Question About Hidden Ship Weapons

[Anaxphone]

Do the Crystal weapons never cause fires, or has the RNG just decided to mess with me over the course of six runs?

[Teoes]

They definitely have a chance to breach, but I think they have no chance to start a fire. I checked the ftl wikia's weapons section and there's no mention there.

[Anaxphone]

Thanks. It seems like I've managed to cause fires (usually when I don't want them) with every other weapon except the Bio Beam or Ions. Nice to know that it won't set fire to things if I need it.