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© 2021 United States Stove Company
VENTING
NOTE: When installing in a chase, you should
insulate the chase as you would the outside walls
of your home. This is especially important in cold
climates. Minimum clearance between vent pipes
and combustible materials such as insulation is 1”.
WARNING:
ALWAYS MAINTAIN MINIMUM CLEARANCES
AROUND VENT SYSTEMS. THE MINIMUM
CLEARANCES TO COMBUSTIBLES FOR
HORIZONTAL VENT PIPE ARE 2” AT THE TOP
AND 1” AT THE SIDES AND BOTTOM OF THE
VENT SYSTEM. FOR WALL FIRESTOPS, A 1”
MINIMUM CLEARANCE ALL AROUND THE
PIPE MUST BE MAINTAINED. DO NOT PACK
THE OPEN AIR SPACES WITH INSULATION OR
OTHER MATERIALS. THIS COULD CAUSE HIGH
TEMPERATURES AND MAY PRESENT A FIRE
HAZARD.
APPROVED VENT TERMINATIONS
DuraVent
46DVA-HC
Horizontal
46DVA-H2
Horizontal
46DVA-HSCH
Horizontal
46DVA-SNK14
Horizontal
46DVA-H2-SNK14 Horizontal
46DVA-VCH
Vertical
46DVA-4C
Vertical
ICC
TM-45ST14
Horizontal
TM-4HT
Horizontal
TM-4RHT
Horizontal
TM-4SVT
Vertical
BDM
DVR-HC
Horizontal
Olympia
VDV-HC04
Horizontal
VENTING REQUIREMENTS
Consult the local and national installation codes
to assure adequate combustion and ventilation air
is available. Venting requirements apply to both
natural gas and LP gas.
• Flame height and appearance will vary depending
upon venting configuration and the type of fuel
used.
• Refer to the vent manufacturer’s installation
manual for complete installation instructions.
Vent installation must conform with venting
requirements and restrictions as outlined in this
manual.
• Provide a means for visually checking the vent
connection to the appliance after it is installed.
VENT SECTION CLEARANCES
NOTES: Wall thimble products that comply with
the required 1” (25 mm) clearance to combustibles
must be installed for all horizontal vent runs that
pass through interior or exterior walls. These wall
thimble products may be insulated using unfaced
insulation products listed as noncombustible per
ASTM E 136.
NOTES: Attic insulation shields may be insulated
using unfaced insulation products listed as
noncombustible per ASTM E 136.
Vertical Pipe Section Clearances
All Approved Venting
Sides
1”
25 mm
Horizontal Pipe Section Clearances
All Approved Venting
Top
3”
76 mm
Bottom
1”
25 mm
Sides
1”
25 mm
USE OF ELBOWS
• MAXIMUM NUMBER OF 90° ELBOWS: 4
•
For each additional 90° elbow used after the first
90° elbow, 3 ft (91.4 cm) must be subtracted from
maximum venting allowed.
• For each 45° elbow used, 1½ ft (457 mm) must be
subtracted from maximum venting allowed.
• (2) 45° degree elbows may be used in place of (1)
90° elbow.
VERTICAL VENT CAP TERMINATION
WARNING:
THIS APPLIANCE MUST NOT SHARE OR BE
CONNECTED TO A CHIMNEY FLUE SERVING
ANY OTHER APPLIANCE.
Summary of Contents for AG23
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