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PRODUCT FEATURES
Optional
Face
Plate
Fireplace
Screen
Optional T-stat Sensor
On/Off Switch
Piezo Ignitor
Figure 1 -
Unvented Gas Heater with Control Access Door Open
Your vent-free fireplace must be mounted to the floor or
the fireplace hearth.
OPERATION
This unvented gas heater requires no outside venting and
burns cleanly with high heating efficiency.
GAS PRESSURES
Control
Regulator Pressure
Pilot Regulator
Max. Inlet Pressure
Min. Inlet Pressure
Regulator Pressure
Max. Inlet Pressure
Min. Inlet Pressure
23D8036
Control
Knobs
Blower
FP2784
33ISDG product features
Millivolt
Fuel
T-stat
Natural
3.5" w.c.
Natural
3.5" w.c.
Natural
10.5" w.c.
Natural
5.0" w.c.
LP
10.0" w.c.
LP
13.0" w.c.
LP
11.0" w.c.
33ISDG Vent Free Gas Fireplace System
Gas Specifications
Model
33ISDNTG
33ISDPTG
33ISDNVG Natural
33ISDPVG
NOTE: For LP models an external regulator is required
to reduce supply pressure to a maximum of 13" w.c.
IGNITION CONTROLS
Piezo ignitor allows ignition of the pilot without the use of
matches or batteries.
Millivolt and T-Stat controls have four (4) positions:
OFF - All gas to the gas logs is shut off at the
IGN - Valve position to light/maintain a standing
ON - Valve position to turn ON/OFF log set with
FP2785
LOW/HI - Variable position to control flame height
PILOT
The gas log heater is fitted with a specially designed safety
pilot light (ODS assembly) which senses the amount of
oxygen available in the room and shuts the gas log heater
off if the oxygen level begins to drop below a satisfactory
level. The pilot can only be relit when adequate fresh air
is available.
THERMAL GENERATOR
The milli-volt gas log pilot is fitted with a milli-volt generator
to provide power for remote activation.
Fuel
Control
Natural Millivolt
28,000
LP
Millivolt
28,000
T-Stat
28,000
LP
T-Stat
28,000
valve.
pilot.
remote switch/thermostat.
(heat output). Both front and rear burners
are in operation to provide realistic glow
and yellow flame.
Input BTU/hr
Max.
Min.
19,000
23,000
19,000
23,000
5
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