than any heat pump can dump.

    Glen McGillivrayGlen McGillivrayVor 4 Tage
  • "......IM PUMPED FOR IT!" 10/10 for heat pump based PUN EXECUTION

    MisFit ChitMisFit ChitVor 4 Tage
  • What we really need is for Peltier coolers to become more efficient. Usually solid state is more efficient than stuff with moving parts. Somehow it is not with Peltiers. If we can get them to be equally or more efficient the technology can shrink by a lot and make much less sound.

    jacky koningjacky koningVor 5 Tage
  • haha yeah capitalism sure is great!!!!!!! best joke i ever did

  • I was in a "greenfield" development when my house was built in suburb 35 miles outside of Chicago. There was bare land. I asked if I could have geothermal piping installed in the back yard. I was denied. I would have even hired my own contractors but was blocked every step of the way. Sad.

    Shadow KatShadow KatVor 5 Tage
  • I personally like the milder heat heatpumps provide than the oven like heat furnaces outputs...

    O!TechnologyO!TechnologyVor 5 Tage
  • The "But Sometimes!" Is back!!!!

    Christian TemelkoskiChristian TemelkoskiVor 5 Tage
  • It is STUPID expensive to run a heat pump. Gas is soooooooooooooooooooooooooooo much cheaper. Here in AZ, running my A/C, I see about $6-700 a month electric bill for a 5 ton 1 year old house/system with 3 zones (~3000 sqft house). I have natural gas and a furnace that cost me pennies all winter to run. Litterally about $30, for 2 months of use or $600 for two months heat pump...

    Mike HarrisMike HarrisVor 5 Tage
  • Hey, *I've been watching your videos for a while now* As an HVAC Tech who does Electronics for a hobby (including repairing VCR's back in the day) I appreciate how accurate your videos are. Even for the refrigeration content whereas most techie people have no idea. Anyway, *as it pertains to this video* I thought maybe you would get a kick out of a few of my own projects. I installed a 3 ton 3 phase condenser onto my home for a Solar Powered project (that is still ongoing work). I get the 3 phase from a Variable Speed Drive. Single Phase in. DC in from Solar. *I converted the straight cool condenser into a heat pump* here where I added a reversing valve, Thermal Expansion Valve, etc. Check it out! And as for my water heater. Well right after I replaced it I installed a HEAT PUMP with a circulation pump to heat my water. I later installed a smaller heat pump. Entirely DIY with a compressor, evaporator coil I fashioned, and a heat exchanger etc. I'm using a 9,000 BTU compressor. Pulls 8 amps at 115V which is about 4 amps at 230V equivalent. In compare to my 4.5KW heating element that draws 18 amps at 230V, that is a bit less! And it doesn't take too terribly long to heat. My most recent DIY heat pump is mounted outside and I ran the water pipe through the wall. I have yet to install a frost sensor so it did freeze the coil TWICE this winter. (It's pretty mild here in the AZ Desert) The videos are cool. I'm 50 yrs old so some of the old tech you review are fond memories!

    hackfreehvachackfreehvacVor 5 Tage
  • We are currently building an off grid house in upstate New York. The water heater has been a major headache because of how much energy it would use and how much solar system would need to be upsized. I will definitely look into the hybrid water heater!

    B BolB BolVor 5 Tage
  • I am going down all the channels I subscribe to and asking them if they can set up a channel on Rumble ... that way I can get rid of the DEhave app but still see all the best creators who I have grown to love. Thanks in advance.

    Chris MilesChris MilesVor 5 Tage
  • Well the problem with heat pumps in electric vehicles may simply be the cost. It's simply not feasable to put in a heatpump costing hundreds of dollars into an entry level electric car costing perhaps 1200 Dollars. Of course that argument is moot for those expensive massively overpowered vehicles companies like Tesla Motors make.

    wrtlpfmpfwrtlpfmpfVor 5 Tage
  • Heat pumps don't really work all that well if you are using oldschool radiators.

    Hobbes TigerHobbes TigerVor 5 Tage
  • Last week I delivered a 30lb container (think propane tank, but smaller) of R-1234yf to a shop. The invoice said it cost nearly $800...

    TikkaQrowTikkaQrowVor 5 Tage
  • Lots of systems slam the reverse valve while running because 'planned obsolescence'

    TikkaQrowTikkaQrowVor 5 Tage
  • Early adopters could also be turned off by reliability and they are godawful expensive to repair. Another fantastic (literally) green idea that has to improve before it should be forced on poor consumers. And yes, I had a house with a ground source heat pump. With repairs and maintenance it cost far more than a high efficiency gas furnace.

    Curt WuolletCurt WuolletVor 5 Tage
  • Intellectual Property is literally government-granted monopolization of ideas.

    chbruleschbrulesVor 5 Tage
  • So why is the heat output of my fridge not being pumped into my hot water system and tumble dryer?

    Pete SmithPete SmithVor 5 Tage
  • I have two ground source heat pumps I've installed. The one in my shop has saved my business thousands of dollars.

    amphibiousmarineincamphibiousmarineincVor 5 Tage
  • Kudos on the TMBG reference!

    dcseaindcseainVor 5 Tage
  • It may help folks to understand if they remember there is no such thing as “cold”, what we call cold is just the lack of heat. Heat is present in anything / everything above absolute zero. Moving heat via a heat pump can be very efficient under certain conditions / parameters, as all your doing is moving heat not generating heat, this falls in a narrow band of efficiency after which generating heat is cheaper than moving heat

    J TJ TVor 5 Tage
  • You like hybrid water heaters?

    Stove GuyStove GuyVor 5 Tage
  • Can we get heat pumps hot enough to boil water?

    David WilliamsDavid WilliamsVor 6 Tage
  • is this a real video or april fools? before i watch xD

    who diswho disVor 6 Tage