The Open Fire-Places in All Ages

The Open Fire-Places in All Ages

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This historic book may have numerous typos and missing text. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1880 edition. Excerpt: ...water freeze on the floor when the temperature of the air at the ceiling was 100, and has often observed a difference of i (F.) in the temperature of the air for every foot of height in a stove-heated school-room, sixteen feet high, which was exposed on two sides to outside air at 0." 1 But if a casing is arranged around a stove, with a space left between it and the stove, open below and above, the column of air within the casing will be doubly heated by contact on one side with the stove and on the other with the casing. Being protected from the cooling influence of the surrounding air it will rise rapidly and produce a circulation in the room which will equalize its temperature. 1 Johnson.s Universal Oydopcedia. The next step was to put the stove in a chamber by itself, adjoining or below the room to be heated. The external air was admitted into this chamber, warmed, and conducted by flues about the building, and the whole formed a hot-air furnace. A large amount of fresh air is brought by the casing in contact with the heating surfaces, and it strikes them forcibly on account of the strong current produced by the hot-air flues. The fresh air is generally taken from the outside, and it is in this respect, as well as in the principle of the circulation produced by the casing, that the furnace is superior to the close stove, while in the loss of the advantage of direct radiation from the sides of the heater it stands inferior to it. The most important point to be considered in the construction of all basement furnaces alike is the acquisition of a good chimney draught, because of whatever material or in whatever manner they may be made, they cannot be rendered absolutely gas-tight. Even though the materials be non-porous and the joints more

Product details

  • Paperback | 70 pages
  • 189 x 246 x 4mm | 141g
  • Miami Fl, United States
  • English
  • black & white illustrations
  • 1236566106
  • 9781236566102