4
Your Sierra dealer is ALW AYS your best source of
information on local codes and requirem ents
Draft is the force which m oves air from the appliance up
through the chim ney. The am ount of draft in your chim ney
depends on the size, height and general condition of your
chim ney, local geography, nearby obstructions, and other
factors. Inadequate draft will cause the appliance to leak
sm oke into the room when starting a fire or adding fuel to
the existing fire. Excessive draft, on the other hand, m ay
cause excessive tem peratures in the appliance, burning
the wood too quickly and dam aging the unit.
Minim um Chim ney Requirem ents
Size
Height
Draft
6 x 6
15 ft
.06 W .C.
Note: 9 out of 10 tim es, dirty glass, lack of “heating”, or
failure to continue burning after the door are shut is
evidence of inadequate draft.
In all cases, if you experience anything unusual with your
Evolution, your Sierra dealer is the local expert on local
conditions, and you need to contact him or her.
CHIM NEY CO NNECTOR SYSTEM S AND CLEARANCES
FROM COM BUSTIBLE W ALLS FOR RESIDENTIAL
HEATING APPLIANCES
A. Minim um 3.5 inch thick brick m asonry all fram ed into
com bustible wall with a m inim um of 12 inch brick
separation from clay liner to com bustibles. The fireclay
liner shall run from the outer surface of brick wall to, but
not beyond, the inner surface of chim ney flue liner and
shall be firm ly cem ented in place.
B. Solid-insulated, listed factory-build chim ney length of the
sam e inside diam eter as the chim ney connector and
having 1 inch or m ore of insulation with a m inim um 9
inch air space between the outer wall of the chim ney
length and com bustibles.
C. Sheet steel chim ney connector, m inim um 24 gauge
thickness, with a ventilated thim ble, m inim um 24 gauge
in thickness, having two 1 inch air channels, separated
from com bustibles by a m inim um of 6 inch of glass fiber
insulation. Opening shall be covered, and thim ble
supported with a sheet steel support, m inim um 24
gauge in thickness.
D. Solid insulated, listed factory-build chim ney length with
an inside diam eter 2 inch larger than the chim ney
connector and having 1 inch or m ore of insulation,
serving as a pass-thru for a single wall sheet steel
chim ney connector of m inim um 24 gauge thickness,
with a m inim um 2 inch air space between the outer wall
of chim ney section and com bustibles. Minim um length
of chim ney section shall be 12 inch chim ney section
spaced 1 inch away from connector using sheet steel
support plates on both ends of chim ney section.
Opening shall be covered, and chim ney section
supported on both sides with sheet steel supports
securely fastened to wall surfaces of m inim um 24 gauge
thickness. Fasteners used to secure chim ney section
shall not penetrate chim ney flue liner