Vertical Termination - Jøtul GF 370 DV MV Installation And Operation Instruction Manual

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.
DO NOT USE SILICONE. SEE FIG. 6.3. SEE VENT
MANUFACTURER'S INSTRUCTIONS.
• 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
MANUFACTURER'S INSTRUCTIONS PROVIDED
FOR THE INITIAL INSTALLATION.
Vertical Venting and Termination
The Jøtul GF 370 DV MV can be vertically vented
through a roof or ceiling. Follow these guidelines


Figure 6.3.




130102- 1 GF 370 DV MV 2/22
Steep roofs, nearby trees, or predominantly windy
conditions, can promote poor draft or down draft
conditions. In such cases, an increase to the height of
the vent may improve performance.
If an offset or elbow is necessary in the vertical rise, the
vent pipe must be supported every three feet to avoid excessive
stress on the offsets. Use listed Wall Straps from any of the
approved vent suppliers.
A maximum of two 90° or four 45° elbows may be
used in a vertical termination. Whenever possible, use
45° elbows instead of 90° elbows as they offer less
restriction to the flow of flue gases and intake air.
A listed firestop is required at any floor penetration.
The opening should be framed in according to the
manufacturer's instructions.
Always maintain a minimum 1" clearance from all sides
of the vertical vent system to any combustible material.
Minimum vertical termination height: 6 ft. of vent
pipe.
Horizontal Overhang
18”. 18”.
min. min.
Termination
Cap
18” min.

IT IS NECESSARY to add restriction to a vertical vent
installation to compensate for excessive draft. See page
13; Exhaust Restriction Adjustment.

GAS VENT HEIGHT: In no case shall any discharge
opening on the cap be less than 18" (457 mm) horizon-
tally from the roof surface. See fig. 6.4.

Maximum Vent Height: 35 ft. above the appliance.
Lowest Discharge
Opening
Figure 6.4.
Minimum roof penetration height and
clearance from adjacent surfaces -

vertical termination.

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