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Fires improv'd: being a new method of building chimneys, so as to prevent their smoaking: in which a small fire, shall warm a room better than a much larger made the common way. With the manner of altering such chimneys as are already built, so that they shall perform the same effects... / Written in French, by Monsieur Gauger: Made English and improved by J.T. Desaguliers... By whom is added, the manner of making coal-fires... The whole being suited to the capacity of the meanest workman.

  • Gauger, Nicolas, approximately 1680-1730
Date:
1715
Catalogue details

Licence: Public Domain Mark

Credit: Fires improv'd: being a new method of building chimneys, so as to prevent their smoaking: in which a small fire, shall warm a room better than a much larger made the common way. With the manner of altering such chimneys as are already built, so that they shall perform the same effects... / Written in French, by Monsieur Gauger: Made English and improved by J.T. Desaguliers... By whom is added, the manner of making coal-fires... The whole being suited to the capacity of the meanest workman. Source: Wellcome Collection.

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    SOS TORRES GH A P, IV Of the Vent-Hole or Bellows, the reafon of its blowing, and the manner of its encreafing the Heat, and caufing is to be reflected. Er [ Fig.2.3-] fn the middle of the Hearth, at ~ | about 10 or 1 2 Inches diftance from the bottom Plate, muft be made a _ Trap-Door-Z that may eafily openand fhut, and under ita little hollow Paflage commu-. nicating with the outward Air; when this. Trap-Door is lifted up a little way, the Air from without will go out thro’ the Paflage X% of the Bellows or Vent-Hole ; for there will always be a greater Preflure of Air from without, than from within the Room, whe- ther the Wind: blows, or the. Weather be calm; if there bea Fire in the Hearth, be- caufe the Heat ofthe Fire rarifying the Air; and driving part of it up the Chimney with the Smoak, there will be a kind of Vacuum,, or atleaft, the Air will be made fo thin o- yer the Vent-Hole, as to prefs lefs than that: | which:
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