Lennox Hearth II-T C FS Stove User Manual


 
INSTALLATION
INSTALLING ADVANTAGE II-T C INS (CONTINUED)
PAGE 20
Full Chimney Reline
Recommended for All
Chimney Installations
Horizontal Vent Through Masonry Chimney Structure
.
USA & Canada – Requires an approved noncom-
bustible hearth or floor protector, 3/8” / (10 mm)
millboard or equivalent (k = .84, r = 1.19) to ex-
tend 6” / 150 m19-20m to the front of the glass
door.
Do not block opening at front of insert (below
door).
Seal Chimney top with steel
plate and/or pipe support
Listed Rain Cap
A
pproved Liner for Factor
y
Built (ZC) Fireplaces and
Masonry Fireplaces is
2100HT (degree F.) line
r
listed to UL 1777 or ULC
S635. The liner must be se-
curely attached to the insert
flue collar and the chimne
y
top.
18” Min.
(457 mm)
to Mantel
1” Min.
(25 mm)
to Trim
6” Min. Floor
Protection
Optional Posi-
tive Flue
Connection
Clean
Out Tee
USA – The insert ma
y
be installed as a Hori-
zontal Vent (through
chimney structure) in
Masonry Fireplaces i
f
local code permits.
IN CANADA – Installing as a Horizon-
tal Vent is NOT allowed. The fireplace
chimney must be fully lined.
18” Min.
(457 mm)
to Mantel
6” Min. Floor
Protection
1” Min.
(25 mm)
to Trim
Mantel
Mantel
IMPORTANT NOTES:
A
flexible corrugated chimne
y
liner has much greater resis-
tance to the flow of flue gases
than does a rigid liner. For this
reason we recommend that a
larger, 4” liner be used on ver-
tical runs exceeding 15 feet o
r
that rigid venting be used as
illustrated on this page (see
Full Chimney Reline).
If a flexible corrugated chimney
liner is used, it must be fully
extended to eliminate any sag-
ging and to improve the ex-
haust flow.
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