• 15 Posts
  • 26 Comments
Joined 16 days ago
cake
Cake day: July 15th, 2025

help-circle






  • Heat pumps move heat. In the summer, it’s pulling heat from inside and moving it outside and the opposite of that in the winter.

    Basically, the temperature differential is what makes the difference. The larger the differential, the more energy it has to use.

    In the winter, when it’s 30 degrees (F) outside, and you want it to be 70 inside, that’s 40 degrees it has to move. In the summer when it’s 90 degrees outside, and you want it at 70 inside, that’s only 20 degrees.

    Air source heat pumps, as the name implies, pull heat from (and exhaust heat to) the ambient air. When it’s really cold in the winter, there’s less ambient heat to move inside, so it has to run longer. Some (all?) heat pumps also have an auxiliary resistive heating element to make up the difference which lowers efficiency quite a bit.

    Granted, newer heat pumps can work well down to lower temperatures without having to engage the aux heat than the older ones I’m familiar with, but in a nutshell, that’s why they can potentially use less energy in the summer.














  • Good questions!

    Sadly, I cannot answer either of them. I would assume the battery is replaceable with some effort, and I have no idea about the screen. Considering these are currently pre-order devices releasing in small production-runs, I would imagine sourcing replacement parts would be taking it apart and searching Ali for the part numbers. That said, “where there’s a will, there’s a way”.

    I have not attempted disassembly, but there are two very tiny torx screws on either side of the USB-C port. My assumption is that removing those allows the casing to slide apart. Perhaps when I’m feeling brave enough, I may take a peek inside and document my journey with some photos.

    There also doesn’t appear to be an iFixit teardown yet, and a cursory internet search didn’t reveal any galleries of the juicy innards :(