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In Australia heat pumps (usually referred to as reverse cycle Air Conditioners) are common. Water heat pumps are also rapidly increasing. The good thing about Tesla is that the thought of the competition should drive the existing manufacturers to really up their R&D. Seems to me there would be significant advantages to combine hot water systems, home heating and cooling into one integrated product.

Heat pump was a no brainer for me several years ago when I needed a new A/C unit anyway. Propane prices had been spiking and getting pretty ridiculous, so the heat pump gave me amazing savings. It paid for itself in 3 years.

Just as an addendum, my own experience with switching from a gas HVAC to a heat pump system was more beneficial than anticipated. My previous newer home had a natural gas (utility provided not a LP tank on site) system and was a single story ranch on a slab around 1500 ft sq. My new to me 2 story home w/ a walkout has a heat pump system and is about 3200 ft sq. Both homes were built within a few years of each other. My utility bill is the same for my current house as it was for the ranch! It is actually cheaper in the cooling season, but about 15% higher in the heating season. The overall average though is the same! I was able to further reduce my bill up to 20% by improving insulation around the house for less than $1k investment. I had used the same methods in my last home for a reduction of about 10%. Bigger bang for the buck with the heat pump system.

Not sure what is new here? I have had a heat pump system in my house for the last 25 years with hepa filters due to wife's pollen allergies. Also the current refrigerants are no longer bad for the ozone layer, there refrigerants were paused out a long time ago. Why call refrigerant Freon, it like calling every car in the world a Ford? I would be more impressed if Tesla used water vapour as a viable refrigerant. In cars. (Which is technically totally doable) Not sure what Tesla is offering in this case what is not already tried and tested rechnology. Would be interesting to read the tech data,.and hopefully they made some efficiency gains.

Also your refrigerant cycle chart is oriented wrong as the high pressure vapor from the compressor is fed into the top of the condenser. And high pressure liquid comes from the bottom to head the metering device just before the evaporator.

Great video I installed a mini split system four years ago and I’ve been very pleased I hardly ever turn on my gas furnace just use the heat pump to heat individual rooms. My system is considered a mini split. Which means one unit in each room. Disadvantage is air circulation small fans don’t push the air down the hallway necessarily. Extreme conditions I sometimes use a box fan to push the cool air around. I have a solar system from Tesla electric car model three and a small Jacuzzi (electric powered). My electric bill is still under $75 a month on average.

I put a 13 kw solar system on my 1800 sq. ft rambler in 2015, replaced my oil furnance with a heat pump, and in 2018 bought a Tesla M3. My total energy costs went from over $5,000 a year to about $500. The only gas I buy is for my wife's Honda Civic and my lawn mower. The heat pump uses the same heating ducts as my oil furnace did. The system works great, is quiet, and now provides AC in the Seattle area where I never thought I would need it. Thanks to Net Meeting, I bank excess solar power in the long summer days for use through most of the winter. Last year I had to pay about $50 for electricity for two months that were over the minimum $7.95 monthly charge. We did spend a lot of money on better insulation and weather stripping as our house was built in the 60's when oil was cheap.

the military has been using heat pumps for yearswith "emergency heaters" that get used to death in arctic conditions. The heating coils are exactly what you find in cheap 20$ portable heaters. The heat pump works better when trying to cool things dowm but is most eficient when you have a LOT of heat on one side or the other. In a desert there can be a cooling problem instead of a heating problem because the freon never condenses enough. We ended up having to adjust the presures in the systems to get enough cooling.

In Minnesota, my heat pump system has worked wonderfully for over 10 years. It reverts to natural gas in extremely cold weather automatically. We also enjoy high solar gain from windows and the HVAC system adjusts the fan speed to distribute that heat evenly throughout the house.

With recent heat waves here in the Pacific Northwest, we're exploring a retrofit whereby our very efficient gas-powered heater is replaced by a heat pump. Our system is a bit more complex than a typical forced air system because it heats water which is then pumped sequentially through 5 different radiant floor loops. By replacing the heating system with a heat pump it is hoped that warm water in the winter will be cooled in the summer. It is worth mentioning that the current heating system doesn't need to heat the water very much: water exiting the system into the loops runs about 85°, returning to the system only a few degrees cooler. So, we expect that, in the summer, water might only be need to be cooled to, say, 65° to achieve sufficient cooling to keep the house at a comfortable temperature. It's early days, but I'm hopeful.

In my 2100 sq ft. ICF (Insulated Concrete Form) home here in South Alabama it cost $130 to cool my home, I use a wood stove during the "winter" weeks. I spray foamed the attic and keep a chocolate Easter Bunny in the attic for a gag sitting on top of the attic HVAC unit, he has been sitting there for several years and looks great.

I’m in the HVAC field, what you are talking about is already been in practice for decades in the states. What he did in the Tesla is remarkable, taking commercial HVAC technology and put it in a car. Mitsubishi has taken it to the next level, heating and cooling from the same heat pump at the same time. It’s called VRF Technology. Now available for residential applications.

Is there any evidence that Tesla has any plans whatsoever to get into residential (or commercial) HVAC? I don't see the business case for it, because Tesla doesn't have any new physics to bring to the table, and existing HVAC equipment is already pretty efficient.

in the mid '80s I sold a wide variety of heat pumps to the residential market. Living in Canada, I was often asked how a heat pump gets heat from cold air. I would ask the client and then quickly answer.. what is the difference between 10C and -10C? 20 degrees of heat! The heat pump extracts the heat from outside and moves it inside. The biggest difference for most people is the temp coming out of the register in the house. An oil furnace or gas furnace delivers 110F and is very warm to touch. A heat pump delivers air at the register about 90F - problem is the body is at 98F, so it feels cool to the body. Put your hand over the register, a gas/oil feels warm, and a heat pump at 90F against a 98F hand feels cool. Common question: How can that heat my home?? A house is usually 70F - the heat pump even at 90F is delivering 20F of heat. In the room it feels the same 70F. Modern heat pumps are getting efficient - a significant saving in most of Canada at 30%

Very informative… like most solutions it’s often a balance of several things that ends up being used. I am surprised no one has come up with modular system you could retrofit to your garage combining wind, solar and an air source heat pump feeding your electric car. Your utility would manage the system prioritising your needs first and any excess going back to the grid to support balancing the system and generating an income. In the UK we have all the component parts including a converted ICE car to electric for free (£0.04 kWh) for a runaround… we are getting there.

2:05 "...but they've really only been becoming common in the last 10 years or so...": Unless you're in the motel business. There they've been common for over 50 years.

0:50 "...goes to controlling the temperature of our air...": And that is foolish. I never turn on the heat above 50 degrees. And I never turn on the A/C below 90 degrees. That's a 40 degree spread using no energy at all. And I'm always comfortable. You see, your body adapts and your comfort zone expands dramatically...and your health improves. Try it.

The key to a heat pump working to cool your house is the refrigerant is compressed and heated up so that it is hotter than the outside air. The outside air the cools off the hot refrigerant so when it decompresses after the expansion valve it is now cooler than your indoor air. The opposite is true as well when it is run in reverse to heat your home. It has to cool the liquid to be colder than the outside air warms the refrigerant before being compressed to make it even hotter than your indoor air. The limitations are if it is too hot outside, the compressed refrigerant is at the same temp or cooler than the outside air and stops working. In reverse it can't cool the refrigerant below the temp of the outside air and stops working.

Great explanation 👌about the heat pumps system usage in cars and housing infrastructure. We just have to make sure in Europe that we produce enough energy with our solar systems on the houses and apartment complexes. My impression (f. ex. in Germany) is that on a huge % Apartment Complexes don’t even give the possibility to load a electric vehicle and still have too little Solar systems on their roofs and Apartment and house owners would have to invest in new loading infrastructure with the pump connection that would need a “quick” political regulation to support investments as such and create a small business chain that has the knowledge and expertise to actually do the craftsman work. Sounds like a great technology. I wish our government would be open enough to invite you for consulting talks. And take quicker decisions not directly depending on an election outcome could be made. Thx for sharing.

In 1982 I purchased a house built in 1850 and had a long wood/oil furnace that gobbled up 2 cords (at a cost of $100) of wood the first winter in Minnesota. Before the onslaught of winter the following year I installed 20 KW of resistance heating in the duct work on the dual fuel program by the local rural electric utility. My heating bill went up to about $250 a month. The following year I purchased a used 3 ton heat pump, replaced the compressor, had outside help of an electrician and HVAC guy and my monthly bill dropped to less than $150. Go with the HEAT PUMPS ! ! !

I was waiting for you to mention that heat pumps won’t work in cold temperatures have the same problem where I live. They have made improvements recently talk to an HVAC guy and he said that they’ve come out with one that now works down to 20 below but they still recommend having an additional heater in the home For heating considering sometimes we get down to 30 below for weeks or even 60 below at night occasionally by the way that’s Fahrenheit for anyone who’s trying to figure this out. Good job on the video really enjoyed all the information was a great review of some of the stuff I already knew In the Tesla information was really interesting.

You never explained how efficiency will be helped by Tesla’s unit. Heat pumps are the future. I love Tesla/spacex. I don’t think there is some killer avenue that Tesla can go into to undercut the industry. Mitsubishi and Daikin are putting out every trick in the book as it is. There is no hesitancy to forge ahead in HVAC unlike the car industry 2007.

Everything I’ve seen Musk say about HVAC already exists including whole home hepa systems and WiFi/programmable thermostats. Whatever they might come up with would need to be pretty groundbreaking

I have both a gas furnace and a heat pump. It's all set up automatically to use the heat pump while above -20C. Although when it gets down to -40C that's when I appreciate the gas furnace.

"Freon" is a name brand, like Tylonol. The chemical is R-22 and it is obsolete. While it is still common, it is no longer produced or imported in many nations, including Canada. This is because it is a HCFC. Hydrochloroflorocarbon. The newer, "Puron" (also a name brand) R-410A is the current air conditioning refrigerant. It is an HFC, they removed the chlorine.

Hi, living in Miami in early 1980’s we had a “conventional AC freon system”. I calling it that as I’m not a AC engineer but compressor outside & air handler inside, small one zone house. We purchased the house new, and it came with a small heat exchanger outside the house, a device about the size of a shoe box mounted on the exterior wall. The compressor hot side freon was piped thru that small 1/4” maybe copper tubing to the box, thru a coil, that ran with water from the hot water tank immediately inside the wall in garage. So when the AC was in use, say almost 9-10 months of the year, I would turn off the electric HW CB and the AC used this device to lower the freon temp before the air cooling part of the compressor. Creating a very efficient system. So as a matter of fact the more hot water we used the better it worked? Basically unlimited free hot water and an air conditioner using presumably far less run time as a water based heat exchanger has to be multiple X more effective than an air based heat exchanger. Well I often wondered why every house in Fl, or anywhere else in the south didn’t have a unit like this. I can only guess that the “power companies” want to sell you electric not save electric. So maybe they bought the rights to the device and put it out of business. In summer I often just opened the HW taps in the house and let them run, i hate to waste water but it made a good system even work better! That house was the only house I’ve ever seen with that device. Well thats my 2 cents!

My 1500sqf ranch home, near Seattle, was built in 1969. All electric with baseboard heat. The winter power bills averaged about $350 per month! Some winters even more. No A/C. About five years ago, I installed a gee-whiz mini-split two zone variable speed inverter heat pump. Energy efficient refrigerator, cloths washer and dryer, and a heat-pump water heater. Almost entirely LED lighting. Energy efficient windows and some insulation about fifteen years ago. I have smart control over the HVAC. Carefully crafted schedules for heat and cool, to maximize comfort and savings. I even circulate hot water, on demand, so the shower is instantly hot when I am ready. No wasted cold water down the drain. None of the changes made much difference in power usage except the for the heat pump(s.) My 2022 summer power usage peaked at $41 for the month of July. I was not stingy with the A/C. I keep the house toasty when I feel like and very cool compared to the 'recommended A/C temperature of 78.' (70 to 74 depending on mood.) I will spend less than seven-hundred dollars for power this year. Average about twenty-five hundred per year before the heat pump. And now it is comfortable, hot or cold weather. I cannot imagine living without an efficient variable speed heat pump system again. Indoor temperature is 100% stable all day long, no ups or downs. The heat pump energy savings are so good, a solar system is no longer an option for my house. -G

Very clear & helpful. Thanks.

I want to start off by saying this was a very well put together video, do you have a lot of really accurate and up-to-date information about how refrigeration systems work. I do want to clarify that heat pump systems you seem to fail at around the freezing point of water so 32°F. All of the HVAC systems work by moving air along the coils and if the air flowing around the coils is around freezing it will slowly freeze water to the coils, thus freezing ice being attached to the coils reducing your airflow, which will get your pressures of your refrigerant way out of whack. I do really like heat pump systems they’re much more efficient than resistive heat strips there are a few kinks that need to be worked out though. All in all really solid video you earn a subscriber from this keep it up

Just a quick history lesson on REFRIGERANTS, Freon is a name brand. I was an HVAC technician so here's some info. R-410a was introduced as the alternative to CFC's (R-22) which depleted the ozone layer due to its chlorine molecule. But over time R-410a being an HFC, was found to contribute to green house gases due to its hydrogen molecule. So now we are tying propane based type refrigerants.

I've had a 18 seer heat pump for the last 25 years I'm way ahead of the Tesla's curve along with super insulation along with 8 in of continuous polyisocyanate insulation

Heatpumps been used in Scandinavia for many years, both air to air and air to water, for underfloor heating, freon are not used anymore but another less damaging fluid, most here have a Cop value of 5, so 1 kw in get you 5 kw out, so very energy efficient

Thanks for the link x

Don’t have this system but I have been thinking about underfloor heating running off a heat pump. Concrete has a greater thermal mass than air and would be so good to hear a large slab in winter and cool it in summer

It is honestly overdue to implement an updated version of heat pump technology in reducing global warming, where it is feasible (which is likely over 90% of the global market). It is an expensive transition though, and at least in the US, it is the best time ever to start this process due to the recent bill passed subsidizing heat pumps for home HVAC as well as water heating. In many cases up to 80% of the cost can be covered!

Really loved the video intro. Great job explaining the problem and getting me excited to listen to the rest of the video essay

I have another idea about Ventilate room during winter without cooling it So - two tubes side to side all along , through one heat air going out while through other coming from outside air heating simultaneously Little bit of energy was needed in this case for actually push air But its much much less then in Heatpump scenario If compare it would be 1/100 for example or less , ...

glad heat pump and geo thermal style is gaining more attention in the states. They're way more efficient and eco friendly.

As anyone knows that tech is expensive as electricity is utilized to create heat and more to move it. The best option that has been utilized for over 10k years but modified properly in the 1400's and subsequently in the 1940's in the USA is geothermal. Heat and coolness is produced "for free" by the ground and requires a fraction of electricity to circulate it into the house. It can work in any environment extreme heat or extreme cold. The only limitation is the available (depth) ground near the home. These systems can last 50 to 100 and more for the same cost or less in the replacement of these traditional heating/cooling system. And requires far less electricity to function. Per example if the exterior temp is 100⁰F the heat pump needs to work harder and longer to maintain an interior temp of 65⁰F whereas a geothermal the system draws the heat in the home into the (colder) ground and on it's return will draw the cold for the ground into the home. The only electricity use on these systems are for in floor radiant the use of pumps and the other option is to tie into the pre-existing HVAC system with pumps and an air exchange unit (transfer heat/cold to air). Tesla's tech is a cheap version of geothermal that has been utilized since the early 80's as fuel prices went down but 10 years prior geothermal was the way to go as it was the oil crisis and any and all fuel types were extremely expensive. We find ourselves again in such a situation and energy specialists all over the USA are constantly hammering for expensive technology. People wake and smell the roses. Fyi many homes are anyways connected to a heat source(furnaces) and AC unit. Now look into geothermal and also to better your insulation. A home in the south or in the north should have the same rating. It is there to prevent loss and the outside temp from entering. Most in Florida cool outside as the majority don't have any insulation. Same occurs in the north (Alaska, Oregon, Canada). Best way to notice if you are lacking insulation in winter is the lack of snow built-up on the roof. As proper insulation does not transfer to the roof therefore snow built-up is it's consequence

Gonna take some time to convince me I had a A/C - heatpump - heppafilter decades ago ..... now admittedly technology has advanced, but by nature 'heating' is way slower than cooling in heat pumps and walking into a 30F house and waiting 2 hrs before taking my coats off doesn't exactly suit me ..... I already struggle with the initial warm up delay in ICE cas before getting heat . Now my home unit had 'auxiliary' resistive heating to compensate for delays (sadly they were burnt out) .... but I still think it is sonething needed for the initial warm up

replaced gas wall furnace with ducted air heat pump . as well as better heating and cooling throughout the house. the air filtering system picks up so much

I applied for grant from doe in 1977 to build an air conditioner the uses no electric power ...only sunlight. it was an over grown version of the (ice ball) camper fridge. I was beat out by a window sized solar heater made from beer cans!

You barely touched on one of the major functions of car heating system. You mentioned the Octovalve which I'm fairly sure means nothing to most people. It is where all of the different coolants in the car come together and get sorted out depending on how they need to be treated. So if you are running on the highway and your electric motors and batteries are generating heat, and you also need cabin heat then motor heat can be harvested to make cabin heat more efficient. However when the conditions change and the cabin needs cooling or even the drive electrics need a cooling bost the various cooling fluids can be redirected so each takes the path that will get the desired results with the least amount of battery energy used to get the job done.

I believe this is only one prong of a multi prong approach which also requires that we build and operate our homes to be more efficient. Passive home standards go along way towards reaching this goal where a car sized heat pump may be all you need for a small home.

In addition to my AC story below I had another older house, this one in Maine on the coast. Well this house had an 80 gallon electric resistance HW heater. Well several people told me , jeez you better get rid of that as it will kill you with electric bill. 4 kids, 3 girls, get the picture. However the HW heater had a time of day device that it only ran on “off peak” electric rates. So “on peak” say electric was maybe 10 cents KWH. Off peak was like 1 cent KWH. Peak was 8am to noon. Then 4pm till 8pm. Monday thru Friday. Weekends off peak. So the unit had an override button to enable HW to be produced during peak, at 10X the off peak price. I think in about 15 years I used it once or twice. Furthermore everything in the house that consumed electricity worked on the same cycle, in other words run the darn dishwasher or washing machine AFTER 8pm, HELLO. So not only was our electricity bill very modest we were helping the grid load by doing everything during the so called dump rate time of day. How simple is this, why doesn’t every house have this system. You can forget about building new power plants as the ones we have would be running much more efficiently eliminating the current peaks and troughs. Simple.

This has much broader implications. The next step after the heat pump is the ERV. The Energy Recovery Ventilator, which can save heat on the exhaust end and moisture as well. The Passivhaus movement has been on this for 30 plus years.

You can already buy HEPA filtration systems for your home. Either stand alone or integrated into your current HVAC system.

In this video it is mentioned that heat pumps generally use Freon as refrigerant and the specific heat pump you show in 1:58 with a big X on it uses natural refrigerant, what is completely harmless to the environment while providing better operation conditions.

This is the guy that does the chemistry TikToks, isn’t it? We’ll never forget the gold!

What about rolling blackouts are just power lines down For that which is connected to an electrical line but of course somewhat maybe I already have a backed up store energy

I don't own a Tesla HP but I do own a Daiken HP that can be firmware updated, I can control temps and ranges from an app on my phone and I have a two stage filter system including HEPA and ionization filters. We run completely electrical in my house except for propane on demand hot water and factoring that in, I'd say along with some energy improvements like newer windows and doors, etc. Our overall electrical bill has dropped by more than 50%. Even in the summer when cooling.

Saving 75% with a COP 5 heat pump and solar panels here in Sweden. No batteries yet, except for the ones that we can’t yet use V2G in our Tesla cars. But hope Powerwalls will soon be sold in Sweden to complete our system.

wow I finally have a comment to make. You asked towards the end, who is doing this now, well I am. I did it in March 2021 demoed old system and installed heat pumps whole house no supplemental systems. quick stats. 1800sf home-Mojave Desert CA, previous system (as of 18 months ago) Cooling- 2 master cool swamp coolers on the roof 30 amp each, Heating-100amp electric forced air furnace. summer time 110*F 3-4 months a year, winter 20*F snow every 3-4 years only you know the desert does get cold, not Canada but hey, this is us, cold enough to be cold. that system it was still too hot in the summer (we roasted) and still too cold in the winder, we blasted heat or ac energy bill was really hi. really hi. Now since I installed heat pumps, one 35amp and one 45 amp heat and ac. Mr. cool oh ya. 6 zone, dual exterior pumps. we have to turn off the cool air in the summer, (my kids are polar bears now) and we feel nice in the winter. I removed the 2 master cool swamp coolers, and took the plunge based on science and removed the furnace. I felt so crazy 18 months ago thinking what an I doing here. but now after 18 months I would do this to any new home I ever purchase. those diy mr cool units came out total to around $6k, upfront cost or sure. but the return on lower energy bills and the quality of life is priceless. So totally believe in the technology, living breathing proof family of 5 (3 teens) are way more comfortable. scary at first, but I did it and the stats, real life experience, and data does not lie. ok I am done, -JM

is this a lessen in Air Conditioning. what about using accustic refrigerating . or SOUND .

Back in the mid to late 80’s I was stationed at the Naval Base in Norfolk, Virginia… I lived in Virginia Beach where we had a new town house built and they used a heat pump system way back then…

Thanks for the great video. It was interesting hearing that Elon and I agree on this one. I think the idea of a heat pump is great, but it's got to be quiet. I live in a condo, so my neighbours are close by. I really don't want to listen to my neighbour's heat pump all night long. Until it's quiet it's not going to viable. 58 decibels is currently the best I've seen. I would think 30 decibels is where it be reasonable to consider the switch.

It is not Freon, it is R410a, at least in North America most commonly. Freon is generally banned because it is super crazy damaging to the environment, a lot more than R410a. You could use a few others. Something often overlooked is propane is the least damaging refrigerant we have today; it is just flammable. Then again when the system is not supposed to leak and we use propane all of the time, it seems more hype then real problem. R410a has a boiling point of -48.5C, so this whole "it's too cold to boil" is made up by you. There is a problem in creating a big enough temperature differential and that is real for your Canadian climate. That 3x improvement in efficiency is more like if you are in Southern California. By the way I do have a heat pump while living in SoCal. Works great. Costs to run are modest with the biggest thing is energy is crazy expensive in SoCal. Even with the crazy energy prices, not too hard on the pocket book as it is really efficient. I think the big thing you need to think about, which is almost completely missed in this piece, is how to effectively use a heat pump and even air conditioner in a wide range of climates. You could for example get a Lennox "dual fuel" heat pump where if it is not too cold out, it is a regular heat pump. If it is like Canadian cold out, then it runs a little outdoor furnace to warm the refrigerant. Supposed to be super efficient at extracting the heat from the furnace bit and then warms the place like a typical heat pump would. Another year round option is either buried coils or bore holes in the ground and stuff the coil into them. The idea being underground is a more constant temperature, at least when you go deep enough, so then if it is super cold out, you get the heat from the relatively warm ground and in the summer you dump the heat into the relatively cool ground. Another play on this is say have the coil go around your pool for summer cooling. Water is a lot more dense than air, so is a much better thing to exchange heat with if you are looking for efficiency. Pools are never warm enough, even in SoCal, so a great place to dump heat in the summer, granted you do it right and don't end up with too many issues of a clogged system. Granted pools are high maintenance items so it is up to whatever you are willing to maintain ultimately determining what kind of setup will work for you. Maybe as an alternative have a pre-warming water tank before your water heater with the notion your air conditioner can dump heat into cool tap water. To help maximize efficiency, if you have ever had a pool, the water always stratifies heat wise so warm water is on top and cold water sinks to the bottom unless you go out of your way to mix it. So for your air conditioner running during the hottest part of the day / coming home from work while still hot out, have it draw from the bottom of the pre-warming tank and dump into the top. Then have the water heater draw from the top of the tank. I have noticed my inverter based ACs are far more efficient with cooler outside air to work with, so summer days I have worked late, I have noticed cooling down the house has used far less energy than say mid day cooling on the weekend when I am home all day. This extends that out into say the tap water is 20 C while the outside air is 40 C. The air conditioner using that 20 C water to cool the house may use say 1/4th the power or less for the same amount of cooling. 75% - 80% reduction in power for the same amount of cooling is huge. Then the water heater may draw in say 25 C water to warm instead of 20 C water and use less energy to warm it. Of course add in the super efficiency that Tesla has come up with to the above and you should have vastly more efficient cooling and heating that should work well anywhere depending on the exact setup you use. So for Canada, you best bet is to probably drill holes in the ground or at least so something like the Lennox "dual fuel" system. In SoCal, if I could do the extra water tank, I would be in pretty good shape as well as for people with a pool, if they could tap into that it would be good. I already have an efficient inverter based system with remote control, so already have a big leg up on those with more dumb and inefficient systems.

I was waiting for you to mention that heat pumps won’t work in cold temperatures. have the same problem where I live. They have made improvements recently talk to an HVAC guy and he said that they’ve come out with one that now works down to 22 below efficiently and affectively but they still recommend having an additional heater in the home For heating considering sometimes we get down to 30 below for weeks or even 60 below at night occasionally by the way that’s Fahrenheit for anyone who wants to know. Just a sidenote this is excellent weather if you have a smoker 😋🤤 Good job on the video really enjoyed all the information was a great review of some of the stuff I already knew And the Tesla information was really interesting.

These can run on clean natural gas and my digital Honeywell is fully programmable with a work schedule,day,night etc and is controllable from my phone from anywhere in the USA.

Pause at 10:37. I invested in a Mitsubishi Zuba Central, in Quebec, where we spend weeks at -35C to -40C. Freeze your nose hair cold. And it cranks 22,000 BTU’s constantly because it uses an industrial compressor. And heats a basement and 2 stories. Because triple glass pane windows, insulated everything to the footing. It costs much more than a traditional (clanky) square thermal pump, but at max power sounds like a soft rain shower in db. My point; we don’t need Muskrat to « fix » our Thermo pump efficiency- just plan your thermal envelope and invest in a good system for years of trouble free use.

Without a discussion of latent heat of vaporization, this is a pretty lackluster explanation of heat pumps. The compressor does not actively add heat to the process, it is a side effect. Heat pumps move heat, and they can do this due to the "magic" of latent heat.

Tesla is all about vertical integration, so it seems obvious to me that the next thing they do with their HVAC/HeatPump is integrate it with both solar and batteries. There's a concept called PVT, or PhotoVoltaic-Thermal, where you have a panel that collects both electrons from sunlight but also heat energy from the sun. The solar heat collected from these panels would then be transferred to the heat pump. The heat pump can also collect any excess heat produced by the Powerwall. This would result in cooler solar panels (which produce more energy and last much, much longer) and zero-cost heat energy that can be used to make hot water or warm the house. There are even thermal loops that can transform that heat energy into cooling energy through compressor loops.

The marketing name ‘heat pump’ is a reversible heat pump. In the US deep south all home air coolers are heat pumps… just one way. They last X years. Make them two way and they will last X/y years.

Is Freon still allowed? Is that a Colorado thing that we use a replacement?

I live in the deep south of the Usa. The temp gets below 25* F for 2 -3 days every 3 years. The heat pumps we have are considered to be a failure as they will not keep a house at 70* F when the temp is 40* F or lower. They freeze up and stop working at about 32*F. Many people consider them to be a waste of money.

thermal energy is best in space but under the ground about 3 feet down will be cool around the same temp all year so in the summer it cools you and in the winter it heats you. You don't need to use energy to move heat up you can use low pressure heat pipes for that you only need to pump a liquid up to use it as cooling but it's free heat just need to use a water pump to use it for cooling but moving water is more efficient than running a air compressor

Freon is a brand name of DuPont. Refrigerant is something that boils and turns from a liquid to a vapor at a lower pressure and temperature absorbing heat. Reject heat at a higher temperature and pressure turns a vapor to a liquid.

Huge issue when temperature drops below 20 degrees and the resistance heat kick in Looking forward to new super efficient heat pump that can handle the extra cold days without spiking electricity unsay.

I'm going to give you the inside scoop about how this heat pump is going to work will be multiple small heat pumps just like in the vehicle and what they will do is string them together on the same shaft that way it can gain maximum efficiency and what it will do is physically only run one heat pump per room or two this way you can actually select the room that you want to have colder than the others and you can control the airflow individually to each room you can have heat running in one room and air condition running in another just depending on what the person in the room preferences and individual thermostats for each individual room this would allow ultimate efficiency combined with artificial intelligence to control the entire system as a whole... having all of the compressors hooked up on the same rotor means that they can individually kick in and if there's more than one of them kicking in they both work together so it helps get the other compressors up to speed and cuts down the energy loss. Because the system will be able to have multiple different heat pumps it can run one of them on air condition mode and the other on heat mode which will basically make dry air because once you heat up the air the moisture can be absorbed by the one cooling easier and you can control the actual humidity perfectly. Mark my words this will be how the system will work it will be for new construction and for retrofitting because you're able to hook up the individual ducts instead of the entire manifold which supplies all the ducts...

these are the vital innovations needed for The Future(tm): electric cars, and heat pumps ... also, viking landers on mars - next up, that radical innovation _disco music_ wow, the future sounds like a pretty cool place - I know jimmy carter's really excited by it

What you want to develope is a smart central air system . Most houses have maybe 10 rooms on average and most times those rooms are not occupied which you don't need to heat or cool those rooms most of the time . Same for when you sleep . You only need the bedroom for that climate control bedroom . Also you may want varying temperatures in different rooms . Most central air systems have very different tempature from one room to another depending on the rooms closest and farthest from the air handler . You would needed a smart variable speed motors and smart ducts that limit airflow or raise it depending on occupancy and comfort . Each room would need a monitoring device for tempature and many things do this already . The heat pump itself is not much different than a traditional system . If you have high electrical prices it's not going to lower your bill . The way the air is moved is where you can make the savings . Now their are some companies that have developed these systems but adapting them to existing systems that depend on a specific amount of airflow could damage the blower motor . So that motor has to reduce it's rpms to match any reduced airflow which would need a variable speed motor . The technology is there and the saving s in energy costs can offset upfront cost . The big factor is comfort and that will greatly improve . Let's get going elon . It's there for the taking

Nice video. Finally, I've always been disappointed about how videos state heat pumps simply move heat around. I always felt that to be a dubious comment. I always knew that the refrigerant in an A/C was "COMPRESSED" and from simple HS chemistry that compressing a gas causes it to heat up ( it didn't transfer in from anywhere it had work done on it meaning ... energy in ) it was then pipped to the outside coil to have heat removed from it, before it was taken to the evaporative coil to be allowed to expand back into a gas which when a gas expands it removes heat from the surrounding environment. To me a heat pump, for a residential system, is just deciding which side of the compressor you are using inside your house. Are you using the compression side to get heat in or the evaporative side to get heat out.

An HVAC unit like this would be amazing especially where I live in California

9:17 an EV heater or any electric heater actually have very low resistance. This low resistance (see Ohms law) allows high current flow and heating element to get hot.

You had me up until you said “Freon” might as well just call it “the cold juice” at that point. Proper term is refrigerant, Freon is a brand name.

I would hope that Tesla systems would at least offer high end systems with things that are missing in even SEER2 23 rated heat pumps. Accumulator; Rectifiers (liquid/gas seperators ahead of the expansion valves); Counter flow heat exchanger ahead of the evaporator coil; Desuperator to help heat the hot water when in the A/C mode. A (thermal) solar panel booster when operating as a heater is also a possibility.

Lol in sweden we have used heatpumps since the -80’s became common in the -90’s and is a demand nowdays to pass inspection on new bilding. And there is heatpumps avalibel that works down to -30celcius or you could use geothermal and dont need to worry about outside temp and get better cop too.

The innovation that tesla provided in heat pumps for its cars is not the basic principle that has been known for many decades but the correct sizing and combination of a series of parts that are normally found in a car that are combined into the OCTO valve and other components in a tesla. That is white makes it more efficient. They’ve been able to Combine components in one box,reduce the length of hose by 60% reduce the number of connections by 70% so of course it works better but just because of that, it does not mean that they have some miracle solution for buildings where the biggest single problem is interacting with the building itself which is not controlled. Every parameter and every requirement is known exactly inside the Tesla but those same values are all over the map with the house which is why Tesla will have no advantage and if they’re smart, as they are they will never enter that market.

For air quality , you just need a aprilaire air whole house filter , great product with over 50 years of outstanding performance

Heat pump has been widely in use for residential since 1990’s. Not last 10 yrs as you stated, just want to correct that.

Im a Hvac contractor. They already make air quality product that does better then tesla car filtration and there on the market. However it’s all based off of what people want to invest in there system. I have a dual fuel system and the highest seer trane variable speed heat pump here in michigan. It does quiet well and is efficient to about 17-23f degrees. Then the furnace takes over. They are getting closer to being more efficient but not quiet there natural gas furnaces are still more economically efficient then any heat pump in colder climate. Electric based heating system heat pump and furnaces are 100 percent efficient but not economically efficient in cold climates. Overall having a dual fuel vs just using propane/nat gas is more efficient until certain temp marks in a lot of instances however that is based on how much you will pay if you get a base line product or top of the line product will determine your efficiency. Just like anything you get what you pay for. I’d be interested in seeing what they come up with. However allow temps to change when you leave and return and programming stats to go down at night and go up during the day doesn’t really save you money just to be honest. Every time you do this your system has to reheat or cool/dehumidify the whole house and objects in it. when it does it utilizes more energy then keeping it a constant temp in the house. That’s why having a variable frequency drive on a heat pump maximizes efficiency while maintain most comfort. instead of change temp your change the speed of the compressor creating less energy consumption. You may save a few dollars a year possibly but also could pay more changing the temp and not keeping it constant. All depends on multiple factors. I don’t see him doing much in hvac field that would change anything maybe on the tech side but nothin more. I’ll be interested in seeing if he does though.

Heat pumps only benefit areas where electricity is cheaper than burning natural gas on site. My city is the opposite, though heat pumps would do wonders due to our winters being mild lowest it gets is about 25°F, it's cheaper here to burn gas on site.

Refrigerant is not super cold.. It might boil at - 40 atmospheric pressure but not inside of a sealed unit.. It enters the evaporator a hot liquid. You can manipulate the boiling point of a liquid by manipulating the pressure above the liquid, And it's refrigerant, Not freon! Freon as a brand name Dupont labeled for R22 specifically.

I live in Ohio and run a "Dual Fuel" system. I use the heat pump down to 25F and then switch to the gas furnace at or below 25F. My heat pump is arguably not the most efficient, it was installed 10 years ago, but it is better than running natural gas 100% of the time heating is required. I would say I the gas furnace runs 30-40% of the time heat is required. Newer heat pumps, particularly VRF (variable refrigerant flow) and inverter heat pumps are incredibly efficient down to very low temps. I installed one a few years ago that was rated to heat at the rated capacity down to -13F. Not too bad. I still think there will be times when resistance heat or gas will be required as a back up, especially in colder climates. Curious to see what improvements Elon has really made to improve the heat pump beyond what an inverter or VRF can do.

I have a ground source heat pump with radiant floor heating. It also supplies preheated water to my water heater. Also have a heat pump water heater which is a huge energy saver. I have 8kw of solar which produces enough energy to drive my EV 40,000 miles per year.

I like that he has a tumble dryer with heat pump as a thumbnail for this video, and not a HVAC system

Very good video. I wonder though, why not use the heat pump system to heat the water for the house, or cool your refridgerator, or dry your clothes... why not produce a single unit that will take care of it all efficiently?

I “upgraded” my propane furnace to new gen Mitsubishi heat pump. When it gets cold, my propane furnace worked much better.

Does the Model Y not have a special Hepa air filter set up like Model S and X?

I prefer using thermostats with timers. If I stay up late one night, I still want to heat to turn down and will just use a blanket. Smart homes would most likely increase my energy use.

The Promethius from SG1! Nice! 👍

“Freon” Johnny homeowner😂

When he said "a heat pump has been around for a long time, but has become more common in the last 10 years". I was like WHAT? that's as far as I got in the video. Next!

Can the same heat pump be used to heat the water in your home? If you are using this system to cool your home the excess heat be put to work.

Let’s pray that Tesla develops HVAC systems that use safe and non-toxic carbon dioxide for their refrigerant. DuPont advertised Freon as safe and non-toxic, and this enabled widespread acceptance of refrigeration after WWII, but Freon was extremely dangerous because it disintegrates into deadly phosgene gas---the deadliest war gas of WWI----when it is exposed to open flame, and air conditioning technicians typically used propane torches to search for Freon leaks. No doubt other DuPont hydrocarbon refrigerants are similarly toxic. The trouble is, carbon dioxide is practically free, and it offers no profit for DuPont or anybody else. Remember how firemen, police, and other “rescue workers” suffered a mysterious pulmonary sickness when the World Trade Center in New York was demolished? That is because those buildings used Freon for their air conditioning, and the air conditioning systems were custom-designed for the buildings and could not be adapted to the new refrigerants that replaced Freon. When the buildings were demolished using Thermite, which generates intense heat that melts steel, the Freon was converted to phosgene gas. Small wonder that so many people got sick. Corporate law is an open invitation to commit murder and even mass-murder, because it isolates the investors and officers of corporations from lawsuits, and therefore from responsibility for their crimes. Corporations live forever, and have more legal rights than a living human being. They were a problem in Britain even before the American Revolution, and the American “Founding Fathers” regarded them as a social and political menace. Time has proved them right. Dracula is real.

I’m a HVAC designer. All of technology already exists, and has for decades. Mitsubishi, Fujitsu, Daiken other leading manufacturers have very advanced systems systems with low ambient heat pump, indoor air quality from bipolar ionization, UV filter and ye, HEPA. This premium equipment is less common due to initial cost.

I’m a commercial HVAC technician. Besides the efficiency of the heat pumps constantly improving I haven’t seen anything on the horizon that would replace the ac concepts we currently have. Mitsubishi is pretty much top of the line and has been for a while

Lol. Loved your content again xxxx

Not trying to not pick, but you should know the last ozone depleting refrigerant was R-22, R-410A and R-32 are now non ozone depleting, but do have a “global warming potential” as like CO2