It seems there is a mistake in the picture example on page 8 regarding the Boiler Room. As I understand it, the tentacle/brain worker should receive 2 food (one from the reactor space and one for his tentacle bonus), and 4 coins (two because it's a tentacled worker, one from the reactor space, and one for the tentacle bonus). [The 3 victory points part of the picture is correct.]
In other words, it seems the pictured resources did not include the tentacle bonus of one food and one coin.
Am I misunderstanding this?
Would it not only be two coins still for a tentacle and and brain? One for the reactor bonus and one from the tentacle bonus. If the worker was a brain/tentacle, it doesn't get any coins on its own as only the claw worker generates two coins when placed in the boiler room.