6, Vent Requirements; Venting Requirements; Exhaust Restrictor - Jøtul GF 305 DV IPI Installation And Operation Instructions Manual

6. Venting Requirements

The Jøtul GF 305 DV IPI gas stove may be installed with a
vertical or horizontal termination and must conform to the
configuration requirements described below.
This appliance is approved for use with vent systems
from the following manufacturers:
• M&G DuraVent DirectVent Pro and GS Series
• American Metal Products (Amerivent)
• Security Chimneys International, Ltd. (Secure Vent)
• Selkirk Metalbestos (Direct Temp)
• Metal-Fab, Inc. (Direct Vent)
• Industrial Chimney Corp. (ExcelDirect)
• Bernard Dalsin Mfg. (Pro Form)
• Olympia Chimney Supply, Inc. (Ventis Direct Vent)
Use parts of one manufacturer only - DO NOT MIX VENT
COMPONENTS FROM DIFFERENT MANUFACTURERS IN THE
SAME SYSTEM.
Installation of any components not manufactured
or approved by Jøtul or failure to meet all clearance
requirements will void all warranties and could result in
property damage, bodily injury, or serious fire.
The approved vent configurations described in this
manual are derived from extensive testing under controlled
laboratory conditions. Gas appliance performance can be
negatively affected by variables present in the installation
environment, i.e: atmospheric pressure, strong prevailing
winds, adjacent structures and trees, snow accumulation,
etc. These conditions should be taken into consideration
by the installer and stove owner when planning the vent
system design.
IMPORTANT
• JOINT SEALING REQUIREMENT:
APPLY A 1/8" BEAD OF HIGH-
TEMPERATURE SEALANT
OR MIL-PAC® TO THE MALE
SECTION OF THE INNER VENT
PIPE. THE CEMENT SHOULD
FORM A SEAL BETWEEN THE
INNER AND OUTER PIPES.
• NEVER MODIFY ANY VENTING
COMPONENT, OR USE
ANY DAMAGED VENTING
PRODUCT.
• THE GAS APPLIANCE AND
VENT SYSTEM MUST BE
VENTED DIRECTLY TO THE
OUTSIDE OF THE BUILDING AND
NEVER ATTACHED TO A CHIMNEY
SERVING A SOLID FUEL OR GAS
BURNING APPLIANCE. EACH DIRECT VENT GAS APPLIANCE
MUST HAVE ITS OWN SEPARATE VENT SYSTEM. COMMON VENT
SYSTEMS ARE PROHIBITED.
• IF VENTING SYSTEM IS DISASSEMBLED FOR ANY REASON,
REINSTALL PER THE INSTRUCTIONS PROVIDED FOR THE INITIAL
INSTALLATION.
Figure 6.1.
DO NOT USE SILICONE
SEALANT.
RE-INSTALL THE TOP PLATE BEFORE
CONNECTING VENT TO THE STOVE.
Vent Restriction
The GF 305 DV IPI is equipped with an Exhaust Restrictor
Plate which enables regulation of the exhaust gas
flow. The plate prevents overly-strong draft that can
cause poor combustion and weak flame picture. Follow
the guidelines below and on the following pages to
determine the correct restrictor plate setting for your
particular installation.

Exhaust Restrictor

The Exhaust Restrictor plate is located within the firebox
exhaust outlet. It is adjusted by rotating the dial on
the back of the stove within a range beginning at the
factory-set, fully open position (no restriction) to a fully
restricted position. See Fig. 6.2. The Minus (-) and Plus (+)
signs on the dial relate to degrees of restriction, from
zero to approximately 70%. The three, lettered positions
correlate to the termination zones (A,B,C) diagramed in
figure 6.3. Use the diagram to determine the degree of
restriction and shutter setting that correlates to your vent
configuration.
Adjusting Exhaust Restrictor Plate:
1. Use a 1/4" nut driver to loosen the lock nut and pivot
the dial to the position appropriate to your termination
zone. See figs. 6.2-3.
2. Tighten the lock nut after adjustment.
Approved Horizontal and Vertical Vent
Terminations
• NOTE: Long vertical vent runs (over 12 ft.) in uninsulated
air space may require the stove be operated in CPI
mode for best performance.
• ALL VENTING MUST TERMINATE (END) WITHIN ONE OF
THE DESIGNATED AREAS.
• SET STOVE EXHAUST RESTRICTOR TO THE POSITION
THAT CORRESPONDS TO THE VENT TERMINATION AREA
IN THE MATRIX. When termination is exactly on a divi-
sion line, use the less restrictive position. For example,
if termination is 10 feet high and offset 7 feet, restric-
tion should be set at Position B.
• Up to two 45° elbows or one additional 90° elbow is
permitted in addition to the first elbow, however, a 5
foot reduction in horizontal length must be made for
each additional elbow whether 45° or 90°.
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