heat exchanger

American  

noun

1. a device for transferring the heat of one substance to another, as from the exhaust gases to the incoming air in a regenerative furnace.

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heat exchanger British  

noun

1. a device for transferring heat from one fluid to another without allowing them to mix

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Etymology

Origin of heat exchanger

First recorded in 1900–05

Example Sentences

Our Bosch dishwasher hummed but refused to wash, so I replaced the clogged heat exchanger.

From The Wall Street Journal • May 2, 2026

Once heated, the air then indirectly heats the incoming ventilation via a heat exchanger.

From Science Daily • Nov. 19, 2024

Geothermal systems bring heat from underground using piped fluids, then use a heat exchanger to transfer it to a building’s ventilation system.

From Seattle Times • Aug. 13, 2023

Binary power plants create energy through a heat exchanger “with no emissions whatsoever of geothermal fluid or gases,” he said.

From New York Times • May 17, 2023

He played host to a large family reunion, replaced the heat exchanger in his boat, and transformed the ramshackle greenhouse into an elaborate workshop.

From "Class Matters" by The New York Times