Which statement accurately describes boilers and chillers and their typical applications?

Which statement accurately describes boilers and chillers and their typical applications?

• A. Chillers remove heat by cooling air directly; boilers heat water.
• B. Boilers heat water to steam or hot water; chillers remove heat from a process or space by cooling water/glycol; boilers are used for heating, chillers for cooling.
• C. Boilers produce electricity; chillers produce steam.
• D. Boilers and chillers heat spaces by directly heating air.

Answer: (B)