FTL fire notes

From TheSwiftTiger code diving:

Fire death times after O2 reaches < 10%
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depends on how many fires are in adjacent tiles in the room,

0 adjacent fires: 2.08s - 6.25s
1 adjacent fire: 2.60s - 7.81s
2 adjacent fires: 3.47s - 10.4s

(these can't happen in vanilla)
3 adjacent fires: 5.21s - 15.6s
4 adjacent fires: 10.4s - 31.2s

Fire spread timers (single fire to another tile)
Starts as soon as a fire is spawned

no door system or no doors between tiles:
6.25s - 31.5s
level 1 doors:  //MH seems to be the same for level 0 doors
10.96s - 54.7s
level 2, 3, 4 doors:
62.5s - 312.5s

// MH
Crew all fight the same fire: top-left, bottom-left, top-right, bottom-right.
That's different from crew positioning, and not affected by consoles.
Crew do not switch to higher-priority tile if it spreads there.
However, they will switch if you interrupt them by moving them.
They also switch after a fire goes out, rather than keep same priorities.

Progress against a fire is never lost, even over a jump.

Crew and fire suppression are not randomised:

Human, Slug, Zoltan, Lanius = 10.4 seconds per fire
Engi = 5.2
Rock = 6.2
Crystal = 12.5
Mantis = 20.8
Fire Suppression = 12.5 on every fire simultaneously. Stacks with crew.

Destroyed doors work as level 1 doors for fire spread.

Fire suffocation death timer is paused (not reset) if you re-oxygenate the room.

Crew and suffocation do not seem to stack directly, as they operate on different mechanisms. However, crew removing one fire may cause the suffocation death-timer and spread timers to adjust pro-rata (don't know). Also crew taking out one fire quickly means you take less system damage.

Fire system damage equals boarders.
Fire crew damage: 3 fires = suffocation = level 1 medbay.
1 fire = 2.13333