3 ms·

Big Clive also did a teardown and analysis of them, including the fault conditions that would make it dangerous https://www.youtube.com/watch?v=cNjA0aee07k http

Big Clive also did a teardown and analysis of them, including the fault conditions that would make it dangerous https://www.youtube.com/watch?v=cNjA0aee07k https://www.youtube.com/watch?v=cNjA0aee07k He also did one on a UK-approved unit for comparison https://www.youtube.com/watch?v=ZwuhFLsowRc https://www.youtube.com/watch?v=ZwuhFLsowRc The units aren't dangerous if installed properly, but they're not many failures from delivering a nasty shock.

arethuza 2y ago
That almost sounds like a bug that could be sold as a feature "the shower with that extra wake up jolt!".
- tracybueller 2y ago
  Well... Not gonna lie, the few times ive been cycled by HV I was very awake afterwards... And then really sleepy...
  - konschubert 2y ago
    How did it happens?
userbinator 2y ago
More analysis (including calculations) from another YouTuber: https://www.youtube.com/watch?v=FuQ_AAkkgIg https://www.youtube.com/watch?v=FuQ_AAkkgIg
- amelius 2y ago
  Is there also some written information to be found somewhere?
  - fragmede 2y ago
    https://youtubetranscript.com/?v=FuQ_AAkkgIg https://youtubetranscript.com/?v=FuQ_AAkkgIg
    - amelius 2y ago
      "We're sorry, YouTube is currently blocking us from fetching subtitles preventing us from generating a summary for you. We're working on a fix!"
oliwarner 2y ago
The major difference being that the UK-approved on is a ceramic heater: a resistive wire suspended in ceramic, encased in a grounded metal sheath (for transfer of heat). Regulations demand fixed cabling, of appropriate size, all on a quick-acting 30mA-leak RCBO at the consumer unit. Ignoring regs is a good way to lose your accreditation, get sued into oblivion so most electricians follow them to the letter and beyond. Paperwork to that fact is required for the installation. If the wire touched the metal, or water got into the element and bridged the circuit to earth, the breaker would cut out immediately. The suicide shower relies on the exposed resistive heater having a lower resistance than the water, and then a functional earth-leakage breaking device. In perfect conditions, they're probably Safe Enough™, but there are so many failure modes. Earth failure (corrosion? never installed? fast enough?), dodgy water chemistry, exposed cabling, an exposed join because the included terminations are only ~15cm. Often installed in countries without rigorous electrical safety standards. Just a bad idea.

arethuza 2y ago

That almost sounds like a bug that could be sold as a feature "the shower with that extra wake up jolt!".

tracybueller 2y ago
Well... Not gonna lie, the few times ive been cycled by HV I was very awake afterwards... And then really sleepy...
- konschubert 2y ago
  How did it happens?

userbinator 2y ago

More analysis (including calculations) from another YouTuber: https://www.youtube.com/watch?v=FuQ_AAkkgIg https://www.youtube.com/watch?v=FuQ_AAkkgIg

amelius 2y ago
Is there also some written information to be found somewhere?
- fragmede 2y ago
  https://youtubetranscript.com/?v=FuQ_AAkkgIg https://youtubetranscript.com/?v=FuQ_AAkkgIg
  - amelius 2y ago
    "We're sorry, YouTube is currently blocking us from fetching subtitles preventing us from generating a summary for you. We're working on a fix!"

oliwarner 2y ago

The major difference being that the UK-approved on is a ceramic heater: a resistive wire suspended in ceramic, encased in a grounded metal sheath (for transfer of heat). Regulations demand fixed cabling, of appropriate size, all on a quick-acting 30mA-leak RCBO at the consumer unit. Ignoring regs is a good way to lose your accreditation, get sued into oblivion so most electricians follow them to the letter and beyond. Paperwork to that fact is required for the installation. If the wire touched the metal, or water got into the element and bridged the circuit to earth, the breaker would cut out immediately. The suicide shower relies on the exposed resistive heater having a lower resistance than the water, and then a functional earth-leakage breaking device. In perfect conditions, they're probably Safe Enough™, but there are so many failure modes. Earth failure (corrosion? never installed? fast enough?), dodgy water chemistry, exposed cabling, an exposed join because the included terminations are only ~15cm. Often installed in countries without rigorous electrical safety standards. Just a bad idea.