an electrical device, usually thermostatically controlled, for heating the liquid in which it isimmersed, esp as a fixture in a domestic hot-water tank
immersion heater in American English
an electric coil or rod that heats water while directly immersed in it
Examples of 'immersion heater' in a sentence
immersion heater
She also realised that she had not switched on the immersion heater so there was not enough hot water for a bath.
Erskine, Barbara MIDNIGHT IS A LONELY PLACE
But I'd forgotten to go to the shops and the immersion heater wasn't on so there was no hot water.
Adam, Paul A NASTY DOSE OF DEATH
The fire was lit, the water hot- she had left the immersion heater on to be sure - the door was locked, and she had allies.