Democratic Sentinel, Volume 22, Number 50, Rensselaer, Jasper County, 24 December 1898 — The Heating Capacity of Wood. [ARTICLE]

The Heating Capacity of Wood.

A writer in the Slants Zeltung cor* tects a very common supposition in regard to the heating capacity of wood, the most notable fact in the case being that such a practical and easily demonstrable error should so long have prevailed, namely, that the heating capacity of hard wood is greater than that of soft wood. - The fact, as ascertained by repeated determinations, is that the greatest heating power is possessed by one of the softest varieties of such material. viz., the linden. Taking Its heating capacity for the unit, the second best heater is also a soft wood—fir, with 0.99 heating power; next follow the elm and the pine, with 0.98; willow, chestnut, larch, with 0.97; maple and spruce fir, with 0.96; black poplar, with 0.95; alder and white birch, with 0.94 only; then comes the hard oak. with 0.92; the locust and the white beech, with 0.91; and the red beech, with 0.90. These examples leave no doubt of the general fact that hard wobd heats the least.