Lengthening a pipe will increase its draught.
For those who use _anthracite_ coal, that which is broken or screened is
best for grates, and the nut-coal for small stoves. Three tons are
sufficient in the Middle States, and four tons in the Northern, to keep
one fire through the winter. That which is bright, hard, and clean is
best; and that which is soft, porous, and covered with damp dust is
poor. It will be well to provide two barrels of charcoal for kindling to
every ton of anthracite coal. Grates for _bituminous coal_ should have a
flue nearly as deep as the grate; and the bars should be round and not
close together. The better draught there is, the less coal-dust is made.
Every grate should be furnished with a poker, shovel, tongs, blower,
coal-scuttle, and holder for the blower. The latter may be made of
woolen, covered with old silk; and hung near the fire.
Coal-stoves should be carefully put up, as cracks in the pipe,
especially in sleeping rooms, are dangerous.
LIGHTS
Professor Phin, of the _Manufacturer and Builder_, has kindly given us
some late information on this important topic, which will be found
valuable.
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