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

See Examples For:

heat exchanger

The need for cooling meant redesigning the combustion chamber itself, and incorporating a new air-to-water heat exchanger.

From The Wall Street Journal ● Feb. 12, 2026

The secret sauce of Hotol was heat exchanger technology, an attempt to cool the super-heated 1,000C air that enters an engine at hypersonic speeds.

From BBC ● Jun. 2, 2025

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

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