Seems to be wrong: http://medievalcookery.com/notes/broccoli.html#%3A~%3Atext=The+popular+belief+that+broccoli%2Cavailable+evidence+to+support+it.

That fan is not very standard though because it is a low profile 90mm. I only found a single replacement option thanks to a reddit post about this machine: Thermalright TL-9015W.

The default cooking oil is usually rapeseed oil aka canola. Has no taste and has a high smoke point.