Quadra-Fire QVI-25FB-S User manual

Quadra-Fire • QVI-25FB-S • 2031-910 Rev. G • 6/09 1
Model:
QVI-25FB-S
• Do not store or use gasoline or other flam-
mable vapors and liquids in the vicinity of
this or any other appliance.
• What to do if you smell gas
- Do not try to light any appliance
- Do not touch any electrical switch. Do not
use any phone in your building.
- Immediately call your gas supplier from a
neighbor’s phone. Follow the gas suppli-
er’s instructions.
- If you cannot reach your gas supplier, call
the fire department.
• Installation and service must be performed
bya qualifiedinstaller,serviceagency,orthe
gas supplier.
WARNING: If the information in these
instructions is not followed exactly, a fire
or explosion may result causing property
damage, personal injury, or death.
Owner’s Manual
Installation and Operation
DO NOT DISCARD THIS MANUAL
CAUTION
This appliance may be installed as an OEM installation in
manufactured home (USA only) or mobile home and must be
installedinaccordancewiththemanufacturer’sinstructionsand
themanufactured home construction and safety standard,Title
24CFR,Part3280orStandardforInstallationinMobileHomes,
CAN/CSA Z240MH.
This appliance is only for use with the type(s) of gas indicated
on the rating plate.
• Leave this manual with
party responsible for use
and operation.
DO NOT
DISCARD
R
• Important operating
and maintenance
instructions included.
• Read,understandandfollow
these instructions for safe
installation and operation.
In the Commonwealth of Massachusetts:
• installation must be performed by a licensed plumber
or gas fitter;
• a CO detector shall be installed in the room where the
appliance is installed.
Installation and service of this appliance should be
performed by qualified personnel. Hearth & Home
Technologies suggests NFI certified or factory trained
professionals, or technicians supervised by an NFI
certified professional.
WARNING
This appliance has been supplied with an integral barrier
to prevent direct contact with the fixed glass panel. DO
NOT operate the appliance with the barrier removed.
Contact your dealer or Hearth & Home Technologies if the
barrier is not present or help is needed to properly install one.
HOT SURFACES!
Glassandothersurfacesarehotduring
operation AND cool down.
Hot glass will cause burns.
• DO NOT touch glass until it is cooled
• NEVER allow children to touch glass
• Keep children away
• CAREFULLY SUPERVISE children in same room as
fireplace.
• Alert children and adults to hazards of high temperatures.
High temperatures may ignite clothing or other flammable
materials.
• Keep clothing, furniture, draperies and other flammable
materials away.

Quadra-Fire • QVI-25FB-S • 2031-910 Rev. G • 6/09
2
Congratulations
Listing Label Information/Location
Model Name:___________________________________________ Date purchased/installed:__________________
Serial Number:__________________________________________ Location on appliance: ____________________
Dealership purchased from: _______________________________ Dealer Phone: __________________________
Notes: _______________________________________________________________________________________
_____________________________________________________________________________________________
Congratulations on selecting a Quadra-Fire gas appliance
—an elegant and clean alternative to wood burning
appliances. The Quadra-Fire gas appliance you have
selected is designed to provide the utmost in safety,
reliability, and efficiency.
As the owner of a new appliance, you’ll want to read and
carefully follow all of the instructions contained in this
Owner’s Manual. Pay special attention to all Cautions and
Warnings.
This Owner’s Manual should be retained for future
reference. We suggest that you keep it with your other
important documents and product manuals.
The information contained in this Owner’s Manual, unless
noted otherwise, applies to all models and gas control
systems.
Your new Quadra-Fire gas appliance will give you years of
durable use and trouble-free enjoyment. Welcome to the
Quadra-Fire family of appliance products!
Read this manual before installing or operating this appliance.
Please retain this owner’s manual for future reference.
We recommend that you record the following pertinent
information about your appliance.
Gas and Electric
Information
Serial Number
Type of Gas
The model information regarding your specific appliance can be found on
the rating plate usually located in the control area of the appliance.
Homeowner Reference Information
Not
Not
for
for
use
use
with
with
solid
solid
fuel.
fuel.
(
(
Ne
Ne
doit
doit
pas
pas
entre
entre
utilise
utilise
avec
avec
un
un
combustible
combustible
solide).
solide).
This
This
appliance
appliance
must
must
be
be
installed
installed
in
in
accordance
accordance
with
with
local
local
codes,
codes,
if
if
any;
any;
if
if
not,
not,
follow
follow
ANSI
ANSI
Z223.1
Z223.1
in
in
the
the
USA
USA
or
or
CAN/CGA
CAN/CGA
B149
B149
installation
installation
codes.
codes.
(Installer
(Installer
l’appareil
l’appareil
selon
selon
les
les
codes
codes
ou
ou
reglements
reglements
locaux
locaux
ou,
ou,
en
en
l’absence
l’absence
de
de
tels
tels
reglements,
reglements,
selon
selon
les
les
codes
codes
d’installation
d’installation
CAN/CGA-B149.)
CAN/CGA-B149.)
Type
Type
of
of
Gas
Gas
(Sorte
(Sorte
De
De
Gaz)
Gaz)
:
:
N
N
A
A
TURAL
TURAL
GAS
GAS
MADE
MADE
IN
IN
USA
USA
Minimum
Minimum
Permissible
Permissible
Gas
Gas
Supply
Supply
for
for
Purposes
Purposes
of
of
Input
Input
Adjustment.
Adjustment.
Approved
Approved
Minimum
Minimum
(De
(De
Gaz)
Gaz)
Acceptable
Acceptable
0.0
0.0
in
in
w.c.
w.c.
(Po.
(Po.
Col.
Col.
d’eau)
d’eau)
Maximum
Maximum
Pressure
Pressure
(Pression)
(Pression)
0.0
0.0
in
in
w.c.
w.c.
(Po.
(Po.
Col.
Col.
d’eau)
d’eau)
Maximum
Maximum
Manifold
Manifold
Pressure
Pressure
(Pression)
(Pression)
0.0
0.0
in
in
w.c.
w.c.
(Po.
(Po.
Col.
Col.
d’eau)
d’eau)
Minimum
Minimum
Manifold
Manifold
Pressure
Pressure
(Pression)
(Pression)
0.0
0.0
in
in
w.c.
w.c.
(Po.
(Po.
Col.
Col.
d’eau)
d’eau)
Model:
Model:
(Modele):
(Modele):
Serial
Serial
(Serie):
(Serie):
ANSI
ANSI
Z21XX-XXXX
Z21XX-XXXX
·
·
CSA
CSA
2.XX-MXX
2.XX-MXX
·
·
UL307B
UL307B
XXXXXXXX
XXXXXXXX
IN
IN
CANADA
CANADA
ALTITUDE:
ALTITUDE:
0-0000
0-0000
FT.
FT.
0000-0000FT.
0000-0000FT.
MAX.
MAX.
INPUT
INPUT
BTUH:
BTUH:
00,000
00,000
00,000
00,000
MIN.
MIN.
INPUT
INPUT
BTUH:
BTUH:
00,000
00,000
00,000
00,000
ORIFICE
ORIFICE
SIZE:
SIZE:
#XXXXX
#XXXXX
#XXXXX
#XXXXX
XXXXXXXX
XXXXXXXX
Total
Total
Electrical
Electrical
Requirements:
Requirements:
000Vac,
000Vac,
00Hz.,
00Hz.,
less
less
than
than
00
00
Amperes
Amperes
This product may be covered by one or more of the following patents: (Nos produits sont couverts par un ou plusieurs des brevets suivants): (United States)
4593510, 4686807, 4766876, 4793322, 4811534, 5000162, 5016609, 5076254, 5113843, 5191877, 5218953, 5263471, 5328356, 5341794, 5347983, 5429495,
5452708, 5542407, 5601073, 5613487, 5647340, 5688568, 5762062, 5775408, 5890485, 5931661, 5941237, 5947112, 5996575, 6006743, 6019099, 6048195,
6053165, 6145502, 6170481, 6237588, 6296474, 6374822, 6413079, 6439226, 6484712, 6543698, 6550687, 6601579, 6672860, 6688302B2, 6715724B2,
6729551, 6736133, 6748940, 6748942, D320652, D445174, D462436; (Canada)1297749, 2195264, 2225408; or other U.S. and foreign patents pending (ou
autres brevets americains et etrangers en attente).
RQuadra-Fire, a brand of Hearth & Home Technologies, Inc.
7571 215th Street West, Lakeville, MN 55044
Model Number
Î

Quadra-Fire • QVI-25FB-S • 2031-910 Rev. G • 6/09 3
Table of Contents
1 Listing and Code Approvals
A. Appliance Certification . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
B. BTU Specifications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
C. High Altitude Installations. . . . . . . . . . . . . . . . . . . . . . . . . . 4
D. Non-Combustible Materials Specification. . . . . . . . . . . . . . 4
E. Combustible Materials Specification . . . . . . . . . . . . . . . . . 4
F. Electrical Codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
2 Getting Started
A. Design and Installation Considerations . . . . . . . . . . . . . . . 5
B. Tools and Supplies Needed . . . . . . . . . . . . . . . . . . . . . . . . 5
C. Inspect Appliance and Components. . . . . . . . . . . . . . . . . . 5
D. Inspect Firebox. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
3 Fireplace Size Requirements
A. Minimum Fireplace Opening . . . . . . . . . . . . . . . . . . . . . . . 7
B. Clearances. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
4 Termination Locations
A. Vent Termination Minimum Clearances . . . . . . . . . . . . . . . 9
5 Vent Information and Diagrams
A. Vent Table Key . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
B. Horizontal Venting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
C. Measuring Standards. . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
6 Installation Preparation
A. Flue Damper. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11
B. Chimney. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11
C. Gas Line. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11
D. Hearth or Hearth Extension . . . . . . . . . . . . . . . . . . . . . . . .11
E. Fireplace Conversion Notice . . . . . . . . . . . . . . . . . . . . . . .11
F. Remote Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11
7 Installing Vent Pipe and Appliance
A. Venting Components . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
B. Connecting Vent Pipe. . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
C. Placing, Securing and Leveling the Appliance . . . . . . . . . 14
D. Installing Adaptor and Termination Cap . . . . . . . . . . . . . . 15
8 Gas Information
A. Fuel Conversions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
B. Gas Pressures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
C. Gas Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
9 Electrical Information
A. Wiring the Appliance. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
B. Junction Box Installation. . . . . . . . . . . . . . . . . . . . . . . . . . 19
C. Installation for Fan (Optional). . . . . . . . . . . . . . . . . . . . . . 19
10 Finishing
A. Mantel Projections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
11 Appliance Setup
A. Remove Shipping Materials . . . . . . . . . . . . . . . . . . . . . . . 22
B. Clean the Appliance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
C. Accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
D. Ember Placement. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
E. Positioning the Logs . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
F. Glass Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
G. Air Shutter Setting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
12 Operating Instructions
A. Before Lighting Appliance. . . . . . . . . . . . . . . . . . . . . . . . . 26
B. Lighting Appliance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
C. Check Pilot Flame Appearance . . . . . . . . . . . . . . . . . . . . 28
D. After Appliance is Lit. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
E. Frequently Asked Questions . . . . . . . . . . . . . . . . . . . . . . 29
13 Troubleshooting
A. Standing Pilot Ignition System . . . . . . . . . . . . . . . . . . . . . 30
14 Maintaining and Servicing Appliance
A. Maintenance Tasks. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
15 Reference Materials
A. Appliance Dimension Diagram. . . . . . . . . . . . . . . . . . . . . 34
B. Vent Kits Components . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
C. Service Parts List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
D. Limited Lifetime Warranty. . . . . . . . . . . . . . . . . . . . . . . . . 39
E. Contact Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
Î= Contains updated information.
Î
Î

Quadra-Fire • QVI-25FB-S • 2031-910 Rev. G • 6/09
4
Note: To assure top performance, safety and efficiency,
inserts must be installed with an approved flue liner as per
CAN/CGAB-149 orNational FuelGasCodeANSI Z223 and
these instructions.
Note: This installation must conform with local codes. In the
absence of local codes you must comply with the National
Fuel Gas Code, ANSI Z223.1-latest edition in the U.S.A. and
the CAN/CGA B149 Installation Codes in Canada.
1
1 Listing and Code Approvals
C. High Altitude Installations
U.L. Listed gas appliances are tested and approved with-
out requiring changes for elevations from 0 to 2000 feet
in the U.S.A. and Canada.
When installing this appliance at an elevation above
2000 feet, it may be necessary to decrease the input rat-
ing by changing the existing burner orifice to a smaller
size. Input rate should be reduced by 4% for each 1000
feet above a 2000 foot elevation in the U.S.A., or 10% for
elevations between 2000 and 4500 feet in Canada. If the
heating value of the gas has been reduced, these rules
do not apply. To identify the proper orifice size, check
with the local gas utility.
If installing this appliance at an elevation above 4500 feet
(in Canada), check with local authorities.
B. BTU Specifications
MODELS: QVI-25FB-S
LABORATORY: Underwriters Laboratories, Inc. (UL)
TYPE: Vented Gas Appliance Heaters
STANDARD: ANSI Z21.88-2002 • CSA2.33-M2003 • UL307B
Do NOT use this appliance if any part has been under water.
Immediately call a qualified service technician to inspect the
appliance and to replace any part of the control system and
any gas control which has been under water.
This product is listed to ANSI standards for “Vented Gas
Appliance Heaters” and applicable sections of “Gas Burn-
ing Heating Appliances for Manufactured Homes and
Recreational Vehicles”, and “Gas Fired Appliances for
Use at High Altitudes”.
Models
(U.S. or Canada)
Maximum
Input
BTU/h
Minimum
Input
BTU/h
Orifice
Size
(DMS)
QVI-25FB-S (NG)
US
(0-2000 FT) 29,650 21,000 #36
CANADA
(2000-4500 FT) 26,600 18,900 #37
QVI25FB-S (LP)
US
(0-2000 FT) 27,000 16,000 #52
CANADA
(2000-4500 FT) 24,300 14,400 #53
A. Appliance Certification
D. Non-Combustible Materials Specification
Material which will not ignite and burn. Such materials are
those consisting entirely of steel, iron, brick, tile, concrete,
slate, glass or plasters, or any combination thereof.
Materials that are reported as passing ASTM E 136,
Standard Test Method for Behavior of Materials in a
Vertical Tube Furnace at 750º C, shall be considered
non-combustible materials.
E. Combustible Materials Specification
Materials made of or surfaced with wood, compressed
paper, plant fibers, plastics, or other material that can ig-
nite and burn, whether flame proofed or not, or whether
plastered or unplastered shall be considered combustible
materials.
F. Electrical Codes
NOTICE: This appliance must be electrically wired and
groundedin accordancewith localcodes or,in theabsence
of local codes, with National Electric Code ANSI/NFPA
70-latest edition or the Canadian Electric Code CSA
C22.1.
• A 110-120 VAC circuit for this product must be protected
withground-faultcircuit-interrupterprotection,incompliance
with the applicable electrical codes, when it is installed in
locations such as in bathrooms or near sinks.
WARNING
NOT INTENDED FOR USEASA PRIMARY HEAT SOURCE.
This appliance is tested and approved as either supplemen-
tal room heat or as a decorative appliance. It should not be
factored as primary heat in residential heating calculations.

Quadra-Fire • QVI-25FB-S • 2031-910 Rev. G • 6/09 5
Quadra-Firegas insertsare designedforrecessedinstalla-
tionsinto solidfuelmasonry orfactorybuiltnon-combustible
fireplaces that have been installed in accordance with the
National, Provincial, State and local building codes.
Prior to installing the gas insert:
• Have the chimney and adjacent structure inspected
and cleaned by qualified professionals. Hearth & Home
Technologies recommends that NFI or CSIA certified
professionals,or techniciansunderthe directionof certi-
fied professionals, conduct a minimum of a NFPA 211
Level 2 inspection of the chimney.
• Replace component parts of the chimney and fireplace
as specified by the professionals.
• Ensure all joints are properly engaged and the chimney
is properly secured.
When planning an appliance installation, it’s necessary to
determine the following information before installing:
• Minimum fireplace size. See Section 3.A.
• Gas supply piping.
• Electrical wiring.
• Finishing details.
• Existing mantel projections. See Section 10.
• Whether optional accessories—devices such as a fan,
wall switch, or remote control—are desired.
B. Tools and Supplies Needed
Before beginning the installation be sure that the following
tools and building supplies are available.
Pliers Hi temp caulking material
Hammer Flat blade screwdriver
Voltmeter Framing square
Gloves Variable speed drill
1/4 Hex drive Safety glasses
Manometer Phillips screwdriver
Tape measure Non-corrosive leak check solution
1/2 - 3/4 inch length, #6 or #8 Self-drilling screws
Check building codes prior to installation.
• Installation MUST comply with local, regional, state and
national codes and regulations.
• Consult insurance carrier, local building, fire officials or
authoritieshavingjurisdictionaboutrestrictions,installation
inspection, and permits.
A. Design and Installation Considerations
Quadra-Fire direct vent gas appliances are designed to
operate with all combustion air siphoned from outside of
the building and all exhaust gases expelled to the outside.
No additional outside air source is required.
2
2 Getting Started
C. Inspect Appliance and Components
• Carefully remove the appliance and components from
the packaging.
• The vent system components, surrounds and fronts are
shipped in separate packages.
• The fiber logs may be packaged separately and must
be field installed.
• Report to your dealer any parts damaged in shipment,
particularly the condition of the glass.
• Read all of the instructions before starting the insta-
llation. Follow these instructions carefully during the
installation to ensure maximum safety and benefit.
CAUTION
Keep appliance dry.
• Mold or rust may cause odors.
• Water may damage controls.
Inspectapplianceandcomponentsfordamage.
Damaged parts may impair safe operation.
• Do NOT install damaged components.
• Do NOT install incomplete components.
• Do NOT install substitute components.
Report damaged parts to dealer.
Hearth & Home Technologies disclaims any
responsibilityfor, and the warranty will be voided
by, the following actions:
• Installation and use of any damaged appliance or vent
system component.
• Modification of the appliance or vent system.
• Installation other than as instructed by Hearth & Home
Technologies.
• Improper positioning of the gas logs or the glass door.
• Installationand/oruseof any component part notapproved
by Hearth & Home Technologies.
Any such action may cause a fire hazard.
WARNING
WARNING
WARNING

Quadra-Fire • QVI-25FB-S • 2031-910 Rev. G • 6/09
6
D. Inspect Firebox
Surface cracking or crazing of firebrick material is normal
andexpected. Thefollowingtypesof cracksareacceptable
and do not require replacement of the unit or the firebox:
• Cracks that do not propagate entirely through the
material.
• Lightfracturelines or “spider-webbing”on the surfaceof
the material.
• Cracks that are less than 1/32 in. wide and less than 3
in. long.
• If cosmetically unacceptable, such cracks may be
repaired with the SRV-PACK service kit. See Service
Parts List.
Cracks that are unacceptable:
• Cracks greater than 1/32 in. wide and 3 in. long are at
risk of growing.
• Cracks that penetrate entirely through the firebrick
material.
Inspection for cracking should be run when the appliance
is cool. Cracks tend to close as the appliance heats up.

Quadra-Fire • QVI-25FB-S • 2031-910 Rev. G • 6/09 7
3
3 Fireplace Size Requirements
Figure 3.1 Fireplace Opening
NOTE: For actual appliance dimensions refer to Section 15.
20-3/8 in.
14-7/16 in.
29-3/4 in.
15 in.
5-9/16 in.
1-1/16 in.
18-15/16 in.
GAS INLET
(GAS BALL VALVE NOT SHOWN)
EXISTING MINIMUM WOODBURNING FIREPLACE SIZE
Location Inches Millimeters
A Front Width 30-7/8 784
B Rear Width 25-5/8 651
C Depth 15 381
D Height 19-1/2 495
* NOTE: If exhaust collar on insert and fireplace damper do not line up, add 4 inches (102 mm) to minimum
fireplace height for bends in vent pipe.
A. Minimum Fireplace Opening
Minimum fireplace opening requirements are shown in
Figure 5.1.
WARNING! Risk of Fire or Burns! Provide adequate
clearance around air openings and for service access.
Due to high temperatures, the appliance should be locat-
ed out of traffic and away from furniture and draperies.
• Thefirebrick(refractory),glassdoors,screenrails,screen
mesh and log grates can be removed from a factory
built firebox in order to gain minimum gas insert opening
requirements.
• Anysmoke shelves,shields andbafflesmaybe removed
from the factory built firebox if attached with mechanical
fasteners.
• Themetalfloorofthe solidfuelfireboxmay beremovedto
facilitatethe installationofthe insert. Theappliance may
notbe placeddirectly onthe baseof theouter wrap,a1/4
inch airspace must be provided between the insert and
thefloor oftheouter wrap. Usethe levellinglegsto raise
the insert a minimum of 1/4 inch. The original fireplace
may never be returned to solid fuel in this condition.
The sidewalls and top structure of the firebox may not
be altered with the exception of removable baffles and
dampers.
• Cutting of any sheet metal parts of the fireplace in which
the gas fireplace insert is to be installed is prohibited,
except the floor as tested for and as noted above.

Quadra-Fire • QVI-25FB-S • 2031-910 Rev. G • 6/09
8
B. Clearances
Figure 3.2 Clearances to Mantels or other Combustibles
above Appliance
Fire Risk.
• Locate and install appliance to all clearance
specifications in manual.
Fire Risk.
Odor Risk.
• Clearancetocombustiblematerial under the
insert is 1/4 inch (0.6 cm).
• Use leveling legs to raise insert minimum
1/4inchabove combustible material or outer
wrap of factory built firebox.
TOP OF UNIT
MANTEL 12 in.
MAX.
12 in. MAX.
WARNING
WARNING

Quadra-Fire • QVI-25FB-S • 2031-910 Rev. G • 6/09 9
Fire Risk.
Asphyxiation Risk.
• Terminations MUST meet minimum clearances.
• Exhaust gases are hot.
• Nearby vents may draw fumes into house.
A. Vent Termination Minimum Clearances
Figure 4.1 specifies minimum vent heights for various
pitched roofs.
Roof Pitch H (Min.) Ft.
Flat to 6/12...........................................................1.0*
Over 6/12 to 7/12.................................................1.25*
Over 7/12 to 8/12.................................................1.5*
Over 8/12 to 9/12.................................................2.0*
Over 9/12 to 10/12...............................................2.5*
Over 10/12 to 11/12.............................................3.25
Over 11/12 to 12/12.............................................4.0
Over 12/12 to 14/12.............................................5.0
Over 14/12 to 16/12.............................................6.0
Over 16/12 to 18/12.............................................7.0
Over 18/12 to 20/12.............................................7.5
Over 20/12 to 21/12.............................................8.0
Figure 4.1 Minimum height from roof to lowest discharge
opening
4
4 Termination Locations
* 3 foot minimum in snow regions
WARNING
HORIZONTAL
OVERHANG
VERTICAL
WALL
GAS DIRECT VENT
TERMINATION CAP
12
X
ROOF PITCH
IS X/ 12
LOWEST
DISCHARGE
OPENING
2 FT.
MIN.
20 INCHES MIN.
H (MIN.) - MINIMUM HEIGHT FROM ROOF
TO LOWEST DISCHARGE OPENING

Quadra-Fire • QVI-25FB-S • 2031-910 Rev. G • 6/09
10
CAUTION
ALL vent specifications MUST be followed.
• This product is tested and listed to these specifications.
• Appliance performance will suffer if specifications are not
followed.
Figure 5.1
C. Measuring Standards
Vertical measurements listed in the vent diagram (Figure
5.1) were made using the following standard:
• Vertical terminations are measured to top of chimney.
Fire Hazard.
Explosion Risk.
Asphyxiation Risk.
Do NOT connect this gas appliance to a
chimney flue serving a separate solid fuel or
gas burning appliance.
• May impair safe operation of this appliance
or other appliances connected to the flue.
• Vent this appliance directly outside.
• Use separate vent system for this appliance.
B. Horizontal Venting
Horizontal venting is NOT allowed.
5
5 Vent Information and Diagrams
A. Vent Table Key
The abbreviations listed in this vent table key are used in
the vent diagrams.
Symbol Description
VMIN Minimum Vertical Run Length 14 ft.
VMAX Maximum Vertical Run Length 50 ft.
WARNING
TERMINATION
CAP
EXHAUST
VENT PIPE
V= 14 FT. MINIMUM
50FT. MAXIMUM
3 INCH COLLAR
(Factory installed to
stainless steel section)
WARNING: DO NOT
BLOCK PIPE END WITH
INSULATION OR ANY OTHER
SEALING MATERIAL
STAINLESS STEEL
PIPE - 3 FT. MIN.
REQUIRED (INCLUDED)
INLET AIR
VENT PIPE
COLLAR ATTACHMENT
BRACKET
EXHAUST COLLAR
INLET AIR COLLAR
SEAL DAMPER
AREA
FLASHING