The song shares certain lyrical themes with "Your Love (Deja Vu)
"They're both definitely two of the songs that are about relationships and sort of knowing that they're doomed," Dave Bayley told ABC Audio.
He added that "Heat Waves" could be considered the "sequel" to "Your Love."
"'Your Love' is sort of realizing that person's gonna keep hurting you, and that you can't save this thing... it is doomed," Bayley explained. "And 'Heat Waves' is kinda realizing that that's OK. It's just accepting that you can't always make everyone happy."