1816.} Method of Ventilating Houses. 115 
thrown. This abstraction of the heat from the smoke is effected in 
a variety of ways, but generally by a warmer placed in the fireplace 
of each room over that in which the fire is lighted. The heating 
may be carried to any extent, and is regulated by the turning of a 
cock or valve which governs the admission of the smoke into the 
apparatus. In addition to this saving, the inventor also produces 
more heat from a given quantity of fuel, for his stove is so con- 
trived as to burn the smoke, that is, a large quantity of carbon- 
aceous matter which usually rises with it, and much inflammable 
air which usually escapes unseen. 
2. As to Ventilation.—The vitiated air rising from the lungs, or 
from candles, lamps, &c. in the room, immediately passes away 
through a circular opening in the ceiling, from which a pipe con- 
veys it to a large common tube in the staircase, and this last rises 
through the roof like a chimney, and is crowned by a ventilator. 
Through it the air from the upper part of every room in the house 
is constantly passing away, and mixing with the atmospheric ocean 
above, ensuring thus the absolute purity of what remains. 
The advantages of these plans over common methods may be 
most conveniently enunterated as follows :— 
1. With a View to Economy.—One fire answers the purpose of 
several, with a saving of fuel proportionate. There is not the 
trouble of lighting and attending to many fires, and of cleaning the 
stoves and fire-irons; so that in many houses a servant might be 
spared. In many houses fires are required to be lighted from time 
to time in every apartment to remove dampness, and this during 
summer as well as in the winter; and it is not uncommon even for 
families to submit to the inconvenience of migrating from room to 
room on this account, while the purpose is immediately answered 
in the new plan, by directing the kitchen smoke through the warm- 
ing apparatus of any particular room. The original expense is 
little more than that of setting common stoves. 
2. The danger of fires in houses is necessarily much diminished 
by it. 
"3. There never can be smoke in a house so warmed, nor the 
consequent expense of renewing so often the papering and painting 
on account of it. 
4. If elegance be studied, the new plan is susceptible of as much 
embellishment as the old. As we have been universally accustomed 
in this country to see the fire which warms us, and to account it 
company in the nights of winter ; for those who might be unwilling 
to relinquish this enjoyment in their sitting rooms at least, the in- 
ventor has planned some elegant specimens of a combination of the 
stove and warmer. ‘These possess nearly the full advantage of the 
new plan with what is very pleasing to many of the old. — 
5. Temperature or Climate.—In every part of a house so fitted 
up the impression must always be that it is summer. A delightful 
uniform warmth is felt on all sides, quite distinct from the partial 
aod unequal heat of a fire, There can be no pernicious draughts 
