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A chimney is an architectural ventilation structure made of masonry, clay or metal that isolates hot toxic exhaust gases or smoke produced by a boiler, stove, furnace, incinerator, or fireplace from human living areas. Chimneys are typically vertical, or as near as possible to vertical, to ensure that the gases flow smoothly, drawing air into the…
History, Applications, Measurement & Standards
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chimneys flue used gases industrial air gas top stack draft fuel combustion concrete use built metal liners also often inside
| Subject | Predicate | Object | Confidence | Src |
|---|---|---|---|---|
| Chimney | is a | architectural ventilation structure made of masonry | 0.90 | text |
| Chimney | is a | driving force that moves the required combustion air into the combustion zone and also moves the flue gas up and out of the chimney | 0.90 | text |
| cracked tiles | instance of | although it is the only liner that does not meet Underwriters Laboratories 1777 approval and frequently they have problems | 0.80 | text |
| improper installation | instance of | although it is the only liner that does not meet Underwriters Laboratories 1777 approval and frequently they have problems | 0.80 | text |
| castles | instance of | especially for tall structures | 0.80 | text |
| great manor houses | instance of | especially for tall structures | 0.80 | text |
| San Francisco | instance of | Government housing authorities in cities prone to earthquakes | 0.80 | text |
| Los Angeles | instance of | Government housing authorities in cities prone to earthquakes | 0.80 | text |
| and San Diego now recommend building new homes with stud-framed chimneys around a metal flue | instance of | Government housing authorities in cities prone to earthquakes | 0.80 | text |
| squirrels | instance of | which may degrade integrity of chimney masonrynesting or infestation by unwanted animals | 0.80 | text |
| racoons | instance of | which may degrade integrity of chimney masonrynesting or infestation by unwanted animals | 0.80 | text |
| or chimney swiftschimney leaksdrafting issues | instance of | which may degrade integrity of chimney masonrynesting or infestation by unwanted animals | 0.80 | text |
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