
ARISTOCRAT™
MODEL V36EC2
®
LOUVERED CIRCULATING
WOOD-BURNING FIREBOX
INSTALLATION INSTRUCTIONS
SAVE THIS BOOK
This book is valuable. In addition to instructing you
on how to install and maintain your appliance, it also
contains information that will enable you to obtain
replacement parts or optional accessory items when
needed. Keep it with your other important papers.
ROUND TOP
TERMINA TION
21 3/8
13
5/8
FLASHING
FIRESTOP
5
/16
42
35
36
41
23
33
1
/4
1
3
/4
STORM
COLLAR
0 IN. TO
TOP
SPACER
17.22
35.75
(2-PIECE BOTTOM
REFRACTORY)
2 IN. AIRSPACE
TO COMBUSTIBLE
MATERIAL
16.07
ECONO-TOP
TERMINATION
COMBUSTIBLE
WALL BOARD
1
9
/2
8
®
DESA INTERNATIONAL,
2701 INDUSTRIAL DRIVE
P.O. BOX 90004
BOWLING GREEN, KY
42102-9004
9
5
/8
19
Model
Serial No.
Date Purchased
AIR KIT K/O
GAS LINE K/O
3/4" AIR SPACE
BACK AND SIDES
OUTSIDE AIR
(LEFT SIDE ONLY)
0 IN. TO
BOTTOM
8 IN.
EACH SIDE
NO COMBUSTIBLE
MATERIAL ON FACE
NOT LESS
THAN 18 IN.
TO PERPENDICULAR
SIDEWALL
HEARTH EXTENSION
52 IN. X 16 IN.
55504
Rev. B
08/99

41 3/4"
42
1
/4"
22
7
/8"
10
1
/4"
FOR YOUR SAFETY
• Do not store or use gasoline or any other flammable vapors or liquids in the vicinity of this or any
other appliance.
• Due to high temperatures, the appliance should be
located out of traffic and away from furniture and
draperies.
• Do not place clothing or other flammable materials
on or near the appliance.
• NEVER leave children unattended when a fire is
burning in the firebox.
WARNING: IMPROPER INSTALLATION, ADJUSTMENT, ALTERATION, SERVICE OR MAINTENANCE
CAN CAUSE INJURY, PROPERTY DAMAGE, OR LOSS
OF LIFE. REFER TO THIS MANUAL. FOR ASSISTANCE OR ADDITIONAL INFORMATION CONSULT A
QUALIFIED INSTALLER OR LOCAL DISTRIBUTOR.
WARNING: THIS FIREBOX IS INTENDED FOR USE
WITH WOOD, OR IF A VENT-FREE OR DECORATIVE
GAS APPLIANCE IS INSTALLED, BURN PROPANE
OR NATURAL GAS ONLY.
CHECK LOCAL CODES PRIOR TO INSTALLATION
INSTALLATION INSTRUCTIONS
INTRODUCTION
Before beginning the installation of your firebox, read these instructions through completely.
These Vanguard components and firebox are safe when installed
according to this Installation Manual. Unless you use Vanguard
components, which have been designed and tested for the firebox
systems, you may cause a fire hazard.
This wood burning fireplace complies with UL 127 as a
FACTORY BUILT FIREPLACE and is listed and tested by
Underwriters Laboratory Inc.
This model is not for use in mobile homes.
The DESA International warranty will be voided by, and DESA
International disclaims any responsibility for the following actions.
a) Modification of the firebox, components, doors, air inlet system
and the damper control.
b) Use of any component part not manufactured or approved by DESA
International in combination with DESA International firebox systems.
MINIMUM CLEARANCE TO COMBUSTIBLE
MATERIAL
Framing and enclosures may safely make direct contact with the
spacer on the top of the firebox. The firebox may sit directly on
combustible flooring (see step 4). The firebox opening must not be
less than 14 inches from a combustible perpendicular sidewall. A 2inch minimum air space clearance between combustible materials
and the chimney must be absolutely maintained. A 16
1
/2 inch inside
chase dimension is recommended as a minimum size. A 3/4 inch air
space required around back and sides of firebox.
WARNING: DO NOT PACK REQUIRED AIR SPACES
WITH INSULATION OR OTHER MATERIALS.
HEIGHT
The minimum height of the chimney, measured from the base of the
firebox to the flue gas outlet, is 14 feet for straight flues or a flue with
one elbow set. For systems with 2 elbow sets, the minimum height
is 22 feet. The maximum height of any system is 60 feet. This
measurement includes the firebox, chimney sections and the effective height of the termination assembly.
INSTALLING THE FIREBOX
STEP 1: Frame the opening for the firebox using the dimensions
shown in Figure 1, Figure 2, or Figure 3, page 3.
STEP 2: Set the firebox directly in front of this opening and slide the
unit back until the mounting flanges touch the side framing.
STEP 3: Check the level of the firebox and shim with sheet metal if
necessary.
STEP 4: When the firebox is installed upon a combustible floor a
galvanized sheet ember protector (provided) must be installed between the firebox and the hearth extension as illustrated.
STEP 5: Secure the firebox to the framing through the nailing flanges
located on the sides on the firebox with 8-penny nails or sheet rock screws.
WARNING: DO NOT USE A FIREBOX INSERT IN THIS
FIREBOX UNLESS THE MANUFACTURER'S INSTRUCTIONS WITH THE INSERT SPECIFICALLY
STATE THIS FIREBOX HAS BEEN TESTED FOR USE
WITH THE INSERT.
PROPER INSTALLATION is the most important step in ensuring
safe and continuous operation of this firebox. Consult the local
building codes as to the particular requirements concerned with the
installation of all factory-built fireboxes. Although grounding may
not be required by code the manufacturer recommends it.
This firebox is not intended to be used as a substitute
for a furnace to heat an entire home. Use for supple-
mentary heating only.
Figure 1
Figure 2
2
FRAMING DIMENSIONS
Maintain 3/4"
air space between
framing and
fireplace.
3
41
/4"
MIN
3
62
/16"
MIN
FRAMING DIMENSIONS
13 1/4"
MIN
43
MIN
7
/8"
55504

5
14
MIN
/16"
Maintain 3/4"
air space between
framing and
fireplace.
Figure 3
1
10
/2"
MIN
4"
3
24
/4"
FRAMING DIMENSIONS AT 30°
ASSEMBLING AND INSTALLING YOUR
DOUBLEWALL CHIMNEY SYSTEM
Each double wall chimney section consists of an outer pipe, flue pipe
and one wire spacer. The pipe sections are not galvanized and must
be assembled independently as the chimney is installed. When
starting the chimney directly on the firebox, the flue pipe section
must be installed first, with the flared end with lances up. The outer
pipe section can then be installed over the flue pipe section with the
hemmed end up (see Figure 4).
Press down on each pipe section until the lances on the lower end
securely engage the knurl on the firebox collar. The wire spacer will
assure the proper spacing between the inner and outer pipe sections.
WARNING: THE OPENINGS IN THE COLLAR AROUND
THE BASE OF THE CHIMNEY AT THE TOP OF THE
FIREBOX MUST NOT BE OBSTRUCTED, NEVER USE
BLOWN INSULATION TO FILL THE CHIMNEY ENCLOSURE (SEE FIGURE 5).
Continue to assemble chimney sections as outlined above, making
sure both inner and outer pipe sections are locked together. When
installing double wall "snap lock" chimney together, it is important
to assure the joint between the chimney sections are locked. Check
by pulling chimney upward after locking. The chimney will not
come apart if properly locked. It is not necessary to add screws to
keep the chimney together.
LINEAL GAIN: THE ACTUAL
MEASURABLE LENGTH OF A
PART AFTER TWO OR MORE
PARTS ARE CONNECTED.
3
12
/8 GALVANIZED
OUTER PIPE
HEMMED
END
8 IN.
STAINLESS
INNER PIPE
Figure 4
V36EC2 FIREBOX 42
V12-8DM PIPE SECTION 10 5/
V18-8DM PIPE SECTION 16 5/
V24-8DM PIPE SECTION 23 5/
V36-8DM PIPE SECTION 34 5/
V48-8DM PIPE SECTION 46 5/
VRTL-8DM ROUND
VRTTL-8DM TERMINATION 6
VADS-8DM
VETL-8DM
VETO-8DM CHASE
VETLO-8DM TERMINATION 1 to 12
VET-8DM
LINEAL GAIN
PART GAIN
NO. DESCRIPTION (IN)
8
8
8
8
8
FIREPLACE
COLLAR
KEEP THIS
AREA OPEN
Figure 5
Figure 6
Figure 7
FIRESTOP SPACERS - VFS-8DM
Firestop spacers are required at each point where the chimney
penetrates a floor or ceiling joist space. Their purpose is two fold;
they establish and maintain the required clearance between the
chimney and combustible materials.
They also provide complete separation from one floor space to
another floor or attic space as required by most codes.
When the double wall pipe passes though a framed opening into an
attic space, the firestop must be placed into the attic floor as in Figure
6. When the pipe passes through a framed opening into a living space
above, the firestop must be placed onto the ceiling from below as in
Figure 7.
SUPPORT SECTIONS
The chimney support section is a 12-inch length double wall pipe
with 4 straps. A chimney support is required every 30 feet above the
firebox after a straight chimney run, or above a return elbow after a
straight chimney run (see Figure 8). This support is designed to
relieve the extra weight load on the firebox and elbows when high
chimneys are installed.
V12S-8DM
V12S-8DM
SUPPORT
30 FT.
SUPPORT
30 FT.
RETURN
ELBOW
55504
Figure 8
3