Osburn 2400 User manual

READ AND KEEP THIS MANUAL FOR REFERENCE
45111A
Printed in Canada 11-06-2014
OWNER`S MANUAL
2400 MODEL INSERT
US ENVIRONMENTAL PROTECTION
AGENCY PHASE II CERTIFIED
WOOD INSERT
Verified and tested following
ULC S628 and UL 1482 Standards
by:
Manufactured by: STOVE BUILDER INTERNATIONAL INC..
250, rue de Copenhague, Saint-Augustin-de-Desmaures (Quebec) G3A 2H3
Tel.: [phone]
Fax: [phone]
www.osburn-mfg.com
This manual is available for free download on the manufacturer’s web site. It is a
copyrighted document. Re-sale is strictly prohibited. The manufacturer may update this
manual from time to time and cannot be responsible for problems, injuries, or damages
arising out of the use of information contained in any manual obtained from unauthorized
sources.

1
INTRODUCTION
SBI INC., one of the most important wood stove and fireplace manufacturers in Canada,
congratulates you on your purchase and wishes to help you get maximum satisfaction from your
wood stove. In the pages that follow, we will give you advice on wood heating and controlled
combustion as well as technical specifications regarding installation, operation and maintenance
of the model you have chosen.
The instructions pertaining to the installation of your wood stove comply with ULC-S628 and UL-
1482 standards.
We recommend that our wood burning hearth products be installed and serviced by
professionals who are certified in the United States by NFI (National Fireplace Institute®) or in
Canada by WETT (Wood Energy Technical Training) or in Quebec by APC (Association des
Professionnels du Chauffage).
Read this entire manual before you install and use your new stove. If this stove is not
properly installed, a house fire may result. To reduce the risk of fire, follow the
installation instructions. Failure to follow instructions may result in property damage,
bodily injury, or even death.
Consult your municipal building department or fire officials about restrictions and
installations requirements in your area and the need to obtain a permit.
Keep this instructions manual for future references.
CAUTIONS:
 THE INFORMATION GIVEN ON THE CERTIFICATION LABEL AFFIXED TO THE APPLIANCE ALWAYS
OVERRIDES THE INFORMATION PUBLISHED, IN ANY OTHER MEDIA (OWNER’S MANUAL, CATALOGUES,
FLYERS, MAGAZINES AND/OR WEB SITES).
 HOT WHILE IN OPERATION. KEEP CHILDREN, CLOTHING AND FURNITURE AWAY. CONTACT MAY CAUSE
SKIN BURNS.
 DO NOT USE CHEMICALS OR FLUIDS TO IGNITE THE FIRE.
 DO NOT LEAVE THE STOVE UNATTENDED WHEN THE DOOR IS SLIGHTLY OPENED.
 DO NOT BURN WASTES, FLAMMABLE FLUID SUCH AS GASOLINE, NAPHTHA OR MOTOR OIL.
 DO NOT CONNECT TO ANY AIR DISTRIBUTION DUCT OR SYSTEM.
 ALWAYS CLOSE THE DOOR AFTER THE IGNITION.
This heating unit must serve as a supplementary heat source. An alternative heat source should be available in the home if
needed. The manufacturer cannot be responsible for additional heating costs associated with the use of an alternative heat
source.
It is highly recommended that the user buys this product from a retailer who can provide installation and maintenance advices.

2
TABLE OF CONTENTS
1.0 PRE-INSTALLATION REQUIREMENTS ................................................................................... 3
1.1 MASONRY FIREPLACE REQUIREMENTS ............................................................................................ 3
1.2 VENTING REQUIREMENTS ................................................................................................................ 4
1.3 DOOR OVERLAY INSTALLATION ...................................................................................................... 5
2.0 INSTALLATION .............................................................................................................................. 6
2.1 SAFETY INFORMATION .......................................................................................................................... 6
2.2 INSTALLATION INSTRUCTIONS ............................................................................................................... 7
2.3 COMPLIANCE OF THE MASONRY FIREPLACE .......................................................................................... 7
2.4 THE MASONRY FIREPLACE'S DRAFT CONTROL SYSTEM .......................................................................... 8
2.5 COMPLIANCE OF A COMBUSTIBLE TOP SHELF ........................................................................................ 8
2.6 POSITIONING THE UNIT .......................................................................................................................... 9
2.7 MINIMUM MASONRY OPENING, CLEARANCES TO COMBUSTIBLES, AND FLOOR PROTECTOR ................. 13
2.8 CONNECTOR INSTALLATION ................................................................................................................ 15
2.8.1 CHIMNEY LINER INSTALLATION ....................................................................................................... 16
2.8.1.1 IF THE CHIMNEY LINER DOES ALIGN WITH THE INSERT’S FLUE OUTLET, YOU HAVE TWO OPTIONS: 16
2.8.1.2 IF THE CHIMNEY LINER DOES NOT ALIGN WITH THE INSERT’S FLUE OUTLET: ................................. 17
2.9 FACEPLATE INSTALLATION ........................................................................................................... 17
3.0 OPERATION ................................................................................................................................... 23
3.1 SAFETY INFORMATION .................................................................................................................. 23
3.2 FUEL ............................................................................................................................................. 24
3.2.1 SIMPLE WOOD MOISTURE TEST ...................................................................................................... 25
3.3 NOTES ABOUT FIRST FIRING .......................................................................................................... 25
3.4 LIGHTING A FIRE ........................................................................................................................... 25
3.5 MAINTAINING THE FIRE ................................................................................................................. 26
3.6 FAN OPERATION ............................................................................................................................ 27
4.0 MAINTENANCE ............................................................................................................................ 28
4.1 CARE AND CLEANING .................................................................................................................... 28
4.2 ASH REMOVAL .............................................................................................................................. 28
4.3 CHIMNEY CLEANING ..................................................................................................................... 29
4.4 CREOSOTE – FORMATION AND NEED FOR REMOVAL ...................................................................... 29
4.5 SECONDARY AIR TUBE REPLACEMENT (SEE FIGURE 4.5) ............................................................... 30
5.0 TROUBLESHOOTING .................................................................................................................. 31
6.0 SPECIFICATIONS ......................................................................................................................... 32
OSBURN LIMITED LIFETIME WARRANTY .................................................................................... 33
REGISTER YOU WARRANTY ONLINE
To receive full warranty coverage, you will need to show evidence
of the date you purchased your insert. Keep your sales invoice.
We also recommend that you register your warranty online at
http://www.osburn-mfg.com/warranty-registration.aspx
Registering your warranty online will help us track rapidly the
information we need on your insert.

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1.0 PRE-INSTALLATION REQUIREMENTS
1.1 Masonry fireplace requirements
The masonry fireplace must meet the minimum code requirements, or NFPA 211 or the equivalent
for a safe installation. Contact your local Building Inspector for requirements in your area. An
inspection of the fireplace should include the following:
1. CONDITION OF THE FIREPLACE AND CHIMNEY:
Examine the masonry fireplace and chimney prior to installation, to determine that they are free
from cracks, loose mortar, creosote deposits, blockage, or other signs of deterioration. If
evidence of deterioration is noted, the fireplace or chimney should be upgraded prior to
installation.
2. CHIMNEY CAPS:
Mesh type chimney caps must have provision for regular cleaning, or the mesh should be
removed to eliminate the potential of plugging.
3. LINER:
The chimney must have an acceptable 6" (152 mm) stainless steel chimney liner installed.
NOTE: The 2400 Insert is not approved for use with a positive flue connector into a masonry
flue.
4. ADJACENT COMBUSTIBLES:
The fireplace should be inspected to make sure that there is adequate clearance to
combustibles, both exposed combustibles to the top, side, and front as well as concealed
combustibles, in the chimney and mantel area. Your local inspector should have information on
whether older fireplaces are of adequate construction.
5. OPENING SIZE:
Refer to “Minimum masonry opening” (Section 2.7) for suitable size fireplace openings.
NOTE: A METAL TAG IS PROVIDED AND IS TO BE FASTENED TO THE BACK WALL OF THE
FIREPLACE, IF THE FIREPLACE HAS BEEN MODIFIED TO ACCOMMODATE THE
INSERT.

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1.2 Venting requirements
The flue is a critical component to a satisfactory installation. Your insert will attain its best
performance if installed with a flue that generates its own draft. The minimum venting requirement
will be the installation of a flue connector from the insert into the first tile of the chimney. If you are
using a masonry chimney, it is important that it be built in compliance with the specifications of the
National Building Code or other applicable standard having jurisdiction. It must be lined with fire clay
bricks, metal or clay tiles sealed together with fire cement (round flues are the most efficient). Ideally,
the interior diameter of the masonry chimney should be identical to the insert smoke exhaust. You
may also run a stainless steel liner inside the masonry chimney. A continuous 6" (152mm) stainless
steel liner from the top of the chimney to the insert’s smoke exhaust is the optimum system and will
provide the best performance, as well as compensate for poor draft situations caused by large
cross-sectional chimneys. The insert will not work without a positive seal in the chimney.
Chimneys constructed outside of the home, on an exterior wall, should be avoided if possible,
especially in colder climates. Outside chimneys may not draw as well and may downdraft due to the
difficulty in heating them up to operating temperature. Cooler chimneys will result in increased
creosoting, less draft, and poorer performance. Draft is proportional to overall chimney height as
well as to stack temperature. Draft can be increased by increasing chimney height, and by reducing
heat loss from the chimney through an insulated liner.
Ensure that all joints in the flue systems are tightly sealed, since any leaks will result in reduced
performance as well as a possible safety hazard. Using a fire screen at the extremity of the chimney
requires regular inspection in order to insure that it is not obstructed thus blocking the draught, and it
should be cleaned when necessary.
Do not connect this unit to a chimney flue serving another appliance.
This heating unit must serve as a supplementary heat source. An alternate heat source should be
available in the home if needed. The manufacturer cannot be responsible for additional heating
costs associated with the use of an alternative heat source.
It is recommended that the user buys this product from a retailer who can provide installation and
maintenance advices.

5
1.3 Door overlay installation
In order to complete the assembly of your Osburn 2400 wood insert, you need to install the door
overlay. See figure 1 below for installation instructions:
Figure 1
1- Position the overlay on the door frame and fix it in place from behind using the 4
screws.
Note: It is not necessary to remove the glass or any other component to install the overlay.

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2.0 INSTALLATION
2.1 Safety information
NOTE: THIS APPLIANCE IS NOT RECOMMENDED FOR USE IN A HOME IF AN OCCUPANT HAS
ANY RESPIRATORY OR ANY OTHER RELATED PROBLEMS.
1. It is important to follow the installation and operation instructions. An improperly installed
or operated insert could result in a safety hazard or fire, or damage to the unit, which
would not be covered by the warranty. Contact local building or fire officials about
restrictions and installation requirements in your area. You should be familiar with the
installation and be sure that the work is done in accordance with this manual.
WARNING: DO NOT INSTALL THIS INSERT IN A SLEEPING ROOM.
2. Where lesser clearances are desired, consult your local authority as regulations may vary
regarding the use of clearance reducing devices. Listed wall and floor shields are
available to reduce clearances, and most building codes provide information on materials
which may be used to reduce clearances.
3. Maintain at least the minimum clearances to combustible material as specified in this
manual. Clearances are measured to the nearest part of the insert (i.e. top edge on the
side). Clearances to any combustibles, when measured directly out from the front, must
be a minimum of 48" (1219mm).
4. Maintain at least the minimum floor protection for combustible floor materials as specified
in this manual. Floor protection to the front is to be measured from the fuel loading door
opening.
5. Osburn recommends that you install a listed smoke detector or alarm in your home.
Normal operation of the insert will have no effect on the detector or alarm.
6. The insert is to be connected only to a lined masonry chimney and masonry fireplace
conforming to building codes for use with solid fuel. Do not remove bricks or mortar from
the existing fireplace when installing the insert.
7. Minimum chimney size is 6" (152mm) diameter. Maintain a 15' (4.5m) minimum overall height
measured from the base of the appliance. Chimneys should be inspected to check for
deterioration and to determine if they meet the minimum requirements, and be upgraded if
necessary. The chimney must extend at least 3' (914mm) above the roof and at least 2' (610mm)
above the highest point within an area of 10' (3m) of the chimney.
8. Do not use makeshift compromises during installation, as they could create a safety
hazard and a fire could result.
9. DO NOT CONNECT THIS APPLIANCE TO THE CHIMNEY OR FLUE SERVING
ANOTHER APPLIANCE.

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2.2 Installation instructions
Inspect the masonry fireplace according to the safety information and fireplace requirements and
have it cleaned and/or upgraded as necessary.
2.3 Compliance of the masonry fireplace
Where the masonry fireplace opening is 6 ft2 (0.56 m2) or larger, the hearth extension shall extend
at least 20'' (508 mm) in front of the facing material and at least 12'' (305 mm) beyond each side of
the fireplace opening. Where the masonry fireplace opening is less than 6 ft2 (0.56 m2), the hearth
extension shall extend at least 16'' (406 mm) in front of the facing material and at least 8'' (203
mm) beyond each side of the fireplace opening.
Note that if you must modify the hearth extension to comply with these measures, depending on
the size of the masonry fireplace opening, the hearth extension must have a minimum of
4'' (102 mm ) thick (see Figure 2.6a and 2.6b.)

8
2.4 The masonry fireplace's draft control system
If the fireplace's draft control system is to remain in the masonry fireplace, it must be locked open
for access of the chimney liner or removed entirely. If you remove draft control system from the
masonry hearth, you will need to install the metal plate (27009), supplied with the owner’s manual
kit, indicating that the masonry hearth has been modified. It must be secured inside the masonry
hearth, in a visible place and easy to locate.
2.5 Compliance of a combustible top shelf
To ensure compliance of an existing top shelf or to install any combustible shelf, refer to table
below and Figure 2.5 for a safe installation or to perform changes if necessary. For example, a
shelf with a 6’’ depth (152 mm) must be installed at least 25 1/2" (648 mm) above the top of the
insert (see Figure 2.5). Different shelf dimensions are listed in the following table in order to
facilitate installation. However, no combustible shelf can be installed at less than 25 1/2"
(648 mm) above the top of the insert. If the depth of the shelf is not listed in the table, add 19
1/2" (495 mm) to the depth of your shelf to obtain the safe positioning of your shelf. For example,
for a 9" (229 mm) shelf, the safe positioning would be 28 1/2" (724 mm) above the top of the
insert (19 1/2" (495 mm) + 9" (229 mm)).
SHELF POSITIONING
MAXIMUM SHELF
DIMENSION (X)
SHELF POSITION
(I)
6" / 152 mm 25 1/2" / 648 mm
8" / 203 mm 27 1/2" / 698 mm
10" / 254 mm 29 1/2" / 749 mm
12" / 305mm 31 1/2" / 800 mm

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2.6 Positioning the unit
In addition to ensuring compliance of the masonry fireplace hearth extension (see Compliance
of the masonry fireplace in Section 2.3), it is necessary to have a floor protection made of non-
combustible materials that meets the measurements specified in table FLOOR PROTECTION
(see Section 2.7). To determine the need to add a floor protection (D) beyond the hearth
extension, you must do the following calculation using the data in Table Data for floor
protection calculation of this section: D = B - (A - C). If the value (D) is negative or zero, you
do not have to add more floor protection in front of the unit, because the masonry fireplace
hearth extension is long enough. If the value (D) is positive, you will need a floor protection in
front of the hearth extension at least equivalent to the result (D).
Here is a sample calculation to determine the need to add a non-combustible materials floor
protection. For someone living in the USA whose fireplace opening is less than 6 ft2 and which
the insert would protrude 3" (76 mm) into the room (C) the calculation would be:
Value D = B - (A - C)
Value D = 16" - (16" - 3")
Value D = 16" - 13"
Value D = 3"
This person should install a non-combustible floor protection of at least 3" (76 mm) in front of
the fireplace hearth extension.

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If a non-combustible material floor protection needs to be added in front and level with the hearth
extension masonry fireplace (see Figure 2.6a), an R factor equal to or greater than 1.00 is
required. If the extension of the masonry hearth is raised at least 4" from the floor protection
(see Figure 2.6b), a non-combustible material without an R factor is sufficient.
Figure 2.6a
Figure 2.6b

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The use of an R value is convenient when more than one material is going to be used in the
hearth extension to cover the combustible surface. This is because R values are additive,
whereas K values are not. To find the corresponding R factor to use for some selected materials,
please see Table Thermal characteristics of common floor protection materials in this
section.
There are two ways to calculate the R factor of the floor protection. First, by adding the R-values
of materials used, or by the conversion if the K factor and thickness of the floor protection are
given.
To calculate the total R factor from R factors of the materials used, simply add the R-values of
materials. If the result is equal to or greater than the R-value requirements, the combination is
acceptable. To know the R-values of some selected materials, see table Thermal
characteristics of common floor protection materials.
Example:
Required floor protection R of 1.00. Proposed materials: four inches of brick and one inch
of Durock® board
Four inches of brick (R = 4 x 0,2 = 0,8) plus 1 inch of Durock® (R = 1 x 0.52 = 0.52).
0.8 + 0.52 = 1.32.
This R value is larger than the required 1.00 and is therefore acceptable
In the case of a known K and thickness of alternative materials to be used in combination,
convert all K values to R by dividing the thickness of each material by its K value. Add the R
values of your proposed materials as shown in the previous example.
Example:
K value = 0.75
Thickness = 1
R value = Thickness/K = 1/0.75 = 1.33

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The more extended the insert, the greater the heat transfer to the room. When installed as an
extended insert, the front edge of the air jacket will be installed flush with the fireplace facing.
Otherwise the unit can be moved back as much as 3 3/4" (95 mm) or any position in between.
The position chosen will depend on your own preference for most installations, your current
configuration, the compliance with the preceding installation instructions and compliance with the
building code requirements. To determine the minimum and maximum protrusion of the insert,
refer to table Data for floor protection calculation.
Data for floor protection calculation
MAXIMUM
EXTENDED
A B
(Note 1) C E AIR JACKET
Smaller
than 6 ft2 *
Bigger or
= to 6 ft2 *
INCHES 16" 20" CAN: 18"
USA: 16" 7" 8 1/2" Flush with
fireplace
facing
MILLIMETRES 406 mm 508
mm
CAN: 457 mm
USA: 406 mm 178 mm 216 mm
MINIMUM
EXTENDED
A B
(Note 1) C E AIR JACKET
Smaller
than 6 ft2 *
Bigger or
= to 6 ft2 *
INCHES 16" 20" CAN: 18"
USA: 16" 3 1/4" 12 1/4" Back from
fireplace
facing 3 3/4"
MILLIMETRES 406 mm 508
mm
CAN: 457 mm
USA: 406 mm 83 mm 311 mm
*Refers to masonry fireplace opening.

13
Thermal characteristics of common floor protection materials*
MATERIAL
CONDUCTIVITY (k)
PER INCH
RESISTANCE (R) PER INCH
THICKNESS
Micore
®
160 0.39 2.54
Micore
®
300 0.49 2.06
Durock
®
1.92 0.52
Hardibacker
®
1.95 0.51
Hardibacker
®
500 2.3 0.44
Wonderboard
®
3.23 0.31
Cement mortar 5.00 0.2
Common brick 5.00 0.2
Face brick 9.00 0.11
Marble 14.3 – 20.00 0.07 – 0.05
Ceramic tile 12.5 0.008
Concrete 1.050 0.950
Mineral wool insulation 0.320 3.120
Limestone 6.5 0.153
Ceramic board (Fibremax) 0.450 2.2
Horizontal still air** (1/8") 0.135 0,920**
* Information as reported by manufacturers and other resources
** For a 1/8" thickness. You cannot «stack» horizontal still air to accumulate R-values; you must separate each later of
horizontal still air with another noncombustible material.
2.7 Minimum masonry opening, clearances to combustibles, and floor protector

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MINIMUM MASONRY
OPENING
J
23 1/2" (597 mm)
K
31 5/8" (803 mm)
L
16 1/4" (412 mm)
CLEARANCES
F
14” (356 mm)
G
8” (203 mm)
H
20 1/2 ” (521 mm)
I
25 1/2” (648 mm)*
FLOOR PROTECTOR
CANADA USA
B
18’’ (457 mm) – Note1 16’’ (406 mm) – Note 1
M
8’’ (203 mm) N/A (Canada only)
N
N/A (USA only) 8’’ (203 mm)
* For a 6" (152 mm) shelf. See Table SHELF POSITIONING (Section 2.5) for other shelf
dimensions.
Note 1: From door opening. The depth of a non-combustible shelf in from of the insert is
included in the calculation of the floor protector’s dimensions.
IMPORTANT: The masonry hearth should be at least 4 inches (102 mm) higher than the
combustible floor in front of it. If the hearth elevation is lower than 4 inches, the non-
combustible floor protector in front of the insert should have an R value equal or greater than
1.00.

15
2.8 Connector installation
A masonry flue connector may provide acceptable performance (Figure 2.8a); however, we
recommend the use of a chimney liner (rigid or flexible) to ensure satisfactory performance
(Figure 2.8b). To ensure an optimal draft, we also strongly recommend adding a minimum of
18” rigid liner between the roof flashing and the rain cap. Slip connectors for continuous liners
should also be installed. Use Listed Chimney Liners – UL1777, CAN/ULC-S635.
Figure 2.8a Figure 2.8b
ATTENTION INSTALLER: When positioning the unit in a fireplace opening prior to the flue
installation, install the insert into the opening until the top lip of air jacket is flush with fireplace
facing.
If lag-bolts and anchors are to be used to secure the insert, the whole locations should be
marked with the unit in place. Remove the insert and locate the anchors.

16
2.8.1 Chimney liner installation
To install of the chimney liner, the preferred methods are those found in Section 2.8.1.1. Use a
liner offset adapter (Section 2.8.1.2) only as a last resort.
2.8.1.1 If the chimney liner does align with the insert’s flue outlet, you have two options:
A) Install the chimney liner starter adapter, provided with the chimney liner. Follow the
chimney liner starter adapter manufacturer's instructions.
In order to connect the chimney liner starter adapter to the flue outlet, you can install the
brackets with the screws that are in the instruction manual kit.
Using a powered driver, secure the three brackets with the three screws provided 30131
on top of the insert in the three holes in front of the flue outlet. The long end of the
brackets must be attached to the insert. Insert the chimney liner into the flue collar of the
unit and secure the liner to the brackets with three self-tapping screws (not included).
B) You can get from your dealer a liner fixation system (AC02006), sold separately. Follow
the installation instructions provided with the liner fixation system.

17
2.8.1.2 If the chimney liner does not align with the insert’s flue outlet:
You can get a liner offset adapter (AC01370), sold separately. If you must install a liner
offset adapter, using a powered driver, secure the three brackets with the three screws
provided 30131 on top of the insert in the three holes in front of the flue outlet. The long
end of the brackets must be attached to the insert. The brackets and screws are in the
insert’s instruction manual kit. Then follow the instructions in the manual provided with the
liner offset adapter kit.
2.9 Faceplate installation
Remove the faceplate panels from their box and assemble according to these faceplate
instructions.
A. Remove the slide from within the air jacket.
B. Place the faceplate face down on a flat, nonabrasive surface (see Figure 2.9a) so that
the sides are a bit towards the middle.
Figure 2.9a

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C. Place the slide onto the faceplate so that the bends of the faceplate pieces go inside of
the slide.
2400 INSERT FACEPLATE BOLT ASSEMBLY:
Contents: 8 - 1/4" x 1" (6.25 mm x 25 mm) carriage bolts
8 - 1/4" (6.25 mm) flat washers
8 - 1/4" (6.25 mm) hex nuts
D. Line up the holes by pushing the sides out and install (smooth heads inside) all the bolts
loosely. Line up the edge of the faceplate top and side, tighten the two bolts joining
them, and then tighten the side bolts. Tighten the bolts on the other side in the same
manner (see Figure 2.9b).
Figure 2.9b
Installation on faceplates: Attach the mitered corners of the trim together using the corner
brackets. Slide the assembled trim over the edge of the faceplate. See Figures 2.9c & 2.9d.
Attach the left and right side to the top with corner brackets supplied. Slip the trim over the
faceplate and snap the eight trim retainers in place (see Figure 2.9c).
Figure 2.9c

19
Back view of faceplate
Figure 2.9d
Lift the insert into the fireplace. Square the insert to the face of the fireplace by adjusting the
leveling legs on the sides at the rear of the insert. Check that the throat connector is in line.
If there is space to push the connector down from above, do so. Reach in through the insert and
pull the throat connector down into place. If you are securing the connector to the flue collar with
the screw, do that now.
Push the air control (A) in, all the way. Slide the adjustable faceplate sleeve back into its original
location until the faceplate fits tightly against the fireplace facing. See Figure 8. One 7/16"
(11mm) open end wrench should be used to turn the nut (B), located above the cook top in the
centre, up so that it securely fastens the adjustable faceplate sleeve to the top air jacket. Take
the air control slider spring handle (C) from the firebox and turn it onto the 1/4" diameter (6mm)
air control rod (A).
A
C
B
D
Figure 2.9e
Lift the insert into the fireplace. Square the insert to the face of the fireplace by adjusting the
leveling legs on the sides at the rear of the insert. Check that the throat connector is in line.
If there is space to push the connector down from above, do so. Reach in through the insert
and pull the throat connector down into place. If you are securing the connector to the flue
collar with a screw, do that now.