Vermont Castings DVR33 Mounting instructions

1
Vermont Castings, Majestic Products: DVR33
10004920
Homeowner's Installation and
Operating Manual
INSTALLER: DO NOT DISCARD THIS MANUAL - LEAVE FOR HOMEOWNER
Rear Vented
Direct Vent Gas Fireplace
Model:
DO NOT STORE
OR USE GASOLINE OR
OTHER FLAMMABLE 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 electric
switch; do not use any phone in
your building.
•Immediately call your gas
supplier from your neighbor's
phone. Follow the gas suppliers
instructions.
•If you cannot reach your gas
supplier call the fire
department.
WARNING!
IF THE INFORMATION IN THIS
MANUAL IS NOT FOLLOWED
EXACTLY, A FIRE OR EXPLO-
SION MAY RESULT CAUSING
PROPERTY DAMAGE, PER-
SONAL INJURY OR LOSS OF
LIFE.
PLEASE READ THIS MANUAL
BEFORE INSTALLING AND
USING APPLIANCE
INSTALLER/CONSUMER
SAFETY INFORMATION
10004920 01/03 Rev.0
FOR YOUR SAFETY
Installation and service must
be performed by a qualified
installer, service agency or
the gas supplier.
410 Admiral Blvd. • Mississauga, Ontario, Canada L5T 2N6 • 905-670-7777
www.majesticproducts.com • www.vermontcastings.com
Vermont Castings, Majestic Products
DVR33
2823

2
Vermont Castings, Majestic Products: DVR33
10004920
Table of Contents
Thank You and Congratulations on Your Purchase of a Vermont Castings, Majestic Products Fireplace.
IMPORTANT: Read all instructions and warnings carefully before starting installation. Failure to follow these
instructions may result in a possible fire hazard and will void the warranty.
PLEASE READ THE INSTALLATION & OPERATING INSTRUCTIONS BEFORE USING THE APPLIANCE.
Installation and Operating Instructions
Important Curing/Burning Instructions ........................................................................ 3
Proposition 65 Warning ............................................................................................... 3
Locating Your fireplace................................................................................................ 3
Fireplace Dimensions.................................................................................................. 4
Clearance to Combustibles ......................................................................................... 5
Mantels........................................................................................................................ 5
Hearth ........................................................................................................................ 5
Framing & Finishing .................................................................................................... 6
Final Finishing ............................................................................................................. 6
Gas Specifications....................................................................................................... 6
Gas Inlet and Manifold Pressures ............................................................................... 6
Gas Line Installation.................................................................................................... 7
Remote ON/OFF Switch Installation ........................................................................... 7
Alternate Switch Location............................................................................................ 7
EB-1 Electrical Box...................................................................................................... 8
Electronic Gas Control Valve ...................................................................................... 9
General Venting Information/Termination Location/ Clearances ............................. 9 – 11
General Information for Connecting Vent Pipes ............................................................... 11
Crimped End Pipes/Twist Lock Pipes ................................................................. 11, 12
Rear Wall Vent Application/ Installation .............................................................. 12, 13
How to Use the Vent Graph ...................................................................................... 14
Vertical Sidewall Application/ Installation .......................................................... 14 – 17
Below Grade Installation ..................................................................................... 17, 18
Vertical Through-the-Roof Applications & Installations ....................................... 18, 19
DVR33 Bracket Restricter Installation ....................................................................... 20
Twist Lock/ Crimped End Venting Components.................................................. 21, 22
Operating Instructions
Glass Information ...................................................................................................... 23
Louvre Removal ........................................................................................................ 23
Window Frame Assembly Removal .......................................................................... 23
Glass Cleaning .......................................................................................................... 23
Installation of Logs and Lava Rock Material.............................................................. 24
Flame and Temperature Adjustment......................................................................... 24
Flame Characteristics................................................................................................ 25
Inspecting the Venting System.................................................................................. 25
Lighting and Operating Instructions..................................................................... 26, 27
Troubleshooting Guides .................................................................................... 28 – 30
Fuel Conversion Instructions..................................................................................... 31
General Maintenance ................................................................................................ 32
Cleaning the Standing Pilot Control System ............................................................. 32
Replacement Parts
Parts Pictorial ...................................................................................................... 33, 34
Parts Number List............................................................................................. 34 – 36
Optional Accessories
Fan Kits ..................................................................................................................... 37
Hard Wire (Direct) Hook-up....................................................................................... 37
Remote Controls ....................................................................................................... 38
Ceramic Refractory Panels ....................................................................................... 38
Decorative Bay Windows .......................................................................................... 38
Decorative Frame Trims............................................................................................ 39

3
Vermont Castings, Majestic Products: DVR33
10004920
This gas appliance should be installed by a qualified installer
in accordance with local building codes and with current CSA-
B149.1 Installation codes for Gas Burning Appliances and
Equipment. If the unit is being installed in a mobile home, the
installation should comply with the current CAN/CSA Z 240.4
code. For U.S.A. Installations follow local codes and/or the
current National Fuel Gas Code. ANSI Z223.1.
FOR SAFE INSTALLATION AND OPERATION
PLEASE NOTE THE FOLLOWING:
1. This fireplace gives off high temperatures and
should be located out of high traffic areas and away
from furniture and draperies.
2. Children and adults should be alerted to the hazards
of the high surface temperatures of this fireplace,
and should stay away to avoid burns or ignition of
clothing.
3. Children should be carefully supervised when in the
same room as your fireplace.
4. Under no circumstances should this fireplace be
modified. Parts removed for servicing should be
replaced prior to operating this fireplace again.
5. Installation and any repairs to this fireplace must be
performed by a qualified installer, service agency or
gas supplier. A professional service person should
be contacted to inspect this fireplace annually. Make
it a practice to have all of your gas fireplaces
checked annually. More frequent cleaning may be
required due to excess lint and dust from carpeting,
bedding material, etc.
6. Control compartments, burners and air passages in
this fireplace should be kept clean and free of dust
and lint. Make sure the gas valve and pilot light are
turned off before you attempt to clean this fireplace.
7. The venting system (chimney) of this fireplace
should be checked at least once a year and if
needed your venting system should be cleaned.
8. Keep the area around your fireplace clear of com-
bustible materials, gasoline and other flammable
vapor and liquids. This fireplace should not be used
as a drying rack for clothing, nor should Christmas
stocking or decorations be hung in the area of it.
9. Under no circumstances should any solid fuels
(wood, coal, paper or cardboard etc.) be used in this
fireplace.
10. The flow of combustion and ventilation air must not
be obstructed in any way.
11. When fireplace is installed directly on carpeting, vinyl
tile or any combustible material other than wood, this
fireplace must be installed on a metal or wood panel
extending the full width and depth of the fireplace.
12. This fireplace requires adequate ventilation and
combustion air to operate properly.
13. This fireplace must not be connected to a chimney
flue serving a separate solid fuel burning fireplace.
14. When the fireplace is not in use it is recommended
that the gas valve be left in the OFF position.
Installation and Operating Instructions
Notes (Fig. 1):
*
When you install your Vermont Castings, Majestic Products fireplace in
(D) Room divider or (E) Flat on wall corner positions, a minimum of (Y),
6 in. (153 mm) clearance must be maintained from the perpendicular
wall and the front side edge of the fireplace.
**
Island (C) and Room Divider (D) installation is possible if the horizontal
portion of the vent system (X) does not exceed 20 ft. (610 cm). See
details in Venting Section.
IMPORTANT: PLEASE READ THE FOLLOWING CAREFULLY
Remove any plastic from trim parts before turning the
fireplace On.
It is normal for fireplaces fabricated of steel to give off some
expansion and/ or contraction noises during the start up or
cool down cycle. Similar noises are found with your furnace
heat exchanger or car engine.
It is not unusual for a Vermont Castings, Majestic Products
gas fireplace to give off some odor the first time it is burned.
This is due to the manufacturing process.
Please open all windows to ensure your room
is well ventilated.
It is recommended that you burn your fireplace for at least
ten (10) hours the first time you use it. If the optional fan kit
has been installed, place the fan switch in the “Off” position
during this time.
Locating Your Fireplace
Fig. 1 Locating Your Gas Fireplace
A) Flat on wall B) Cross corner C) Island
**
D) Room divider
*
/
**
E) Flat on wall corner * F) Chase installation
Y) 6 in. minimum
PROPOSITION 65 WARNING
Fuels used in gas, wood-burning or oil fired appliances,
and the products of combustion of such fuels, contain
chemicals known to the State of California to cause
cancer, birth defects and other reproductive harm.
California Health & Safety Code Sec. 25249.6
LU584-R
YEAB
C
D
F
YB
X
X
This appliance may be installed in an aftermarket,
permanently located, manufactured home, or
mobile home where not prohibited by local codes.
This appliance is only for use with type of gas
indicated on the rating plate. This appliance is
not convertible for use with other gases,
unless a certified kit is used.

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Vermont Castings, Majestic Products: DVR33
10004920
Appliance Dimensions
Fireplace Dimensions
A 33” 838 mm
B28
7
/ 8 ” 733 mm
C16
3
/ 8 ” 416 mm
D 31” 787 mm
E22
1
/ 16 ” 560 mm
F11
1
/ 2 ” 292 mm
G14
3
/ 4 ” 375 mm
H24
1
/ 2 ” 622 mm
I 5” 127 mm
J7
1
/ 2 ” 127 mm
K8
1
/ 2 ” 216 mm
R 31” 787 mm
S16
1
/ 2 ” 419 mm
T19
1
/ 2 ” 495 mm
U 8” 208 mm
L 36” 914 mm
M 51” 1295 mm
N25
1
/ 2 ” 648 mm
O 12” 305 mm
P 29” 737 mm
Q33
1
/ 2 ” 851 mm
Framing Dimensions
-
Fig. 2 Fireplace specifications and framing dimensions.
⁵⁄₈ "
C
L
Rough Opening Width 33¹⁄₂"
7" Dia.
4" Dia.
Rough
Opening
Height
Electrical
Access
Rough
Opening
Depth
Recessed
Nailing Flange
Gas Line
Access
(178mm)
(102mm)
(16mm)
L
L
M
R
P
B
A
E
C
F
G
T
IJ
D
H
N
B
S
O
K
U
¹⁄₂"
(13mm)
1"
(25mm)
2"
(52mm)
2" (52mm)
(102mm)
4"
Q
1" (25mm)

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Vermont Castings, Majestic Products: DVR33
10004920
Mantels
The height that a combustible mantel is fitted above
the fireplace is dependent on the depth of the mantel.
This also applies to the distance between the mantel
leg (if so fitted) and the fireplace. Refer to Fig. 4a and
Fig. 4b, and the Mantel Charts below for the correct
mounting height and widths.
The distances and reference points are not affected by
the fitting of a bay window front trim kit.
Noncombustible mantels and legs may be installed at
any height and width around the appliance.
To prevent discoloration, use only heat-resistant paint
or lacquer to finish the mantel.
Clearance to Combustibles
Appliance
Top 0” (0 mm)
Bottom 0” (0 mm)
Side 0” (0 mm)
Back 0” (0 mm)
Venting
Concentric sections of DV Vent 1” (25 mm)
Non-concentric sections of DV Vent
Sides and bottom 1” (25 mm)
Top 2” (50 mm)
A hearth is not mandatory, but is recommended for
aesthetic purposes. We recommend using a
noncombustible hearth which projects out 12”
(305 mm) or more from the front of the fireplace.
Cold climate installation recommendation:
When installing this unit against a
noninsulated exterior wall or chase,
it is mandatory that the outer walls be
insulated to conform to applicable
insulation codes.
Hearth
ABCDE
V
W
X
Y
Z
Fireplace
Top Louvre Assembly
Top of Combustion Chamber
Bottom of Door Trim
CFM146
Fig. 4a Combustible mantel leg minimum installation
Mantel Height above
Ref. Shelf Depth Ref. Firebox
V 10" (254 mm) A 17" (432 mm)
W 8" (203 mm) B 15" (381 mm)
X 6" (152 mm) C 13" (330 mm)
Y 4" (101 mm) D 11" (279 mm)
Z 2" ( 50 mm ) E 9" (229 mm)
Mantel Shelf Dimensions (Minimum Height)
Mantel Mantel Leg from Side of
Ref.
Leg Depth Ref. Combustion Opening
F 10" (254 mm) K 11
1
/ 2 " (292 mm)
G 8" (203 mm)
L 9
1
/ 2 " (241 mm)
H 6" (152 mm)
M 7
1
/ 2 " (191 mm)
I
4" (101 mm) N 5
1
/ 2 " (140 mm)
J
2" ( 50 mm ) O 3
1
/ 2 " ( 89 mm )
Mantel Leg Dimensions (MinimumWidth)
CFM164b
Fig. 4b Mantel leg dimensions
CFM174
CFM166a
J
F
G
H
I
Mantel Leg
O
NM
L
K
Mantel
Leg
Side of Combustion Chamber
Black Surround Face

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Vermont Castings, Majestic Products: DVR33
10004920
Fig. 5 Adjustable drywall strip (nailing flanges).
C
A
B
Adjustable Drywall Strip
(Nailing Flange)
Screw Drywall
Position Depths
A 1/2” (13 mm)
B 5/8” (16 mm)
C 3/4” (19 mm)
FP1023
Adjustable
1/2”, 5/8” &
3/4” Spacing
Noncombustible materials such as brick or tile may be
extended over the edges of the face of the appliance.
DO NOT cover the window frame assembly, any
vent, louvre assembly top or louvre assembly
bottom.
If a Trim Kit is going to be installed on the fireplace, the
brick or tile will have to be installed flush with the edges
of the appliance.
Final Finishing
High Elevations
Input ratings are shown in BTU per hour and are
certified without deration for elevations up to
4,500 feet (1,370 m) above sea level.
For elevations above 4,500 feet (1,370 m) in USA,
installations must be in accordance with the
current ANSI Z223.1 and/or local codes having
jurisdiction.
In Canada, please consult provincial and/or local
authorities having jurisdiction for installations at
elevations above 4,500 feet (1,370 m).
Inlet Minimum 5.5” w.c. 11” w.c.
Inlet Maximum 14” w.c. 14” w.c.
Manifold Pressure 3.5” w.c. 10” w.c.
Gas Inlet and Manifold Pressures
Natural LP (Propane)
DVR33
CERTIFIED TO
ANSI Z21.88-2002 / CSA 2.33-2002
Vented Gas Fireplace Heaters
Gas Specifications
Max. Min.
Input Input
Model Fuel Gas Control BTU/h BTU/h
DVR33RN Nat Millivolt 20,000 14,000
DVR33RP Prop Millivolt 20,000 15,000
DVR33EN Nat 24 V Hi/Lo 20,000 14,000
DVR33EP Prop 24 V Hi/Lo 20,000 15,000
1. Choose the unit location.
2. Place the unit into position and secure it to the floor
with 1.5” (38 mm) screws, or nails. The holes to
secure the unit to floor are located just behind the
access door grille on the left and right side of the
unit.
3. Frame in the fireplace with a header across the top.
It is important to allow for the finished wall face
when setting the depth of the frame.
4. Attach the fireplace to the frame using the adjustable
frame drywall strips (located behind the access
door for shipping). Preset the depth to suit the
facing material of the wall. The strips are adjustable
to 1/2” (13 mm), 5/8” (16 mm), or 3/4” (19 mm).
(Fig. 5)
5. Screw through the slotted holes in the drywall strip
and into predrilled holes in fireplace side. Measure
from face of fireplace to the face of the drywall strip to
confirm the final depth.
Check fireplace to make sure it is
levelled and properly positioned.
Framing and Finishing

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Vermont Castings, Majestic Products: DVR33
10004920
The gas pipeline can be brought in through the side of
the fireplace as well as the bottom. Knockouts are
provided on the bottom behind the valve to allow for the
gas pipe installation and testing of any gas connection.
It is most convenient to bring the gas line in from the
rear right side of the valve as this allows fan installation
or removal without disconnecting the gas line.
The gas line connection can be made with properly
tinned 3/8” copper tubing, 3/8” rigid pipe or an ap-
proved flex connector. Since some municipalities have
additional local codes, it is always best to consult your
local authority and the CSA-B149.1 installation codes.
For USA installations consult the current National Fuel
Gas Code, ANSI Z223.1.
Gas Line Installation
When purging the gas lines, the front
glass must be removed.
1/2" GAS SUPPLY
1/2" NPTx 1/2" FLARE SHUT-OFF VALVE
3/8" FLEX LINE
(FROM VALVE)
FP297a
Fig. 6 Typical gas supply installation.
Always check for gas leaks with a mild
soap and water solution applied with a
brush no larger than 1” (25 mm). Never
apply soap and water solution with a
spray bottle. Do not use an open flame
for leak testing.
Do not subject the fireplace valve to test
pressures exceeding 1/2 p.s.i. Isolate, or
disconnect this and any other gas
appliance control from the gas line when
pressure testing.
1. Thread the wiring through the electrical knockout
located on either side of the unit. Take care not to
cut the wire or insulation on metal edges. Ensure the
wire is secured and protected from possible dam-
age. Run one end of the gas control valve and the
other end to the conveniently located wall switch.
2. Attach the wire to the ON/OFF switch and install the
switch into the receptacle box. Attach the cover plate
to the switch.
3. Connect the wire to the gas control valve (Fig. 7).
Remote ON/OFF Switch Installation
Do not wire the remote ON/OFF wall
switch for this gas appliance into a 120 V
power supply.
TPTH TH
TP
Remote
ON/OFF
Switch
W584-9
Fig. 7 Remote switch wiring diagram for RN or RP models.
Alternate Switch Location
The remote switch can be installed on either side of the
access door. Mount the switch to the bracket provided
and screw the bracket to either side of the frame, using
the prepunched holes (Fig. 8).
CFM104
Fig. 8 Alternate switch location.
The gas control is equipped with a captured screw type
pressure test point; therefore, it is not necessary to
provide a 1/8" test point up stream of the control.
When using copper or flex connector use only ap-
proved fittings. Always provide a union when using
black iron pipe so that the gas line can be easily
disconnected for burner or fan servicing (Fig. 6). See
the gas specification for pressure details and ratings.

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Vermont Castings, Majestic Products: DVR33
10004920
FP580
Fig. 9 EB-1 receptacle.
5. Connect black wire of the power supply line to the
brass screw (polarized) of the socket assembly.
6. Connect the white wire of the power line to the
chrome screw of the socket assembly.
7. Connect the ground wire of the supply line to the
green screw of the socket assembly.
8. Refit the socket assembly back into the electrical
box and replace the cover plate. Secure the cable
with the clamp on the outside of the unit to prevent
strain on the connections.
9. The EB-1 electrical junction box is now ready to
supply power to the FK-12 or FK-24 fan kits, if so
fitted.
Outside
Electrical Box
Front of Unit
Inside
Front of Unit
Retaining Screw
The fireplace, when installed, must be
electrically connected and grounded in
accordance with local codes or, in the
absence of local codes, with the current
CSA C22.1 Canadian Electrical Code
For USA installations, follow the local
codes and the national electrical code
ANSI/NFPA No. 70.
It is strongly suggested that EB-1
Electrical Junction Box wiring be carried
out by a licensed electrician.
Ensure that the power to the supply line
has been disconnected before
commencing this procedure.
The EB-1 electrical junction box has been supplied
standard with this model to allow for easy installation of
an optional fan kit.
To connect the EB-1 box to the house electrical supply
follow the steps below.
1. Unscrew the retaining screw from the EB-1 base
plate (Fig. 9), and remove the EB-1 assembly from
the fireplace.
2. Remove the front cover of the EB-1 box.
3 Remove the plug socket assembly from the EB-1 box.
4. Feed the supply line in from the outside through the
cable clamp (Fig. 9).
EB-1 Electrical Box

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Vermont Castings, Majestic Products: DVR33
10004920
Fig. 10 Honeywell Ignition Module.
This appliance may be fitted with a Honeywell
Ignition Module.
To install the remote On/Off starter switch on
electronic ignition units (Fig. 10):
1. Thread the wiring through the holes on the side
panels of the appliance. Take care not to cut the
wire or insulation on metal edges. Route the wire
to a conveniently located receptacle box.
2. Attach the wire to the On/Off switch and install
the switch into the receptacle box.
3. Connect the White wire from the wall switch to the
Black wire from the transformer, using an approved
wire nut. Connect the Black wire from the wall
switch to the Black wire running from the #6
position of the ignition module, also using an
approved wire nut.
Electronic Gas Control Valve
PILOT
HONEYWELL IGNITION MODULE
BLUE
BLACK
WHITE
NOVA SIT 822VALVE
HI
LO
POWER CORD
W/FEMALE SPADE
120VAC RTN
WHITE
GREEN
BLACK
120VAC HOT
BLACK
YELLOW
24VAC RET
40VATRANSFORMER
24VAC HOT
BLACK WHITE
WALL SWITCH
WHITE
OFF
1 2 3 4 5 6 8 9
MV MV/VP PV GRD 24V SENSE SPARK
24V
ORANGE
RED
GREEN
ORANGE
General Venting Information
Your fireplace is approved to be vented either through
the side wall, or vertically through the roof.
•Only venting components specifically approved
and labeled for this fireplace may be used.
•Venting terminals shall not be recessed into a wall or
siding.
•Horizontal venting must be installed on a level plane
without any incline or decline.
There must not be any obstruction such as bushes,
garden sheds, fences, decks or utility buildings within
24" from the front of the termination hood.
Do not locate termination hood where excessive snow
or ice build up may occur. Be sure to check vent
termination area after snow falls, and clear to prevent
accidental blockage of venting system. When using
snow blowers, make sure snow is not directed towards
vent termination area.
Location of Vent Termination
It is imperative to observe minimum
clearances (shown on the following
page) when locating vent terminations.
10004083-Fig1

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Vermont Castings, Majestic Products: DVR33
10004920
Canadian Installations
1
US Installations
2
A = Clearance above grade, veranda, porch, 12 in. (30 cm) 12 in. (30 cm)
deck or balcony
B = Clearance to window/door that may be opened 6 in. (15 cm) for appliances <10,000 Btuh 6 in. (15 cm) for appliances <10,000 Btuh
(3 kW); 12 in (30 cm) for appliances (3 kW); 9 in. (23 cm) for appliances
>10,000 Btuh (3 kW) and <100,000 Btuh >10,000 Btuh (3 kW) and <50,000 Btuh
(30 kW); 36 in. (91 cm) for appliances (15 kW); 12 in. (30 cm) for appliances
>100,000 Btuh (30 kW) >50,000 Btuh (15 kW)
C = Clearance to permanently closed window 12 in. (305 mm) recommended to 12 in. (305 mm) recommended to
prevent window condensation prevent window condensation
D = Vertical clearance to ventilated soffit located
above the terminal within a horizontal distance 18 in. (458 mm) 18 in. (458 mm)
of 2 ft. (610 mm) from the center line of the
terminal
E = Clearance to unventilated soffit 12 in. (305 mm) 12 in. (305 mm)
F = Clearance to outside corner (See next page.) (See next page.)
G =Clearance to inside corner (See next page.) (See next page.)
H = Clearance to each inside of center line 3 ft. (91 cm) within a height of 15 ft. (4.57 m) 3 ft. (91 cm) within a height of 15 ft. (4.57 m)
extended above meter/regulator assembly above the meter/regulator assembly above the meter/regulator assembly
I = Clearance to service regulator vent outlet 3 ft. (91 cm) 3 ft. (91 cm)
J = Clearance to non-mechanical air supply 6 in. (15 cm) for appliances <10,000 Btuh 6 in. (15 cm) for appliances <10,000 Btuh
inlet to building or the combustion air inlet (3 kW); 12 in. (30 cm) for appliances (3 kW); 9 in. (23 cm) for appliances
to any other appliance >10,000 Btuh (3 kW) and <100,000 Btuh >10,000 Btuh (3 kW) and <50,000 Btuh
(30 kW); 36 in (91 cm) for appliances (15 kW); 12 in. (30 cm) for appliances
>100,000 Btuh (30 kW) >50,000 Btuh (15 kW)
K = Clearance to a mechanical air supply inlet 6 ft. (1.83 m) 3 ft. (91 cm) above if within 10 ft. (3.05 m)
horizontally
L = Clearance above paved sidewalk or a 7 ft. (2.13 m)† 7 ft. (2.13 m)†
paved driveway located on public property
M = Clearance under veranda, porch, deck or 12 in. (30 cm)‡ 12 in. (30 cm)‡
balcony
N = Clearance above a roof shall extend a minimum of 24” (610 mm) above the highest point when it passes through the roof
surface,
and any other obstruction within a horizontal distance of 18” (450 mm).
General Venting Information–Termination Location
1 In accordance with current CSA-B149 Installation Codes.
2 In accordance with current ANSI Z223.1/NFPA 54 National Fuel Gas Codes.
† A vent shall not terminate directly above a sidewalk or paved driveway which is located between two single-family dwellings,
and which serves both dwellings.
‡ Only permitted if veranda/porch/deck is fully open on a of minimum two sides beneath the floor.
NOTES: • Local codes or regulations may require different clearances.
• The special venting system used on Vermont Castings, Majestic Products Direct Vent Fireplaces are certified
as part of the appliance, with clearances tested and approved by the listing agency.
V
V
V
V
V
V
V
X
X
X
D
E
B
B
B
C
B
M
B
AJK
F
L
VENT TERMINATION AIR SUPPLY INLET AREA WHERE TERMINAL IS NOT PERMITTED
H
I
Fixed
Closed
Fixed
Closed
Operable
Operable Fixed
Closed
V
B
INSIDE
CORNER DETAIL
V
A
G
V
NN
V
V
G
G
A
Fig. 11 Vent termination clearances
CFM145a

11
Vermont Castings, Majestic Products: DVR33
10004920
General Information for Connecting Vent Pipes
Crimped End Pipes
Before joining elbows and pipes, apply a bead of high
temperature sealant to the crimped end of the elbow or
pipe.
Join the pipes using a 2” (50 mm) overlap and secure
the joints with three sheet metal screws (Fig. 13). Wipe
off excess sealant.
Canadian Installations:
The venting system must be installed in accordance
with the current CSA-B149.1 installation code.
USA Installations:
The venting system must conform to local codes and/
or the current National Fuel Code ANSI Z223.1.
Only venting components manufactured by Vermont
Castings, Majestic Products may be used in Direct
Vent systems.
1" (25 mm) from
crimped end of pipe
Screw
CFM175
Fig. 13 Apply a bead of high temperature sealant.
Outside Corner
Inside Corner
Termination Clearances
Termination clearances for buildings with combustible and noncombustible exteriors.
A =
Combustible
6"(152mm)
Noncombustible
2"(50mm)
B =
Combustible
6"(152mm)
Noncombustible
2"(50mm)
A
Balcony -
with no side wall
G =
Combustible
NonCombustible
12"(305mm)
G
Balcony -
with perpendicular side wall
H = 24"(610mm)
J = 20"(508mm)
H
J
B
Recessed Location
C = Maximum depth of 48"
(1219mm) for recessed
location.
D=Minimum width for back wall
of a recessed location.
Combustible 38"(965mm)
Noncombustible 24"(610mm)
E = Clearance from corner in
recessed location.
Combustible 6"(152mm)
Noncombustible 2"(50mm)
CDC
E
V
V
Combustible &
NonCombustible
VV
V
CFM115
Fig. 12 Termination clearances.

12
Vermont Castings, Majestic Products: DVR33
10004920
Max. 20"
(508 mm)
Top view flat installation
Max. 20"
(508 mm)
Top view corner installation
FP1188
Fig. 15 Rear vent application, maximum horizontal distance.
Rear Wall Vent Installation
Step 1
Locate and cut the vent opening in the wall.
For combustible walls first frame in opening (Fig. 16).
Combustible Walls: Cut a 10³⁄₈”H x 9³⁄₈” W (265 mm
x 240 mm) hole through the exterior wall and frame as
shown.
Noncombustible Walls: Hole opening should be 7¹⁄₂”
(190 mm) in diameter.
Zero clearance sleeve is only required
for combustible walls.
Step 2
Measure wall thickness, and cut zero clearance sleeve
to proper length; i.e., max. 12” (304.8 mm). Assemble
sleeve to its maximum opening (10
3
⁄ 8 ” x 9
3
⁄ 8 ”) and
attach to firestop with #8 sheet metal screws
(supplied). Install firestop assembly (Fig. 17).
Step 3
Measure the horizontal length requirement for the
venting including a 2” (50 mm) overlap, i.e. from the
elbow to the outside wall face plus 2” (50 mm)
(Fig. 15).
Twist Lock Pipes
When using Vermont Castings, Majestic Products
twist-lock pipe it is not necessary to use sealant on the
joints. The only areas of the venting system that need
to be sealed with high temperature silicone sealant
are the collars on the fireplace and termination, and
the sliding joint of any telescopic vent section used in
the system.
To join twist lock pipes together, simply align the beads
of the male end with the grooves of the female end,
twisting the pipe until the flange on the female end
contacts external flange on the male end. It is recom-
mended that you secure the joints with three (3) sheet
metal screws, however this is not mandatory with twist
lock pipe (Fig. 14).
To make it easier to assemble the joints we suggest
putting a lubricant (Vaseline or similar) on the male
end of the twist lock pipe prior to assembly.
Male End Female End
Screw Holes TWL100
Fig. 14 Twist-Lock pipe joints.
Rear Wall Vent Application
When installed as a rear vent unit this appliance may
be vented directly to a termination located on the rear
wall behind the appliance
•Only Vermont Castings, Majestic Products vent-
ing components are approved to be used in these
applications (See Venting Components listedfor
different installation requirements).
•The maximum horizontal distance between the rear
of the appliance (or end of the transition elbow in a
corner application) and the outside face of the rear
wall is 20” (508 mm) (Fig. 15).
•Only one 45˚ elbow is allowed in these installations.
•The minimum clearances between any combustible
material and the vent pipe sections are:
Top 2” (50 mm)
Sides 1” (25 mm)
Bottom 1” (25 mm)

13
Vermont Castings, Majestic Products: DVR33
10004920
(240mm)
9³⁄₈"
10³⁄₈"
(254mm)
7¹⁄₂"
(190mm)
Vent Opening —
Combustible Wall
Vent Opening —
Noncombustible Wall
(framing detail)
CFM116
Fig. 16 Vent opening, side wall.
#8 Screws (2)
#8 Screws (2)
12"
(304.8 mm)
max.
Firestop (Side View) CFM135a
Fig. 17 Zero clearance sleeve.
Step 4
Install the 4” (100 mm) vent to the appliance collar and
secure with 3 sheetmetal screws. Install the 7”
(175 mm) vent pipe to the appliance collar and secure
with 3 sheetmetal screws. It is not necessary to seal
this connection. If a 45˚ elbow is being used attach the
elbow to the appliance in the same manner then attach
the venting to the elbow.
It is critical that there is no downward
slope away from the appliance when
connecting the vent or elbow.
Step 5
Guide the venting through the vent hole as you place
the appliance in its installed position. Guide the 4”
(100 mm) and 7” (175 mm) collars of the vent
termination into the outer ends of the venting. Do not
force the termination. If the vent pipes do not align with
the termination remove and realign the venting at the
appliance flue collars (Fig. 18). Attach the termination
to the wall as outlined in the instruction sheet supplied
with the termination.
Finished
Wall
These ends
screwed to
appliance These ends
should be even
Vent
Termination
FP1005
Fig. 18 Flat to the wall installation.

14
Vermont Castings, Majestic Products: DVR33
10004920
Since it is very important that the venting system
maintain its balance between the combustion air
intake and the flue gas exhaust, certain limitations
as to vent configurations apply and must be strictly
adhered to.
The Vent Graph, showing the relationship between
vertical and horizontal side wall venting, will help to
determine the various dimensions allowable.
Minimum clearance between vent pipes and com-
bustible materials is one 1” (25 mm) on top, bottom
and sides unless otherwise noted.
When vent termination exits through foundations less
than 20” (508 mm) below siding outcrop, the vent pipe
must flush up with the siding.
It is best to locate the fireplace a way that minimizes
the number of offsets and horizontal vent length.
The horizontal vent run refers to the total length of vent
pipe from the flue collar of the fireplace (or the top of
the Transition Elbow) to the face of the outer wall.
Horizontal plane means no vertical rise exists on this
portion of the vent assembly.
Vertical Sidewall Application
When installing the appliance as a rear
vent unit, the 90
° or 45 ° transition elbow
attached directly to the rear of the unit is
NOT INCLUDED in the following criteria
and calculations. Unless this transition
elbow is specifically mentioned, it
should be ignored when calculating
venting layouts.
Fig. 20 Maximum three (3) 90°elbows per installation.
Min. 7.5'
(2.3 m)
Max. 20' (6.1 m)
(3) x 90 degree elbows
How To Use the Vent Graph
The Vent Graph should be read in conjunction with the
following vent installation instructions to determine the
relationship between the vertical and horizontal
dimensions of the vent system.
1. Determine the height of the center of the horizontal
vent pipe exiting through the outer wall. Using this
dimension on the Sidewall Vent Graph (Fig. 19), locate
the point intersecting with the slanted graph line.
2. From the point of this intersection, draw a vertical
line to the bottom of the graph.
3. Select the indicated dimension, and position the
fireplace in accordance with same.
Example A:
If the vertical dimension from the floor of the fire-
place is 11’ (3.4 m) the horizontal run to the face of
the outer wall must not exceed 14’ (4.3 m)
Example B:
If the vertical dimension from the floor of the unit is
7’ (2.14 m) the horizontal run to the face of the
outer wall must not exceed 8¹⁄₂’ (2.6 m)
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20
eg: A
eg: B
Horizontal Dimension From the Outside Face of
the Wall to the Center of the Fireplace Vent Flange
Vertical Dimension From The Floor Of the unit
To The Centre Of The Horizontal Vent Pipe
Sidewall Vent Graph showing the relationship between vertical
and horizontal dimensions for a Direct Vent flue system. CFM102
Fig. 19 Sidewall venting graph. (Dimensions in feet.)
•The maximum number of 90˚ elbows per side wall
installation is three (3) (Fig. 20).

15
Vermont Castings, Majestic Products: DVR33
10004920
“A”
10’
(3048 mm)
7’6”
(2286 mm)
90°Elbow = 3’
V584-201
A + B = 17’ (5.2 m) max.
Fig. 22 Maximum vent run with elbows.
As shown in Fig. 22, the total of dimension A and B is
not to be greater than 17’ (5.2 m).
• The maximum number of 45˚ elbows permitted per
side wall installation is two (2). These elbows can
be installed in either the vertical or horizontal run.
• For each 45˚ elbow installed in the horizontal run,
the length of the horizontal run MUST be reduced
by 18” (45 cm). This does not apply if the 45˚
elbows are installed on the vertical part of the vent
system.
• The maximum number of elbow degrees in a
system is 270˚ (Fig. 23).
Example: Elbow 1 = 90˚
Elbow 2 = 45˚
Elbow 3 = 45˚
Elbow 4 = 90˚
Total angular variation = 270˚
Fig. 23 Maximum elbow usage.
Elbow 1
Elbow 2
Elbow 3
Elbow 4
Ignore
Transition
Elbow
1 + 2 + 3 + 4 = 270º
Fig. 21 Maximum horizontal run with no rise.
•If a 90˚ elbow is used in the horizontal vent run
(level height maintained), the maximum horizontal
vent length is reduced by 36” (914 mm) (Fig. 22).
This does not apply if the 90˚ elbows are used to
increase or redirect a vertical rise (Fig. 20).
Example: According to the vent graph (page 14), the
maximum horizontal vent length in a system with a
7.5’ (2.3 mm) vertical rise is 20’ (6 m), and if a 90˚
elbow is required in the horizontal vent, it must be
reduced to 17’ (5.2 m).
Max. 3'
(914 mm)
“B”
7’
(2134 mm)
Redirected
vertical rise

16
Vermont Castings, Majestic Products: DVR33
10004920
Vertical Sidewall Installation
#8 Screws (2)
#8 Screws (2)
12"
(304.8 mm)
max.
Firestop (Side View) CFM135a
Fig. 25 Adjustable zero clearance sleeve.
Zero clearance sleeve is required only
for combustible walls.
Fig. 26 Vertical height requirements.
Always install horizontal venting on
a level plane.
Step 6
Use the appropriate length of pipe sections—telescopic
or fixed—and install. The sections which go through
the wall are packaged with the starter kit, and can be
cut to suit if necessary.
NOTE: Sealing vent pipe and firestop gaps with
high temperature sealant will restrict cold
air being drawn in around fireplace.
X
Step 2
Measure wall thickness and cut zero clearance sleeve
parts to proper length (12” [305 mm] max.). Assemble
sleeve and attach to firestop with #8 sheetmetal
screws (supplied). Install firestop assembly (Fig. 25).
Step 1
Locate vent opening on the wall. It may be necessary
to first position the fireplace and measure to obtain
hole location. Depending on whether the wall is
combustible or noncombustible, cut opening to size.
(For combustible walls, frame in opening first (Fig. 24).
Combustible Walls: Cut a 9³⁄₈”H x 9³⁄₈” W (240 mm x
240 mm) hole through the exterior wall and frame.
Noncombustible Walls: Hole opening must be 7¹⁄₂”
(190 mm) in diameter.
Step 3
Place fireplace into position. Measure the vertical
height (X) required from the base of the flue collars to
the center of the wall opening (Fig. 26).
Step 4
Apply a bead of high temperature silicone sealant to
the inner and outer flue collars of the fireplace and
using appropriate length of pipe section(s) attach to
fireplace with three (3) screws. Follow with the installa-
tion of the inner and outer elbow, again secure joints
as described in the ‘Connecting Vent Pipe’ section.
Step 5
Measure the horizontal length requirement including a
2” (50 mm) overlap, i.e. from the elbow to the outside
wall face plus 2” (50 mm)—or the distance required if
installing a second 90˚ elbow (Fig. 27).
Vent Opening: Combustible Wall
Framing Detail
Fireplace Hearth
9
3/8”
(240 mm)
7
1/2”
Dia.
(190 mm) VO584-100
Vent Opening:
Noncombustible Wall
9
3/8”
(240 mm)
Fig. 24 Locate vent opening on wall.
VSW height X

17
Vermont Castings, Majestic Products: DVR33
10004920
Fig. 27 Horizontal length requirement.
Below Grade Installation
CFM193
Fig. 28 Below grade installation.
Do not backfill around snorkel.
A clearance of at least 4” (102 mm) must
be maintained between the snorkel and
the soil.
Step 7
Apply high temperature sealant to 4” (100 mm) and 7”
(175 mm) collars or the termination one inch away from
crimped end. Guide the vent terminations 4” and 7”
collars into their respective vent pipes. Double check
that the vent pipes overlap the collars by 2” (50 mm).
Secure the termination to the wall with screws provided
and caulk around the wall plate to weatherproof.
As an alternative to screwing the termination directly to
the wall, you may also use expanding plugs or an
approved exterior construction adhesive. Or, you may
attach the termination with screws through the inner
body into the 4” vent pipe—however, for this method,
you must extend the 4” pipe approximately 6”
(150 mm) beyond the outer face of the wall.
Support horizontal pipes every 3’
(91 cm) with metal pipe straps.
If installing a snorkel, a minimum 24” (610 mm) vertical
rise is necessary. The maximum horizontal run with the
24” (610 mm) vertical pipe is 36” (915 mm). This
measurement is taken from the collar of the fireplace
(or transition elbow) to the face of the exterior wall.
See the Sidewall Venting Graph for extended
horizontal run if the vertical exceeds 24” (610 mm).
1. Establish vent hole through the wall (Fig. 24,
page 16).
2. Remove soil to a depth of approximately 16”
(406 mm) below base of snorkel. Install drain pipe.
Install window well (not supplied). Refill hole with
12” (305 mm) of coarse gravel leaving a clearance
of approximately 4” (100 mm) below snorkel
(Fig. 28).
3. Install vent system.
4. Ensure a watertight seal is made around the vent
pipe coming through the wall.
5. Apply high temperature sealant caulking (supplied)
around the 4” and 7” snorkel collars.
6. Slide the snorkel into the vent pipes and secure to
the wall.
7. Level the soil so as to maintain a 4” clearance
(100 mm) below snorkel (Fig. 28).
Gravel
Drain
Firestop
Foundation wall
Window
well
7DVSKS
(Snorkel)
Ground
24" (608 mm)
min. *
Minimum 24" (608 mm)
vertical pipe must be installed
when using 7DVSKS Kit.
*
7" pipe Screws Min. clearance
4" (102 mm)
Zero Clearance Sleeve,
if required
When it is not possible to meet the required vent terminal
clearances of 12” (305 mm) above grade level, a Snorkel
Vent Kit #7DVSKS is recommended. It allows installation
depth down to 7” (178 mm) below grade level. The 7”
(178 mm) is measured from the center of the horizontal
vent pipe as it penetrates through the wall.
NOTE: Ensure that sidewall venting clearances
are observed. If the venting system is
installed below ground, we recommend
a window well with adequate and proper
drainage to be installed around the
termination area.
CFM137
High Temperature
Sealant
X

18
Vermont Castings, Majestic Products: DVR33
10004920
Watertight
Seal Around
Pipe
Foundation
Recess
Sheetmetal screws
Wall screws
Snorkel
CFM139
Fig. 29 Snorkel installation, recessed foundation.
This Gas Fireplace has been approved for,
•Vertical installations up to 40’ (12 m) in height. Up to
a 10’ (3 m) horizontal vent run can be installed within
the vent system using a maximum of two 90°elbows
(Fig. 30).
Vertical Through-the-Roof Applications
If the foundation is recessed, use recess brackets (not
supplied) for securing lower portion of the snorkel.
Fasten brackets to wall first, then secure to snorkel with
self drilling #8 x 1/2 sheet metal screws. It will be
necessary to extend vent pipes out as far as the
protruding wall face (Fig. 29).
•Up to two 45°elbows may be used within the
horizontal run. For each 45°elbow used on the
horizontal plane, the maximum horizontal length
must be reduced by 18” (450 mm).
Example: Maximum horizontal length
No elbows = 10’ (3 m)
1 x 45°elbows = 8.5’ (2.6 m)
2 x 45°elbows = 7’ (2.1 m)
• A minimum of an 8’ (2.5 m) vertical rise is required.
• Two sets of 45°elbows offsets may be used within
the vertical sections. From 0 to a maximum of 8’
(2.5 m) of vent pipe can be used between elbows
(Fig. 30).
• 7DVCS supports offsets (Fig. 32). This application
will require that you first determine the roof pitch
and use the appropriate starter kit. (See Venting
Components List).
• The maximum angular variation allowed in the
system is 270°(Fig. 31).
• The minimum height of the vent above the highest
point of penetration through the roof is 2’ (610 mm)
(Fig. 33).
Fig. 30 Support straps for horizontal runs.
Max. 10' (3.1 m)
Max. 40' (12 m)
Min. 7.5' (2.3 m)
TTR max dim
Fig. 31 Maximum elbow usage.
45 degree elbows
*
*
*
Maximum
8' (2.5m)
TTR_max45

19
Vermont Castings, Majestic Products: DVR33
10004920
11" 11"
Attic Insulation
Shield
Upper Floor
Ceiling
Installation
Joist
Nails (4)
Firestop
Spacer
FP1029
Fig. 32 Attic insulation shield and firestop spacer.
Typical
Roof
Support
Application
Typical Ceiling
Support
Application
FP1184
Fig. 32 Venting supports.
Min.
2’ (610 mm)
FP1189
Fig. 33 Minimum termination to roof clearance.
(3) #5
Sheet Metal
Screws
per Joint
Sealant
Storm
Collar
TWL101a
Fig. 34 Roof flashing.
1. Locate your fireplace.
2. Plumb to center of the (4”) flue collar from ceiling
above and mark position.
3. Cut opening equal to 9
3
/ 8 ” x 9
3
/ 8 ” (240 mm x
240 mm).
4. Proceed to plumb for additional openings through
the roof. In all cases, the opening must provide a
minimum of 1 inch clearance to the vent pipe, i.e.,
the hole must be at least 9
3
/ 8 ” x 9
3
/ 8 1 (240 mm x
240 mm).
5. Place fireplace into position.
6. Place firestop(s) #7DVFS or Attic Insulation Shield
#7DVAIS into position and secure (Fig. 32).
7. Install roof support (Fig. 33) and roof flashing,
making sure upper flange is below the shingles
(Fig. 34).
8. Install appropriate pipe sections until the venting is
above the flashing (Fig. 34).
9. Install storm collar and seal around the pipe.
10.Add additional vent lengths for proper height
(Fig. 33).
11.Apply high temperature sealant to 4” and 7” collars
of vertical vent termination and install.
If a room is above ceiling level, a firestop
spacer must be installed on each level
(top and bottom) of the ceiling joists.
If an attic is above ceiling level, a 7DVAIS
(Attic Insulation Shield) must be
installed. Always face the enlarged ends
of the vent section downward.
Vertical Through-the-Roof Installation
(3) #5
Sheet Metal
Screws
per Joint
Sealant
Storm
Collar

20
Vermont Castings, Majestic Products: DVR33
10004920
DVR33 Bracket Restricter Installation
Fig. 35 Baffle firebox assembly
NOTES: When installing DVR33 with a vertical
through-the-roof configured flue system,
the bracket restricter supplied with the
appliance (part# 10002910) should be
fitted to the appliance at installation.
For DVR33 numbers A12H00, A12I00,
A14A00 and A14B00 only, the restricter
plate for the vertical termination (part#
10003246) must be installed for vertical
runs over 20’ (6.1 m).
Fitting the Bracket Restricter
1. Remove the window glass/frame assembly. Locate
the baffle firebox assembly in the top rear of the
firebox (Fig. 35).
2. Remove the four (4) nuts along the front edge, and
the three (3) screws along the rear edge of the
baffle assembly. Remove the baffle assembly from
the firebox.
3. Remove the two (2) screws from the top face of the
baffle assembly (Fig. 36). Place the bracket
restricter as it is shown in Fig. 37, and secure it by
refitting the screws.
4. Refit the baffle assembly to the firebox,
replacing the three (3) screws and four (4) nuts.
5. Refit window glass/frame per the appropriate
sections.
Fig. 36 Top face of baffle assembly
Fig. 37 Assembling bracket restricter to baffle assembly
Baffle firebox assembly