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water heater

American

noun

a household appliance consisting of a gas or electric heating unit under a tank in which water is heated and stored.

Etymology

Origin of water heater

First recorded in 1875–80

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

Its piped town gas business will likely be supported by network growth and residential gas water heater penetration, the analyst says.

From The Wall Street Journal • Feb. 4, 2026

Hard water is caused by mineral buildup, which isn’t bad for your health but can create limescale on appliances like your water heater.

From Los Angeles Times • Jul. 22, 2024

Draining and flushing the water heater once a year plays a vital role in keeping it in good shape, by removing sediment buildup.

From Seattle Times • Feb. 29, 2024

When he looked out, he realized his neighbor’s water heater was just a few feet from his view.

From Los Angeles Times • Feb. 15, 2024

Doc watched his progress through the windows And then wearily he got a broom from behind the water heater.

From "Cannery Row" by John Steinbeck

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023