The New York herald., 1922-09-04

In smoke and waste. The trick is to
burn ana not waste It.
Soft coal should be fired first on the
right side of the furnace. leaving a hot
fire exposed on the left side to consume
the volatile matter as It rises; then
when the coal on the right side is ut
red heat fire fresh coal on the left side.
Repeat this method as needed.
more careful and efficient method is
as follows:
Always leave some ash on the CRATE,
IN mild weather a great deal and in
the winter two inches
In building a new fire put lot of
fresh semi bituminous coal in the back
Of the firepot. leaving one-third of the
grate free. This open space fill with
Paper and kindling and light. having
the draft on at the ash pit the, check
draft closed and smoke pipe |lamper
open wide.
Since coal gives out its gas at a
lower temperature than it cokes II can
not be fully afre till after It cokes DO
not try to set the whole mass or coal
on fire at once. 1t wastes coal and is
unnecessary.
As the kindling burns It starts the
coal along the front face of the fresh
pile. The coal first gives up its gas,
which Is burned then il cokes and
takes fire. and while II is coking the
top of the pile begins to give off gas
and that purns. As the process con-
tinues fire eats into the whole pile grad
ually. Leave 1t while.
After some time the coal is all on
fire and the kindlings consumed With
the poker now draw the, redhot fire TO
the front part of the frepot and fill
up the back with fresh coal the same
as before.
BY leaving OH some draft at the ash
pit blue flames will start at the juno
ton point between the fresh coal and
the fire.. II these flames do not start
promptly throw in newspaper. which
will start them. IL not make more
Graft at the ash pit.
1t Is not necessary that fire should
be under the fresh coal preferably very
little fire or only ash.
When the blue flames start at the
junction point open the draft at tho fire
door half or less, shut off the draft at
the. ash pit and leave the fire. When
the fire becomes normal adjust the
check draft.
Tlh same gradual combustion takes
place and the fire can be left for four
eight or more hours. according to size
Of the firepot, thickness OF coal and
the draft.
Replenish the fre, In the same manner
hot FIRE IN front, fresh coal back.
In banking the fire for the night re-
peat the above process. but when the
Hue flames are burning over the fresh
coal put more coal on the hot FIRE In
front. close the ash pit draft. admit air
through the fire door slots and open the
check draft, but leave the damper In
the smoke pipe open, and leave It for
the night
The smoke pipe damper Is closed only
when all gas Is burned of with both
hard and soft coal TO close this
damper with fresh coal on the fre may
send the gas out the flre door or, by
conHning It. invite explosion.
Tho system VIII work I'm any nrepot
square, round, oblong. shallow or deep.
water boiler or steam boiler.
N II takes TO heat a. ten room house
ten tons OF anthracite at Si5 ton. or
$3.50, n would take less than ten tons ~
seml-hltumlnous. containing from 10 per
cent. to 90 per cent. more heat, costing
$40 ton. or 500. saving at least $50.
The extra economy duo to greater heat
IN the coal should save an additional
si5, total OF s3 per cent, or ss5.
And soft coal makes about half the
usual ash OF anthracite. No change of
CRATES Is desirable.