AIRCON ALIMENTAT DE BATERIE//DC vs AC AirCon-Episodul 146

42 thoughts on “AIRCON ALIMENTAT DE BATERIE//DC vs AC AirCon-Episodul 146”

1. did you guys look at heat pumps? tesla heat pumps, not the giant home units.

2. This AC Unit sounds quite amazing! Cant wait to see the results! and price?

3. phukin hell dude …Nice work

4. Living in North Carolina, and having an Off Grid cabin that I'm looking at putting Solar with battery storage on, these interest me GREATLY!

5. Great news! Thanks!

6. I went to A/C school in 1961 I found that chemical companies don't give a fiddler's damn about how hot we get it is all about doing the standard thing like your doctor. While we get sicker they make money. Do a little experiment place 12 ounces of water in a small bottle and put a fitting on the lid. Then draw a perfect vacuum on the bottle when about one ounce of water is gone the temperature water is 36 degrees. All a/c units have a head pressure of about 200 psi. The vacuum required is less than -15 psi so which will take the most energy. This is a little game for the mind.. If you had a 12-inch pipe 100 feet tall being caped on both ends and a fawcett on each end place an old wash tub of water at the bottom when you pump water to the top after bleeding out the air. When the pump is off the water will fall to 33 feet and 11 inches. This is all the atmosphere will support. The temperature at the top will go down to 36 degrees this cold water will not stay at the top it will fall and be replaced with warmer water. Our overlords don't want us to use water as a refrigerant.

7. I'd be interested in how this would work on an RV. 12/24 V Dc is the way to go. Refrigerators have already moved to that format.

8. Did you consider the Frigomar units?

9. Sailing Nahoa , installed DC air in there cat.

10. The aircon sounds good 😅

11. Hi, did you consider using Mabru units? They are 12V, but made out of copper and are also up to 12000 BTU.

12. Love this! I was looking at a DC system for my Airstream.

13. Would also be looking at using heat exchangers to use the waste heat from the cabin cooling to a heat pump hot water tank, the other thing i would do is put plumbing in so you can hook up a radiator or even a couple of IBC's when on the hard to keep the aircon functioning.

14. Hey Ty I bought a 24v aircon from China in the beginning of this year. I fitted it under our main cabin bed. It’s a 12000btu unit and works like a dream. We are currently in Malaysia ( Langkawi ) duty free and I gave the info to friends who bought some 12v units. They are all working great. The temperatures out here are insane. They do a 48v unit but we run 24v so I never looked into it. My unit cost us $1700 including the shipping to Thailand at the time as we were there. The Company in China have been very responsive to all of us and we are pretty happy with the units. Any other comparable DC aircon this side is more than double that price!!

15. Hey guys, great video….HVAC is right up my alley after 40 years and i love how you covered it! We just used your code for Annapolis and saved $20! See you guys there…. Dave and Tina : )

16. Sounds fascinating. I will be watching this with interest. You are a very talented guy who it seems knows a lot about a lot. Great presentation skills Tye. Bring on the next episode 🎉

17. Awesome!

18. Looking
    For more info. 👍👍👍👍👍👍👍👍👍👍👍💯

19. We have 2x 220v 17k BTU units that have VFD installed on our Leopard 50. They did a good job of keeping us cool in harbortown and here in Isle of Hope this summer when temps got to around 92-3 every day. I agree with you, most energy use numbers do not consider the water pump draw, which is significant.

20. Looking forward to seeing your results!

21. I really like the variable speed compressor.
    Other than that the numbers aren‘t really THAT impressive. The factory-installed Cruisair units on our Leopard 48 consume as follows:
    12kBTU units in the hulls – 800-850W from the 48V battery system (so not the wrong AC numbers calculated by the Cerbo) including inverter loss.
    16kBTU unit in the salon – 1100-1200W including inverter loss.
    No idea why the units on the 50 use that much more or whether it‘s a wrong readout but a MultiPlus 5k could run all 3 AC A/C units without breaking a sweat.

    In the end those systems are just heat pumps – whether they‘re heating or cooling. You won‘t miraculously find a 50% efficiency improvement in that.

    I wouldn‘t replace a running AC A/C with it. As you‘re buying new I like the idea. I just hope „China“ survives for more than a year. 😉

22. This was one of those videos I am here for, that I only see here. Projects like this make you what you are and special in my eyes. Thank you!

23. Can’t wait for the results. Waiting to fit some AC on oceanis 45.
    Would love to put in some 48v alternator and fit a a 48v dc. Still unsure which battery that can take that kind of charge. A lot of drop in seems to have smallish bms.
    Did you look at thermodynamica? A bit like a chiller system except it runs refrigerant to different part of the boat. Though it’s AC powered.

24. I will be very interested to know how this works out. Biggest problem for ac aircon is the starting current, do you happen to know yet how the compressor amps at start up are dealt with differently than an ac unit?

25. i didnt realize it was the original owners maiden voyage!! guess i missed that..

26. Al;most the same as VRV systems

27. Lovin it! Great info!!

28. Didn’t know the previous owner of your cat sunk if on its maiden voyage. Very amusing.

29. Awesome episode!

30. Great video! Before you showed your solution I was wondering if you could use a 48v motor connected to an automotive compressor?

31. Great! Can't wait to see the numbers.

32. So exciting and hope that your new solution design works as you hope!!🙏

33. I wanted a SAILING channel not a DIY channel, so i unsubscribed.

34. Good stuff. Clark is an amazing engineer.

35. EMILY & CLARK ARE THE BEST… I learned so much about all aspects of sailing from them..

36. Looking forward to the results, A/C on our 34' Catamaran is a project we have on the list of things to do.

37. Did you consider the Velair brushless variable speed compressor 110v units?

    I just put their second gen 10k btu unit on my Manta catamaran to cool the aft two queen bed sleeping cabins.

    Down in eco/sleep mode after the initial cool down I’ve been around 70-80 12v amps per night not including the raw water pump.

    I’m swapping to a DC water pump which should lower the amp draw even more but
    I’m still waiting on parts.

38. Looking forward to the install!

39. Truly love the breakdown of all the projects you tackle. Did you learn all this on the fly or do you have a background in engineering or are you just a serious weekend warrior with mad skills? lol. Can't wait for you and the fam to hit the water. Cheers and all the best.

40. I’m looking forward to this series. We chose a high-efficiency, stand alone 24V unit from the Italian company Termodinamica for our keel bot. As you have probably seen, Boat RX has done some impressive projects with equipment from this company. It will be interesting to see how your experience lives up to your hopes and dreams. Good luck!

41. I really hope this works as advertised. We would love to be able to install 1-2 of them on our 41’ Formosa!

42. Have you guys announced times for Annapolis?

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