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8 10005360
LHE Series Natural Vent Insert
Installer must attach red warning plate
with screws supplied with the gas fireplace
insert to the inside of the firebox of the
fireplace into which the gas fireplace insert
is installed.
Cutting any sheet metal parts of the fire-
place, in which the gas fireplace insert is
to be installed, is prohibited.
If the factory-built fireplace has no gas
access hole(s) provided, an access hole
of 1¹⁄₂ (37.5 mm) or less may be drilled
through the lower sides or bottom of the
firebox in a proper workmanship-like man-
ner. This access hole must be plugged
with a noncombustible insulation after the
gas supply line has been installed.
Venting Installation
1. The fireplace may be installed in and vented through
any solid fuel fireplace that has a minimum fireplace
opening 25¹⁄₄"W x 17¹⁄₂" H x 13¹⁄₂"D (641 x 438 x 343
mm) for LHEC20 and LHER20 or 28³⁄₄"W x 21"H
x 15¹⁄₂"D (730 x 533 x 394 mm) for LHEC30 and
LHER30 and has been installed in accordance with
the National, Provincial/State and local building
codes and is constructed of noncombustible
materials.
2. In order to gain minimum gas insert fireplace
opening requirement, if the fire brick refractory is
removed from a factory built fireplace, a minimum
of 1/4" air space is required between the gas insert
fireplace's outer casing and the inner wall of the
factory built fireplace.
3. In order to obtain the best performance, safety and
efficiency for the gas insert fireplace, the LHEC30
and LHER30 gas insert must be installed with an
approved 4" diameter flue liner. The LHER20 and
LHEC20 should be installed with an approved 3"
diameter flue liner as per current CSA-B149.1 or
National Fuel Gas Code ANSI Z223.1/NFPA 54.
4. Any flue damper must be removed or blocked open.
5. The chimney must be clean and in good working
order and constructed of noncombustible materials.
6. Make sure that all chimney cleanouts fit properly so
air cannot leak into the chimney.
7. Install the appliance without trim frame and make all
gas fittings and electrical connections.
8. Install the decorative trim frame. Please refer to the
Frame Assembly instructions.
CAUTION: Do not wire millivolt remote
wall switch for gas fireplace to a 120v
power supply.
P
I
L
O
T
THTP
TP
TH
FP382a
REMOTE SWITCH WIRING - NVC
1/03
SIT Valve
Thermopile
FP382a
Fig. 9a On/Off switch or millivolt thermostat.
TPTH
TH
TP
FP1218
Remote switch
wiring
8/02
FP1218
Fig. 9b On/Off switch wiring.
Honeywell Valve
Fig. 8 For left side installation, reverse switch position in
bracket.
FP1331
on/off switch
4/03
FP1331
WARNING
Some factory-built fireplaces have air passages
on face of fireplace for zero clearance capabilities.
Under no circumstances should these passages
be blocked.
FP1330
Switch assy
4/03
Left Side Installation
Right Side Installation
On/Off
Switch As-
sembly
Wiring from
Millivolt Gas
Valve
Fig. 7 Insert ON/OFF switch with wiring assembly into
bracket switch.
On/Off
Switch As-
sembly
FP1330