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ductless

  • a word derived from duct.
    duct
    noun
    any tube, canal, pipe, or conduit by which a fluid, air, or other substance is conducted or conveyed.

Example Sentences

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British Gas says, external such "ductless systems" are one of the most common options for UK homes.

From BBC Jul. 9, 2026

But Dymond said some are in such bad shape that it’s best to abandon them and move to a ductless heat-pump system.

From Seattle Times Mar. 6, 2023

Or, depending on your house, you might want a multi-zone ductless system, with a single heat pump outside connected via two pipes to each indoor unit.

From Washington Post Jul. 5, 2022

“With the ductless heat pump running all the time, in both 100-degree days or 10-degree days, the electric bill is never more than $25 a month.”

From Seattle Times Dec. 19, 2021

Sometimes those which do nothing but furnish these secretions are spoken of as "ductless glands," from their structure.

From Taboo and Genetics A Study of the Biological, Sociological and Psychological Foundation of the Family by Melvin Moses Knight