11
than 8 inches of brickwork or equiv-
alent fireproofing material.
C. Where all combustible material
is cut out of the partition wall for a
sufficient distance to provide not
less than 18 inches clearance on all
sides of the connector. Any material
used to close this opening must be
non-combustible insulating material.
D. Where the section of connector
pipe passing through the wall is
replaced by a properly installed sec-
tion of factory-built chimney, the
chimney section must be listed for
solid fuel use and be insulated.
Where an existing chimney is used,
it must be large enough to provide a
draft adequate for exhausting the
gaseous products of combustion.
The cross-sectional area of the
chimney flue should be at least 25
percent greater than that of the
chimney connector (stovepipe). For
example, the common 8 inch by 8
inch chimney flue liner has an actu-
al interior cross-sectional area of
only 49 square inches (7" x 7") and,
thus, can only accommodate a 7"
stove connector.
10. Preventive
Maintenance
Instructions
10.1 Periodic and Normal
Everyday Maintenance
Blower Motor - Oil twice yearly.
Grates - Keep ash drawer emptied.
Failure to do this may cause grates
to warp.
C A U T I O N ! BEFORE CLEANING
CHIMNEY AND SMOKE PIPE BE
SURE FIRE IS OUT AND INSIDE
OF STOVE IS COOL.
Cleaning The chimney, Smoke Pipe
and Spiral Chamber.
Avoid chimney fires. On a regular
schedule, check for creosote and
soot buildup in the chimney, smoke
pipe and spiral chamber. They must
be kept clean. Keep a professional
chimney sweep in mind if you have
access to one.
Steel brushes are the safest for
cleaning metal surfaces. Salt solu-
tions and some chemicals may dam-
age metal surfaces. Do not overfire
your stove. Do not burn anything
that combusts in seconds. Excessive
flue temperatures may result there-
by igniting creosote.
To clean the chimney, obtain a stiff
brush with an extendible handle and
insert the brush into the chimney
from the top. Continue the brushing
and sweeping downward until the
e n t i re length of the chimney is
cleaned.
After cleaning the chimney, the
debris will be at the bottom of the
chimney at the clean-out opening.
Open the clean-out door and sweep
the debris out into a metal contain-
er.
The smoke pipe from the stove to
the chimney can be cleaned with a
steel brush.
Cleaning of Spiral Chamber - To
clean spiral chamber re m o v e
cleanout plate in front of chamber
by using a 3/4" wrench to turn the
bolt counter-clockwise two turn s
and slide plate sideways about 1"
and remove. Take putty knife or
similar tool and scrape accumulated
residue from the spiral chamber.
The residue will fall down to the bot-
tom of the chamber and can be
removed from the flue opening in
back of the stove by means of a vac-
uum cleaner or a small scoop.
Figure 5: Connecting
Smokepipe (connector) to
Chimney Through Wall.
Two methods of connect-
ing a chimney connector
to a chimney flue where
the connector must pass
through a combustible par-
tition wall. Instead of the
asbestos board shown,
sheet metal may be used,
or a metal lath and plaster
finish may be applied at
that area. Use 24 gauge or
heavier metal. Clearance
needed is three times the
diameter of stovepie.
Summary of Contents for SF 250
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