Heat radiated, warming the chilly room.

Meaning: The sentence is describing how the heat from the fire is spreading out and making the cold room warmer. The heat is making the room more comfortable and inviting.

Choice of Words: Heat is the energy that makes things warm or hot. Radiated means to spread out in all directions. Warming means to make something warmer. Chilly means slightly cold. Room is a space in a building or vehicle where people can live, work, or play.