Heat Pumps Explained - How Heat Pumps Work HVAC

How heat pumps work, in this video we'll be discussing how heat pumps work starting from the basics to help you learn HVAC engineering. We cover Air to air heat pumps, air to water heat pumps, ground source heat pumps, water source heat pumps, working principles, system schematics and working animations. How a heat pump works.
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[@EngineeringMindset]

⚠️ *Found this video super useful?* Buy Paul a coffee to say thanks: ☕ PayPal: www.paypal.me/TheEngineerinMindset

[@KishorKumar-ob7em]

Good

[@JohnSmith-bx1mp]

Helpful.thanks.

[@abbaskayyum9700]

Could you please make a video on vapour injection system in scroll compressors?

[@MyButtsBeenWiped]

01:17 into the video, and the second commercial begins.

[@EwetoobSucks]

Remember when youtube wasn't obnoxiously innundated with excessive commercials ?!? Pepperidge Farm Remembers !

[@joebuslife9275]

I Love the fact that a channel like this can even exist :) We live in great times

[@STEINYY]

No we don´t. the earth has corona

[@davidjessop2279]

Are you being ironic? We face a future of climate chaos and ecosystem collapse, and you think you live in great times? Geothermal energy is energy taken from the Earth's core, it comes from heat generated during the original formation of the planet and the radioactive decay of materials, and is not green in any way. Just because it doesn't cause CO2 emmissions some shallow thinkers imagine it's part of the solution to global heating, it isn't, it's part of the problem, and while fossil fuels are being phased out geothermal is expanding because simple non thinkers imagine it's green. Just repeating low carbon is a mantra to reassure those scared of the consequences of climate change. Dream on.

[@tensevo]

Indeed we do. Kids nowadays have no idea how good they have it. But then, it's always been that way. You need to live a little, try to survive off grid for a while. Then you can come back appreciate glorious civilization!

[@bushybrowsbushido]

@@davidjessop2279 lighten up nerd it's an opinion lol

[@Patrick-pt2vq]

we have the adequate knowledge that came from the mistakes of our ancestors, if we acknowledge every knowledge and failures that they have made I am sure we still have a chance to rewrite this world

[@paulbrown1079]

Been a HVAC engineer for over 30 years was in hospital brushing up watching your video's you never stop learning and also you forget a lot of basics over the years brilliant videos . Are you putting together a book ?

[@abdulokhai4748]

Do you mkake good money doing this?

[@2014Dima]

You bet, Abdul, you bet

[@CommercialGasEngineerVideos]

Keep on learning

[@johnbeatty8297]

These are by far the best and most clear videos that I have found. I use them in my Adult HVAC classes and they benefit my students greatly. Thanks for clear, concise, accurate, and sometimes amusing videos!

[@faustinpippin9208]

yea but i think that the part at: 6:22 is misleading for people who just learn about this stuff from my personal logic/understanding the expansion valve just maintains the two different pressure zones and its not the thing that actually turns liquid into vapor I'm pretty sure that its the pressure drop doing that, and the pressure drop is caused by the compressor but this is just my logic and maybe im just nitpicking... anywa, the video is great

[@jhaveman]

I've been looking for a simple explanation like this. The only way this could be better is if you showed an example of the physical devices for the indoor and outdoor units or parts. And thanks for the great video!

[@fattony123082]

I’m 36 and have been an HVACR tech for 17 years now. Heat pumps have come a long way. I don’t care who says what they are very practical and efficient. Check out the Mitsubishi Hi-2 versions. They give you 100% heat capacity at 5 degrees Fahrenheit and 95% heat capacity at -15 degrees Fahrenheit!!! That’s insane.

[@sheledmikymo]

ApprenticeThatTextstooMuch and the electrical costs are?

[@DragonsREpic]

@@sheledmikymo MUCH lower than using a typical space heater Its the LED equivalent of heating

[@robeddy9381]

@@sheledmikymo Very low compared with heating with gas and especially low compared to electric resistance heat. Heat pumps don't create heat. They use electricity to move refrigerant, which carries or "pumps" heat from inside to outside or vice-versa. That takes a lot less energy than creating heat.

[@jodygallagher8829]

Is it possible to power an air to water heater with a solar panel

[@robeddy9381]

@@jodygallagher8829 Yes, with a large enough panel. It wouldn't take much.

[@JohnFekoloid]

I live in the tropics. Never heard of heat pumps. But imagined it to be a 'reverse' AC unit. Very helpful explanation. Thanks

[@Bolshevik337]

I’ve been checking out your videos for a while now as a student in the HVAC program at Kennedy-King College here in Chicago IL. HOW WONDERFUL !!! 😊👍🏾

[@chrisclarke1458]

That’s a great video, I really like that you stop to point us in the direction of other videos that explain the various stages in more detail. Really brilliant stuff, thanks.

[@Dan-qt7kq]

I’ve been fascinated by this process because it’s in a closed loop, I know a high pressure side and low pressure side, but flipping them is brilliant.

[@martinlucas8274]

Yep, it is fascinating. I just cannot get my head around how on earth it is more efficient than the water tank with a simple heating rod inside. Pushing the coolant (R134a) in your car costs you approx 10% of the total fuel consumption and some considerable power if you have petrol engine 1.1 litre. Even the most typical fridge-freezer - the compressor is using about 500W - to cool 20 deg celsius in maybe 0.5m3 I am not convinced this system is able to produce 70 celsius on even one small radiator and deliver hot water (52Celsius) to the taps. Have the thermodynamic laws changed recently?

[@wiserdaley6624]

I like how Paul explains information. Bravo!!

[@KaiserXionTV]

Those animations help so much. About to start our chapter on heat pumps in class today. This helps so so much!

[@Mmoooossee]

I wish you did a video with graphics. Such as within the pipes. Show each process in detail as it passes each component. Essentially combining all your videos in one. No complaints here. Love your work. I’m just asking as I learn better with pictures and visualizations. One of the reasons I’m attracted to your channel. Thank you

[@rgruenhaus]

I have a Carrier PURON heat pump system installed in 2007 and it is still working wonderful here in Pensacola FL with only a few breakdowns from minor parts from time to time!

[@alonbendov]

I smashed the subscribe button so hard after the first vid I saw. THANK YOU

[@MatthewSuffidy]

Great 'happy hour' text at the top. A bit confused but it seems to do with different modes of the heat/compression relationship.

[@alexfullerton8099]

Hello Paul, I just discovered you KZbin channel. I think it is absolutely amazing. I'm on a quest to engineer the most sustainable home. I'm wondering if this is a topic you might make some videos on.

[@warn3535]

This is the best explanation on KZbin of how an air conditioner works. Kudos to you.

[@juanjerez9465]

Excellent explanation as always. Thank you 🙏🏽

[@lesliechow6003]

This is by far the best video explaining and illustrating how heat pump works. Some other ones on here seem to assume you already have a master's degree in HVAC to understand them.

[@scotthill4742]

I’ll be honest that is much more complicated than I thought it was gonna be. Great explanation!! It’s crazy to think the amount of knowledge you need to have just to be a red seal tradesman!! Kudos

[@albmarku4379]

Great explanation! Great work! Thanks @The Engineering Mindset

[@MukhtarLeker]

The best explanation I found so far, thank you. Will watch all of videos to understand the principle. I want to start this type of business in Kazakhstan in future, so just researching

[@zhunaylin]

Hi Paul. Great work! All your videos are very helpful. I like to know what your thought about heat recovery system use in chiller. If possible make a video about it as well.

[@ke3wh]

Awesome vid. Great refresher for this ol auto AC tech.

[@walteraustinr102]

Great service you offer the HVAC community 👍

[@ronaldl9085]

Thanks for sharing your know-how.

[@nohaste4me]

Here in Sweden the Nibe F1255 and Mitsubishi Ecodan are getting more and more populair with outside temp -30C they still are efficient!! We install them every day. Great vid by the way!👍🏻

[@tyreethasan5126]

Absolutely prefect to need.

[@Firebrand55]

To quote the unforgettable Terry Thomas.....'Oh I say!...what a perfectly splendid, top hole video!"Very clear diagrams, excellent narration, well explained. When I have to have one, I'll back-refer to this vid.!

[@mattierenton701]

Thankyou for explaining in such a way that i understand. I have watched other videos but it just left me more confused, now watching this short video I get it, thanks again.

[@sengundharbalakumar445]

Thanks lot for the video. Can you please tell what are the system parameters in case of a Air to Water Heat Pump? I mean Evaporating Temperature, Condensation temperature for ambient conditions of 12 deg.C. What refrigerant to chose R134a or R410A? We need a hot water supply of 55 deg.C.

[@blixten2928]

Even idiots like me (a historian, with zero knowledge of physics or engineering) can be very much enlightened and informed by this video. I always wondered how my f---g hot air pump worked. Thought it was by black magic. And yet, depend on it so thoroughly (live in Sweden). THANK YOU.

[@CheiithooCat]

Love this channel

[@sudhirgayakwad6766]

I always love your videos very clear and crisp.

[@muhammadshoaibhassan3846]

Great explanation! Great work! Thanks @ engineering mindset

[@klay590]

I apologize if this is mentioned somewhere in the video and I just missed it but I feel like its important to explain that the boiling point of the refrigerant mentioned was at atmospheric pressure. As pressure changes boiling point does too. 410a in an evaporator coil is usually at a boiling point between 36°f and 50°f this is why we get air in the 40-60 range leaving the coil.

[@michaelescobar3746]

Good tip. It makes more sense when you apply that information.

[@dougiequick1]

I worked in aerospace and the facility I worked at had many large buildings and lots of workers ....they did not use conventional HVAC they had a central plant that made steam and also water to all the buildings ....chilled water and air movement kept those building CHILL all summer long and the steam lines kept it all toasty in the cold months and provided hot water ...I was always amazed how well it all worked

[@ssllhh100]

is there any way to recover the energy from the wasted heat in order to improove efficiency ?

[@jasonanderson7343]

ssllhh100 Hi, for an water source heat pump you can use this the wasted energy either heating or cooling if you have a series of outdoor units coupled together.

[@EngineeringMindset]

Can go for a vrf heat pump system. These allow simultaneous heating and cooling kzbin.info/door/k0fGHsCEzGig-rSzkfCjMwvideos

[@corneliuscorcoran9900]

Second law of thermodynamics, with every exchange, our energy storage, is becoming more and more diffuse and less and less usable. I'd imagine you could surround your heat pumps, with other heat pumps, until there was no usable energy left and it was requiring more energy to drive the pump, than was being extracted.

[@EngineeringMindset]

New VRF unit video here:➡️ kzbin.info/www/bejne/apqUiZqZhZano9k

[@vpcoatingandmore.1473]

Thank you so very much!!! Very helpful.

[@MajinXarris]

I love everything about your channel. Even the ads. Kudos bro!

[@EngineeringMindset]

Glad you like them!

[@mohdadnan1888]

Plz pual make videos on plumbing also.

[@Gobbles45]

Excellent presentations Paul, keep up the excellent work.

[@jollyscaria1922]

Daniel whre now plas ianeed contacting whrea nos kamrmer only

[@jollyscaria1922]

Thankyou vrey good welcoms shreing thankyou best

[@jollyscaria1922]

Wire conneactin pleas explaning

[@safetyengineer5805]

Sir. Please explain with animation about fire pump room

[@Howie875]

Everything is relative. Water boils at 212 degrees F at sea level pressure which is 14.7 psi. Have seen it boil in a vacuum at room temperature and it can boil at hundreds of degrees in a high pressure boiler. This is the basis of a refrigeration system. By manipulating temperatures and pressures you can force a refrigerant to either evaporate or condense which will either absorb or release heat. Basically using a refrigerant to transfer heat from one area and release it in another area.

[@harrycave6309]

Just curious when using a reversing valve can the expansion valves just be the basic thermal type or do they need to be an electronic expansion valve thanks

[@davidcruz4611]

Great video. Please clarify which is the liquid line and which is the vapor line. Thanks.

[@brittdevon1657]

Your channel is amazing for videos and learning!! Love it!!

[@YasinYTK07]

Best explainer 👍✌️🎉🎉🎉🎉

[@katiegreene3960]

Could you add a ground air loop to regulate the temperatures for the outdoor exchanger?

[@santoshsah4]

Thank you for video. Why reversing valve is not possible in air to water heat pump?

[@regiusevents9441]

The air filters on our VAV boxes are regularly maintained. However, the filters (screens) to which I am referring are for the heating hot water flowing through the reheat coils. I was told by the installation contractor (Anthony Mechanical) that these screens could stop up and need to be cleaned regularly. I would like to find instructions (or an instructional video) explaining how to remove and clean these screens. Can you assist with that?

[@jameelSirITI]

Really, a very explanation for this heat pumps topic......thanks for video

[@kspades2530]

Incredible, great video and animation, thanks.

[@tonylo.6766]

Thank you.

[@NetZeroTech]

Great video! Nice work. Thank you.

[@RoadRashSpirit]

Edit; watched the video on filter dryers so I now get the gist of it, Brill! Great video, only one thing i dont get, how come the transfer fluid passes through the drier in its liquid state? Sureley this defeats the object of a drier?

[@piercemiller765]

The air to water system , what sort of temperatures as an estimate across most units would you get in the water storage heating coil with no electrical element assistance ? Do they have enough power to heat a house 3 to 4 bedroom rough size on the air to water heat pump alone ?

[@saeidnikbakht765]

Hey Paul! Thank you so much for this very eye catching and constructive set of studies. I am really enjoying them. I think there is a mistake in the link of "Advanced Heat Pumps", Since it is the same as " How Heat Pumps Work". Could you please correct it, so that the interested people could watch a video over advanced types of heat pumps? Thanks again.:)

[@safaabbas620]

Many thanks for the video

[@edt5276]

Nice video but a pointer would be helpful. Sometimes the animation directs attention without a pointer, but a lot of times it doesn't.

[@ryandaddy2044]

thanks man u are great

[@tomkelly8827]

Wow, that is interesting! I wonder what would happen if you used a refrigerant to run through a solar heat collector to warm it up outside? I bet you could make lots of heat and if you rigged it just right, you could run the compressor backwards and have a sort of steam generator. You could make electricity this way

[@nonisco3591]

System like that exist, they are called thermodynamic solar I believe. On a big scale they do use them to generate electricity.

[@delrey-p]

Honestly these videos have made my life much easier

[@souravpaul4642]

Loved it

[@AngelA-fl5hk]

Can "outdoor" air be pulled/exit from/to a solarium or [stabilized] greenhouse wall (or would there be too much moisture/vapour?)?

[@jensastrup1940]

Thank you. The best explanation I have seen 👍

[@cherylm2C6671]

I could spend all semester here!

[@djohn6993]

I've learned more on this channel than my entire 4 years of engineering school

[@ramr7051]

Maybe find a better engineering school then?

[@djohn6993]

@@ramr7051 maybe you pay for it then?

[@johng5295]

Thanks in a million. Great content. Awesome imagination. Grade: A++💥

[@MyGoogleYoutube]

3:20 - now I get it :) Thank you !

[@francoismorin6806]

still difficult to me can you explain ?

[@deankay4434]

I used the exact solenoid with a high flow rate as the fluid pushes down on the oversized valve land for sealing at static pressure. But mine is on an oil accumulator to pre-lube a gas V-8 engine. It is energized with the key on so during starting, it quickly floods the main oil gallery (High-Flow, 1/2" NPT, Viton Rubber Seal; New surplus at 1/10th the cost of Name Brand oil accumulator companies; with pressurized oil to the bearings. This would greatly extend the life of all "Stop-Start" engines in those vehicles. After being an ASE Master Tech since 78, I will argue a room of engineers under the table! 5,000hrs is the 150,000 mile equivalent that GM designs parts, materials and still make them to keep from paying CAFE a fine. It's a law passed by the Clinton administration. Great job on the video.

[@Hassang185]

Very nice

[@petathunberg5794]

Really good video. this is what i was looking for

[@trangofast9692]

I'm confused but this is amazing

[@Clenched.Cheeks]

Watch videos like this at 0.75 speed. I'm in an engineering field but the speed and pace of these videos can still get to ya. Albeit they are great nonetheless.

[@Clenched.Cheeks]

Also, it makes the narrator sound drunk, which I think is hilarious in the context of a video like this.

[@davidalmeida3129]

If i have immersion cooled ASICs pumping the dielctric fluid to a heat exchanger couldn’t I use that as a substitute for the compressor?

[@jameshancock]

I’d love to see the techniques for multi zone/head units. Are they just more piping off the same compressor for each head? Do they go to some form of manifold?

[@EngineeringMindset]

Check out our supermarket hvac video, covered it there

[@harmindersaluja5078]

Good info.

[@zodiacfml]

Excellent video on heat pumps as I kept hearing this being used in other countries. Now that I have seen how it works, it appears that the limit of the system for heat output is the power consumption of its compressor. It seems that a heat pump is less efficient than an electric heater as some heat is lost from the outdoor unit.

[@JanicekTrnecka]

In fact, the electricity needed to transfer heat is roughly at 1:4 ratio. So pupmping 4kW from outside into the house costs you 1kW of electricity. And of course the waste heat of the compressor is not just dissipiated but preciously harvested and added to heat potentially transferred in your house. Those schematics depicted in video are pretty rough, but in principle thats all the magic behind this.

[@JanicekTrnecka]

pure electric heater has "100" pct efficiency but heatpump has 200 to 500 pct efficiency. ( not breaking thermodynamics law, just "stealing" energy from outside and pumping it to higher potential).

[@SUMMERFIELDish]

I can't see how there is any heat when it is 38 degrees out to bring inside

[@SUMMERFIELDish]

My heat /ac pump does not warm the emerg heat has to come on before there is any heat abd then we have to go turn ut off when it starts warming up. This isn't normal is it? I had a heat/ac technician cone out. He Said the thermastat needed reprograming. Which he did and left. No charge but the emerg heat had to come on and then we had to turn it off help

[@zodiacfml]

@@SUMMERFIELDish that is normal. when it is too cold, it freezes the fins on the radiator and the flow of air is less or no flow of air at all. The emergency heat is used to melt the ice

[@user-ks8ce9iy1x]

This is the best channel for mechanical students. Thank you.

[@EngineeringMindset]

See our new video on how to build mechanical versions of electronic circuits? Watch here: kzbin.info/www/bejne/kKecgmqfnZlri8U

[@MattJMT]

Great refresher!

[@nelgchannel9661]

Well explained, Thank you

[@hitesh_blues2353]

Great lesson! Could you please explain how HP dryers accomplish dehumidification parallel to cooling? In food processing, HPD are used for low temperature low humidity drying of thermally sensitive foods.

[@hamichekoussaila7289]

Great video man. thanks the explanation

[@sameerprashadgond9953]

Best video explaining the working

[@munthasirmi777]

Nice explanation

[@offthetrail636]

Awesome Video. I’m a new HVAC Tech and I just bought a house with a Trane Heat Pump Air to Air

[@jasonvoorhees8545]

How has it worked for you? Do you find it efficient? How cold does it get where you live ? I'm in Western Kanada, it's forced air furnaces everywhere up here. Very inefficient.

[@chomiaquitox]

Hello, if you have a monocompressor and two splits or more units, how this behaivor is managed?

[@hamzeh5873]

the refrigerant temp is colder before or after it enters the outdoor unit ?

[@erbeycastillo3387]

Great job man

[@user-kh3zw6tn3n]

good. thank you. nice ..

[@lorenzojuarez4971]

Though Ecco lab.is Patten. The warm water supply is a variable.

[@tranduy37]

this is very useful, thank you

[@Mallanini]

Hi i wanna ask something surplus heat source and outdoor hear source what’s different

[@truerthanyouknow9456]

I didn’t realize there was such a spectrum of heat pump solutions

[@anvil_08]

Classic inverter heat pumps only have 1 expansion valve which works for Cooling and Heating. And on/off models have a small capillar pipe for Cooling the freon

[@tomaszbrzeczyszczykiewicz4082]

Thank You!

[@traceejohnson290]

Hi New Subscriber. Are these type of units safer than the natural gas HVAC units? Also, how often do pumps have to be replaced? Thank you.

[@kuldipsingh6232]

Great work your,videos are awesome, I need to make a project presentation at college can you please tell me how these type of animation explanations is made??

[@mitsos306ify]

Great video!