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Heat Pumps: the Future of Home Heating technology connections heat pump



यह इतना ठंडा है कि यह गर्म है। भाग 2: मैंने इसमें बहुत सारे पुराने वीडियो का संदर्भ दिया है। यहाँ वे हैं, क्लिकिटी लिंकिटी फॉर्म में! छाती फ्रीजर; पुराने जमाने के चावल कुकर के लिए डिजाइनिंग के बारे में वे हमें जो बताते हैं, वे बेहद चतुर पुन: प्रयोज्य हैंडवार्मर हैं जो ठंड से गर्म हो जाते हैं मैंने फोर्स्ड-एयर फर्नेस: द व्हाट, व्हाई, और कैसे और पोर्टेबल एयर कंडीशनर – आपको क्यों चाहिए’ का संदर्भ दिया। टी उन्हें पसंद नहीं है प्रौद्योगिकी Connextras (दूसरा चैनल जो सामान कभी-कभी चलता है): ट्विटर पर प्रौद्योगिकी कनेक्शन: टीसी सब्रेडिट यह चैनल Patreon पर दर्शकों के योगदान के माध्यम से समर्थित है। आप जैसे लोगों के उदार समर्थन के लिए धन्यवाद, प्रौद्योगिकी कनेक्शन स्वतंत्र और संभव बना हुआ है। यदि आप उन अद्भुत लोगों से जुड़ना चाहते हैं जिन्होंने अपना समर्थन देने का वादा किया है, तो नीचे दिए गए लिंक को देखें। आपके विचार करने के लिए धन्यवाद! और निम्नलिखित संरक्षकों को धन्यवाद! क्रिस्टोफर बीट्टी, हेल्प मैं ड्राइविंग लाइसेंस फैक्ट्री रॉबर्ट्स, सैमुअल किरजनर, डैनियल प्रिचर्ड, ब्रैंडन टॉमलिंसन, एरिक लोवेन्थल, जेरेमी सैमुअल्स, मैल्कम माइल्स, डेविड एल जोन्स, मैथ्यू बर्केट, एंड्रयू रोलैंड, स्मिथ8154, केनेथ सीवर्स मोलर, जैकब में फंस गया हूं। काम्फौस, स्लीसडेक्सिया, हर्ले पॉटर, टॉमी मैककार्थी, एंड्रयू बोबुल्स्की, ऑन आइस पर्सपेक्टिव्स, द ग्रेटको, पेटेरी होजॉर्ट, डैनियल डेलेज, नाथन ओबुचोव्स्की, शॉन पुज़ोन, ब्रेट होम्स, वाइकॉप, केसी ब्लैकबर्न, डेवोन हॉजसन, ज़िम्पन, फिल्म निर्माता आईक्यू, आईक्यू, आईक्यू, आईक्यू, आईक्यू। टीजे ज़िएंटेक, वर्नोन, टन ब्रांड्स, स्कॉट राइट, कोरी हॉवर्ड, रेज़ोनेंट, थानासिस डिमास, एडम क्वार्टारोलो, मार्क ग्रोनडिन, हेक्सद ड्रैगन, क्रेग कोलाई, डैनियल बैरेरा, मार्क स्ट्रैडलिंग, पीटर सोडके, डी डब, जोसेफुगे, क्रिस्टियन स्कीब, एंड्रयू। लिएंडो, निक, द मास्टरपीस, स्टर्लिंग, क्रिस कोडी, जेसन पोर्टवुड, चाड फर्टिग, जोसेफ हौटलिंग, बेन टुकी, जोश ब्राउन, जो जॉनसन, डैनियल डगर, क्रिस्टोफर लोवेल, ओलेग कोर्सुनस्की, माइकल साची, अली एलम , डैन एलन, जेनबैंग जिओ, जेसन वॉटसन, मार्कस तोवारा, बार्की डॉगगो, एक्ट्रा, मार्टिन एम्बेह, रीड फिशलर, डैनियल मेघेर, जोएल, क्लेमेंस, बिल बेट्स, सेंट्रोनियास, डेनिस वॉल्श, एलेक्स वॉरेन, पॉल रॉबिन्स, माइकल गर्नोथ, कैनियनएमआईडी। लेस, कीनन फ़िनुकन, इयान क्लैंटन-थ्यून, रयान प्रैट, पॉल न्यूटन, ग्रेग गोल्ड्स, थियो कीलर, टायलर अल्बेरिको, बेन रैटनर, वाइल्डमार्टिन, पॉल शार्प, क्रेग ब्रिकी, ज़िडी, ब्रैंडन, कार्ल कोर्नेल, डेनिला फेड्याशिन, एडम, पैट्रिक माजवेस्की , रयान काम्हुइस, डब्ल्यूबी, एम्बिएंट सियान, सैम कैलेंड्रा, वोल्फगैंग ग्श्वेन्डनर, जोज़ेफ़ सोकोलोव्स्की, विल प्रेस्टन, क्रिस्टोफर ओल्सन, रेक्सराथ, कोर नीलसन, स्टीफन अमर, ब्राइस, एंडी 24x, डेविड जेरोस्लो, चार्ल्स मैकडोनाल्ड, टिम जोन्स, क्रिस इको 762। मुडगे, रेमंड कॉउट्स, इयान स्पेंस, जॉन डी विट, माइक ए, एलेक्स डॉज, हिप्प1एग्यू, जस्टिन डेरलेथ, एल जेफ, नियोन725, एमिली ईसेनबर्ग, मार्क क्रिश्चियन, डायलन लेब्लांक, बार्ड, मेगन लवेट, एलजीआर, नॉट्सिन वुल्फ, माइकल रीगल, पॉल कवानाघ, इसहाक क्ल आर्क, सीन हेरेल एल, सेलेक्ट्रिक, कीथियस, जूलियन हल्डेनबी, सेब बाकानू, मौरिसियो, हंटर थॉर्नबेरी, ऑस्टिन सी बोर्गर, गेब कुक, अनापन, हॉजकिन लेब्लांक, माइकल पैट्रन, सोनिक ईथर, माइक क्विक, कैलिस्टो, एडम, लुकास, माइक्रोसेर्फ, डैनियल क्राउट, जॉन डी लार्जेंटेय, लुका सैनज़िन, पीटर हिलियर, पीटरएच, विलियम होल्ट, एथन हैमेल, ग्रांट कैम्पौ, एल्स, माइकल डन, केनी, रिचर्ड हिक्स, एटलस पुप, लेवी मैया, माइक रोच, साइमन जेनसेन, जॉर्ज कैबलेरो, मैथ्यू श्वार्ट्ज, जीएस, आशका, मिस्टर यान, मैथियास फीस्ट, रेडआर0जे, एडन सी, थॉमस फुच्स, मार्कस वुस्ट, एलन हॉलैंड, डैन बोल्डेन, फिरोज दलाल, डेविन रोसेंथल, रे हार्डमैन, जी कोवेल, केविन हैमिल्टन, चेस टार्सन, क्रिस डी’अरपा, मार्शल कर्टज़, मैट गोल्डमैन, हर्फ़ ड्यूर, शॉन मॉरिस, मिगुएल गोंजालेज, ब्राइस ओनटिवरोस, केनेथ ए क्यूसन, जॉनथन रीले, चार्ल्स कॉर्बिन, साइमन एरो, ब्रेट वाल्टन, मार्टिन श्रोडर, जॉन वैन अट्टा, लेकवॉक 3 आर, हेडन मैकफी, डैन माकू, मार्क इंजर्ड , पॉल डेमर्स, माइकल सैंडलर, जैकब हैरिंगटन, क्ले, बेंजामिन डेमिंग, थोरबजर्न मे एर, एबेन लोव, M1GEO , माइकल केग्लर, क्रनो , कॉलिन मैकडोनाल्ड, श्लोमी बोरोवित्ज़, क्रिस्पिन, जान बोरचर्डिंग

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Heat Pumps: the Future of Home Heating

Heat Pumps: the Future of Home Heating

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Heat Pumps: the Future of Home Heating
technology connections heat pump
पैसे कमाने के और तरीके देखें: यहाँ और देखें
पैसे कमाने के और तरीके देखें: यहाँ और देखें

40 thoughts on “Heat Pumps: the Future of Home Heating technology connections heat pump”

  1. Hello! Here's a comment with some extra info on efficiency and the metering devices used in heat pumps.
    First: my wording on the efficiency drop in the cold was sloppy, and it sounds like I'm suggesting the need for defrosting is the only reason it loses efficiency. It is a reason, but not the biggest one – that's simply that as the outdoor temperature gets colder, it's harder for the refrigerant to absorb heat because the temperature difference between it and the air gets smaller. In fact, in the clip when it was -10°, it wasn't building much frost at all because it was very dry. But that was so cold that the refrigerant could barely capture any energy, which is why its output was tepid. And to be clear, its rating down to 5° doesn't mean it operates at full efficiency at that temperature. That's just the lowest temperature that it can sustain its rated heating output.
    Re: metering devices. I still somewhat suspect that the mini-split has a capillary tube and largely because of its cost. It was surprisingly inexpensive (this unit was about $1000, but the smallest units from this same manufacture only cost $750 and are fully capable heat pumps). If you use a thermal expansion valve or similar, you need one for each direction which adds to the system's complexity somewhat. I'd still argue that it hardly does – it is, after all, one or two small components of a large system. But simply reversing the refrigerant flow doesn't work on its own in systems that use these more complex metering devices. They'd need some additional piping and valve work (some such valves were visible in the demo rig) to accommodate two metering devices for each direction of flow.

  2. I've lived in many places where the winter temperature didn't usually get below 5 C and the air conditioner doubled as a heat pump. Although you could use the heat pump to heat your home (or the room), it didn't do it all that well and you usually had to have a space heater in the room you were in if you really wanted the room warm. In colder climates where the winter temperature was much colder, you always had some better way to heat the house because a heat pump just wouldn't cut it.

  3. Since I had a new heat pump installed 7 years ago the thing never worked right. The installer gave up and after 3 years and the warranty was up, it cost over $300 USD each time they would come out (each fall). Something to do with something g card an X valve. Two of these later it sti does the same thing: when changing from cooling to heat, it trips the over pressure limiter. So we have to use it on Emergency heat when it gets cold, that get expensive quickly. U had older model heat pumps in different homes before and they worked perfectly. They could keep us toasty warm down to about 22°f outside temp. This newer 400 something coolent is not anywhere near as good as the older 134A .

  4. Thats only Physics,i dont know what you had learned in School,i had that at 4 grade.
    But you need a Plumber whos counting what size you need to heat your Home.
    You need more Gas to keep the Circiut running.That need an Expert to do it.
    Dont expect that your AC heat the whole House,it had to be Bigger.
    It can be dangerous to make a Heater from youre AC,the Companys want to go save.
    Thats why it give Rules and Lawsuits,they sue you up to 2000000 Dollars for a
    Coffee on your Trowsers.It works,but you need a Backup for extreme situation like a Blackout.

  5. You can see the phenomena in a can of duster for computer keyboard. The spray can gets cold. In an a/c the compressor keeps the spray can full in a closed loop. Seems like when a liquid turn into gas it gets colder and when gas turn into liquid it heats up

  6. I don't know where you're at, but I'm in northwest Ohio, the electric company has been offering a rebate for a heat pump. There is one at a house I considered purchasing that looks a lot like the one your patron has. The house is located in the country, where there is no natural gas lines, so even though it gets really cold here, it's still going to be more cost effective than baseboard resistive heaters.

  7. Being engineer, and knowing well the internals of the A/C and Heat Pumps, i have to recognize this is one of the most educational and professionaly edited video I have ever seen. Congratulations!
    Best regards from Madrid,
    Jose

  8. ok I find this hard to believe. I lived in Florida for 25 years in a home heated by a heat pump. It was a newer, supposedly energy efficient unit but whenever the outside temp fell below about 45 degrees the emergency heat coils would turn on. They were very inefficient and costly, like trying to heat your home with an electric stove. The service technician said it was normal operation for a heat pump set up.

  9. Great video. I replaced central AC with 4 split inverter systems five years ago. They have saved me a fortune in this TX heat. DIY install and repair info is easy YouTube find. There is an easy DIY way to add backup heat using a tank-less on demand gas hot water-heater, and small pump. Use cooling coils (auto parts store) placed on top of air intake. GOT HEAT. TX grid failure. This OLD Boy Scout is always prepared. Big generator chained to a tree and house filled with strangers.

  10. At 2:37, "What we call temperature is really…", well sort of. At the risk of appearing fussy and pedantic, according to my high-school thermodynamics class, a temperature T is a parameter (a single scalar number) that is used to define a DISTRIBUTION of energy , called the Maxwell-Boltzmann Distribution, in a closed system that is observed in nature when the energy of the system is in contact and in equilibrium with an infinite heat reservoir at the temperature T.

  11. Why consumers don’t use heat pumps more is because the initial replacement cost is greater than conventional AC systems. Unfortunately people can’t see past the right now. I know I sell HVAC equipment. I try to inform customers the best I can to all available options. Some systems can save people money using higher efficiency equipment, but most the time people revert right back to the minimum expenditure right now.

  12. Pioneer mini split ducted concealed is what i have, high efficiency even in the cold winters of New York. It's some machine and way cheaper than Mitsubishi.

  13. If engineers can figure out how to make these work down to -40 C with a COP of at least 2 or so, they would work wonders where I live, the humidity gets so low on -30 and -40 degree nights that we won't really have to worry about defrosting the coil.

  14. When an unusual cold spell sent temperatures where I live down to 8 F, I used a heat-shifting trick to keep my electric bill from skyrocketing. In mid-day when the temperature rose into the low 40s, I turned my heat pump on and set the temperature in the 80s. When it reached that temperature, I shut it off and coasted through the night, letting the inside temperature drop into the 50s. The next day I repeated the cycle. I was only taking the heat from the outside when was warmest and thus cost the least to pump indoors. You might do a video on that.

  15. I am surprised nobody is thinking of combining the gas furnace with heat pump, providing majority of heating in mild temperatures and using the gas in the extreme weather. And it also provides cooling for summer

  16. This is a nice theory, but until someone can tell me about their experience with air heat pump in winter and their bill, for 2 winters, I will be not jumping a gun.

  17. Just as I was watching this, my one month old split decided to defrost (it's 0 degrees celsius and thick fog outside) so I finally took the opportunity to see how fast it goes.. I was amazed how it literally whent from a block of ice into a waterfall under like one minute… This is currently the only heatsource in my living space, as heating only with gas is expensive AF, so I decided to give heatpumps a go. We'll se if its cheaper or not. Have to admit, that Im keeping a steady 27degrees inside with this thing, instead of the 23 I got with gas (trying not to go broke on gas bills)..

  18. I noticed that new houses in Germany where I live are all being built with heat pumps. On top of that the houses are all highly thermally insulated. Triple pane windows, floor, walls and roof insulation to the nth degree. If the heat pump could be powered by a photovoltaic system (at least during the day) that would relieve any possible strain on the grid, especially with all those EVs being recharged.

    Our home in Greece is also highly thermally insulated. We use a passive solar heating, ie large windows on east, west and south sides of house. There is a large capacity heat pump for the upstairs living area and smaller units for the bedrooms. The temp, even at night very, and I mean very, rarely, drops below freezing. For the bathroom we use a portable electric oil radiator heater. We also have a solar powered water heater. We also have a wood burning stove upstairs. Wood is cheap and plentiful here. If we lose electricity (it happens often here, sometimes for hours) we have the wood burning stove for heat (cooking done with propane, generator backup for fridge and freezer). Rain water is collected in a large cistern (65 cubic meters). That works for us year round. Of course, we have to be conservation minded with electricity, (wood) heat, propane and water. But it works for us.

    When I get some more money I would like to put in enough photovoltaic to run the house completely off grid. There are homes here that do just that, and they are BIG ones to boot!

  19. i heat my RV with the refrigerator
    i found that the refrigerator has coils on the back that vent heat to the outside.
    i built a valve in the vent so in the winter i can rederect the warn air from the back of the refrigerator into the RV during the cold of winter and to the outside during the summer.
    between my refrigerator and heat from my big screen tv, my rv stays warn down to outside temps of 30 degrees.
    i also have 1 inch foam panels in all my windows that keeps out the heat of the sun and cold of winter.

  20. Here's another idea: dig a deep hole for a 4000 gal septic tank. Place the tank and run water lines (for heat exchange) inside it, then insulate the top of the tank. Cover the tank with at least 4 ft of dirt. Use the water tank to collect rain water, then use it for irrigation.

  21. Such a reversible big-box-outside-in-the-backyard setup would be beneficial for people in Washington and Oregon states where heating is common, but Air conditioning is nowhere near as common due to hot days being so infrequent 🤔

  22. 27:50 "…electric resistive heating, which will always work…" Have you considered that a winter storm will often shut down your grid power and you're sorry out of luck? A natural gas automatic crossover generator will be essential under those conditions. Some years ago, a gas-fired air conditioner-heat pump was available (the York Triathlon system) but it proved so troublesome that very few were installed.

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