Definition

1. Noun:
   • A device for heating and storing water: A "hot-water heater" is an appliance that heats water and stores it in an integrated tank, making hot water available for domestic use.

Usage Examples

• Noun:
  • The plumber installed a new hot-water heater in the basement.
  • If the hot-water heater is leaking, it needs immediate repair.

Advanced Usage

• "to replace a hot-water heater": to install a new unit in place of an old one.
  • We had to replace our hot-water heater after fifteen years of service.

Variants and Related Words

• Water heater: A more common, general term for any device that heats water, which may or may not include storage.
• Storage water heater: A technical synonym specifying the presence of a tank.
• Boiler: A device for heating water, often for central heating systems, which can sometimes be confused with a hot-water heater but typically serves a different primary function.

Synonyms

• Geyser (chiefly British English): An apparatus for heating water.
• Cylinder (in some regional contexts): Refers to the hot water storage tank.

Notes on Meaning

• The term "hot-water heater" is considered redundant by some, as it literally means "heater for hot water." The more standard term is simply "water heater." However, "hot-water heater" remains in common usage to specify the appliance's purpose clearly.

Noun

1. a heater and storage tank to supply heated water