the.com/flue
the unsung escape hatch where fire's exhaust slips quietly into open sky
means A flue is the duct or passage—typically inside a chimney—that carries smoke, gases, and exhaust away from a fireplace, stove, or furnace and out into the air.
from "Flue" surfaces in English by the 16th century meaning a chimney's smoke-channel, but its deeper roots are genuinely murky—etymologists admit they don't know for certain where it came from. It may be related to an older verb "flue" meaning to spread out or splay (a flared opening), and it's sometimes loosely linked to words for flowing, though no firm ancestor has ever been pinned down. An honestly uncertain word for an honestly unseen passage.
- name origin
- Likely from old English for something flowing or shallow
- draft engine
- Hot air rises, sucking smoke up automatically
- santa's route
- The chimney flue is his alleged entrance
- creosote risk
- Tar buildup inside causes most chimney fires
- organ pipes
- Flue pipes whistle air, no vibrating reed needed
great smog of london — killed ~12,000 people in december 1952 due to coal flue emissions
three mile island — 1979 nuclear plant accident in pennsylvania with flue gas releases
donora smog disaster — killed 20 people in pennsylvania in october 1948 from industrial flues