Definition

1. Noun:
   • A heating element that is immersed in the liquid that is to be heated (as in a hot-water tank): An "immersion heater" is an electrical device consisting of a heating element that is placed directly into a liquid, typically water in a storage tank, to heat it.

Usage

• The term "immersion heater" is used to describe a specific type of water heater. It is a compound noun. It is most commonly used in the context of domestic hot water systems, especially in regions where this is a standard installation. It refers to the entire device unit.

Examples

• Noun:
  • We need to replace the old immersion heater in the hot water cylinder.
  • During the summer, we switch off the central heating boiler and just use the immersion heater for hot water.

Advanced Usage

• "To have an immersion heater": to possess or use this type of heating system.
  • The apartment has an immersion heater, so the hot water is electric.

Variants and Related Words

• Immersion heating (n): The method or system of heating a liquid using an immersed element.
  • Immersion heating is an efficient way to provide domestic hot water.

Synonyms

• Electric water heater: A broader term that can include immersion heaters.
• Tank heater: A less specific term for a heater inside a water tank.

Notes

• The term is a fixed compound noun. The core concept is the method of operation: the heater is in the substance it heats. It is not typically used as a verb phrase (e.g., "to immersion heat" is not standard).

Noun

1. a heating element that is immersed in the liquid that is to be heated (as in a hot-water tank)