Fire and Ice

A man stands in a hallway with a pile of white foam on the floor and icicles hanging from the ceiling, then the scene cuts to the same hallway on fire with flames and smoke, before cutting back to the man in the hallway with the foam and icicles, and then a close-up of a hand pressing a button on a Honeywell thermostat that is on fire, lowering the temperature from 71 to 70 degrees.