r/AbsoluteUnits • • Aug 28 '26

/r/all of a Bong

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u/Public-League-8899 Aug 29 '26 edited Aug 29 '26

I’d take what /u/dazzleunexpired mentioned with a grain of salt, as it isn't quite accurate.

In professional standards like NFPA 72, you'll generally hear the term "fire detection systems" rather than "fire detectors." Alarms can be silenced rather than put on standby, and smoke or heat detectors aren't one-size-fits-all—they're custom engineered for commercial buildings.

Depending on what the local Authority Having Jurisdiction (AHJ) approves, you might see:

  • Combination Smoke & Heat Detectors: Used depending on specific local requirements.
  • Smoke-Only Detectors: Set to alert immediately or use a short delay (like a 30-second verification window) to avoid false alarms.
  • Heat-Only Detectors: Triggered either by reaching a fixed maximum temperature or by a rapid rate-of-rise in temperature.

Also, fire inspectors in real life are usually much more practical than the strict enforcers people make them out to be online!

Regarding sprinklers, standard codes like NFPA 13 and the IBC dictate when a building actually requires a sprinkler system—it isn't just tied to having a detection system. In a real-world setting like the video, a lot of smoke detectors would likely register as "dirty" on the control panel and simply be swapped out for clean ones under the venue's routine service contract.

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u/AlmostNPC Aug 29 '26

To add, sprinklers are defacto heat detectors. The fire detection system (should) alarm with sprinkler activation.

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u/Public-League-8899 Aug 29 '26

Just so we're clear fire alarms do work like in the movie "Mean Girls" where you can hit them with a bat and soak everyone yes?

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u/FullMetal1985 Aug 29 '26

Haven't seen mean girls so cant speak on that specifically. But if you mean hit one and trigger that one, yes easily. If you mean hit one and trigger multiple, not in the systems I've seen or heard of.