As Montag watches the women in the parlor, there are several fire-related images. First of all, Mildred is described with a volcano image.
…Mildred ran from the parlour like a native fleeing an eruption of Vesuvius…
Mildred and the other two women are watching their “parlour families,” television shows. The women “vanish into the volcano’s mouth.”
These fire images reinforce the idea that the women are part of a lost society, where people do not really talk to each other.
They were like a monstrous crystal chandelier tinkling in a thousand chimes, he saw their Cheshire Cat smiles burning through the walls of the house, and now they were screaming at each other above the din. (part 2)
When the women talk about the war, they describe how it is so short, and how if the men die they should just move on. They intentionally are distant and unemotional.