Quadra-Fire MTVERNINSAE-MBK User manual

1 7036-188J October 3, 2017
MT VERNON PELLET INSERT
ADVANCED ENERGY (AE)
Model(s):
MTVERNINSAE-MBK
MTVERNINSAE-PMH
MTVERNINSAE-CSB
Installation Manual
Installation & Appliance Set-Up
INSTALLER: Leave this manual with party responsible for use and operation.
OWNER: Retain this manual for future reference.
NOTICE: DO NOT DISCARD THIS MANUAL
HOT SURFACES!
Glass and other surfaces are hot
during 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
replace.
• Alert children and adults to hazards of high temperatures
• High temperatures may ignite clothing or other
ammable materials.
• Keep clothing, furniture, draperies and other ammable
materials away.
WARNING
If the information in these instruc-
tions is not followed exactly, a
re may result causing property
damage, personal injury, or death.
• Do not store or use gasoline or other am-
mable vapors and liquids in the vicinity of
this or any other appliance.
• Do not over re - If appliance or chimney
connector glows, you are over ring. Over
ring will void your warranty.
• Comply with all minimum clearances to
combustibles as specied. Failure to
comply may cause house re.
WARNING
CAUTION
Tested and approved for wood pellets, shelled eld
corn, wheat and black oil sunower seeds. Burning of
any other type of fuel voids your warranty.
NOTE
To obtain a French translation of this manual, please contact
your dealer or visit www.quadrare.com
Pour obtenir une traduction française de ce manuel, s’il vous
plaît contacter votre revendeur ou visitez www.quadrare.com
CAUTION
Check building codes prior to installation.
• Installation MUST comply with local, regional, state and na-
tional codes and regulations.
• Consult local building, re ofcials or authorities having juris-
diction about restrictions, installation inspection, and permits.
Installation and service of this appliance should be performed by
qualified personnel. Hearth & Home Technologies recommends
HHT Factory Trained or NFI certified professionals.

2 7036-188J October 3, 2017
MT VERNON AE INSERT
TABLE OF CONTENTS
Safety Alert Key:
• DANGER! Indicates a hazardous situation which, if not avoided will result in death or serious injury.
• WARNING! Indicates a hazardous situation which, if not avoided may result in death or serious injury.
• CAUTION! Indicates a hazardous situation which, if not avoided, may result in minor or moderate injury.
• NOTICE: Indicates practices which may cause damage to the appliance or to property.
1 Important Safety Information............3
A. Appliance Certication ......................................................3
B. BTU & Efciency Specications........................................3
C. Glass Specications .........................................................3
D. Electrical Rating................................................................3
E. Mobile Home Approved .................................................... 3
2 Getting Started ...................................4
A . Design, Installation & Location Considerations ..........................4
B. Thermostat Wall Control Location......................................5
C. Tools And Supplies Needed..............................................5
D. Inspect Appliance and Components .................................5
E. Install Checklist..................................................................6
3 Dimensions and Clearances.............7
A. Appliance Dimensions ......................................................7
B. Clearances to Combustibles (UL and ULC).......................8
C. Minimum Opening for Masonry &
Zero Clearance Fireplaces.................................................9
D. Installation into a Factory-Built Fireplace...........................9
E. Installation into a Masonry Fireplace .................................11
F. Prefabricated Metal Chimney.............................................11
4 Vent Information...............................12
A. Venting Termination Minimum Requirements ...................12
B. Avoiding Smoke and Odors ...............................................13
C. Negative Pressure............................................................14
D. Draft.................................................................................. 14
E. Chimney and Exhaust Connection ...................................14
F. Equivalent Feet of Pipe ....................................................15
G. Pipe Selection Chart ........................................................15
5 Venting Systems ..............................16
A. Full Reline With Outside Air - Horizontal ...........................16
B. Full Reline With Outside Air - Vertical ...............................17
6 Appliance Set-Up .............................18
A. Leveling System ...............................................................18
B. Outside Air Kit Instructions ................................................18
C. Hearth Support .................................................................19
D. Removal of Cast Sides....................................................19
E. Surround and Trim Set - Cast...........................................20
F. Surround & Trim Set, Basic...............................................20
G. Optional Log Set Placement Instructions .........................21
H. Wall Control Thermostat Installation.................................21
7 Mobile Home Installation.................22
8 Accessory List .................................23
A 300 Watt Igniter comes installed
in a brand new Mt. Vernon AE and
are for use with pellet fuel only.
The 380 Watt Igniter is required for
burning multi-grain fuels and is included in the compo-
nent pack. Multi-fuels include, corn, sunower seeds,
and wheat.
CONFIDENTIAL PROPERTY OF HEARTH & HOME TECHNOLOGIES INC.
PART NAME:
DRAWN BY: SCALE: MATERIAL:
SHEET:
PART NUMBER: REV:
THIS PRINT IS CHECKED AND CONTROLLED BY THE ENGINEERING
DEPARTMENTS OF HEARTH & HOME TECHNOLOGIES INC.
ECO # DATE BY REV
UNLESS OTHERWISE SPECIFIED DIMS ARE INCHES[MM] & : TOLERANCES ARE: (2) PLACE DEC : ± 0.03 (3) PLACE DEC: ± 0.005 ANGLE: ± 2° FRACTION: ± 1/16
OUTSIDE MATERIAL. NORMAL DIM & INSIDE MATERIAL. OUTSIDE APEX INSIDE APEX - DIMS ENCLOSED BY AN OVAL ARE CRITICAL DIMENSIONS
REVISIONS
ITEM PART NUMBER PART NAME QTY
7034-280
MULTI-FUEL IGNITER
THIS IGNITER IS REQUIRED FOR
BURNING FUELS OTHER THAN
WOOD PELLETS.
THIS IGNITER CAN ALSO BE USED AS A
BACKUP FOR WOOD PELLETS.

October 3, 2017 7036-188J 3
MT VERNON AE INSERT
Model Mt. Vernon Pellet Insert AE
Laboratory OMNI Test Laboratories, Inc.
Report No. 061-S-69-6
Type Solid Fuel Room Appliance/Pellet Type
Insert
Standard ASTM E1509-04, ULC S628-93 and
ULC/ORD-C1482-M1990 Room Appli-
ance Pellet Fuel Burning type and (UM)
84-HUD, Mobile Home Approved.
FCC Complies with Part 15 of FCC Rules.
Operation is subject to the following
two conditions: (1) this device may not
cause harmful interference, and (2) this
device must accept any interference
received, including interference that may
cause undesired operation.
The Quadra-Fire Mt. Vernon AE Pellet Insert meets the U.S.
Environmental Protection Agency’s emission limits for pellet
inserts sold after May 15, 2015.
This pellet insert needs periodic inspection and repair for
proper operation. It is against federal regulations to operate
this pellet insert in a manner inconsistent with operating
instructions in this manual.
EPA Certication #: 970-14
EPA Certied Emissions: 1.7 grams per hour
*LHV Tested Efciency: 76.9 %
**HHV Tested Efciency: 71.2 %
***EPA BTU Output: 12,500 to 40,200 / hr.
****BTU Input: 16,800 to 53,300 / hr.
Vent Size: 3 or 4 inches, “L” or “PL”
Hopper Capacity: 52 lbs.
Fuel Wood Pellets
* Weighted average LHV efciency using data collected during
EPA emissions test.
**Weighted average HHV efciency using data collected during
EPA emissions test.
***A range of BTU outputs based on EPA Default Efciency and
the burn rates from the low and high EPA tests.
****Based on the maximum feed rate per hour multiplied by
approximately 8600 BTU’s which is the average BTU’s from a
pound of pellets.
B. BTU & Efciency Specications
1 Important Safety Information
• Installation and use of any damaged appliance.
• Modication of the appliance.
• Installation other than as instructed by Hearth & Home
Technologies.
• Installation and/or use of any component part not approved by
Hearth & Home Technologies.
• Operating appliance without fully assembling all components.
• Operating appliance without legs attached (if supplied with
appliance).
• Do NOT Over re - If appliance or chimney connector glows,
you are over ring.
Any such action that may cause a re hazard.
NOTE: Hearth & Home Technologies, manufacturer of
this appliance, reserves the right to alter its products, their
specications and/or price without notice.
Improper installation, adjustment, alteration, service or
maintenance can cause injury or property damage.
For assistance or additional information, consult a qualied
installer, service agency or your dealer.
Quadra-Fire is a registered trademark of Hearth & Home
Technologies.
WARNING
Fire Risk.
Hearth & Home Technologies disclaims any
responsibility for, and the warranty will be
voided by, the following actions:
C. Glass Specications
This appliance is equipped with 5mm ceramic glass.
Replace glass only with 5mm ceramic glass. Please con-
tact your dealer for replacement glass.
D. Electrical Rating
115 VAC, 60 Hz, Start 5 Amps, Run 1.25 Amps
E. Mobile Home Approved
• This appliance is approved for mobile home installa-
tions when not installed in a sleeping room and when
an outside combustion air inlet is provided.
• The structural integrity of the mobile home oor, ceil-
ing, and walls must be maintained.
• The appliance must be properly grounded to the
frame of the mobile home and use only Listed pellet
vent Class “L” or “PL” connector pipe.
• Outside Air Kit, part OAK-ACC must be installed in a
mobile home installation.
A. Appliance Certication
NOTICE: This installation must conform with local codes. In
the absence of local codes you must comply with the ASTM
E1509-04, ULC S628-93, (UM) 84-HUD and ULC/ORD-
C-1482-M1990.

4 7036-188J October 3, 2017
MT VERNON AE INSERT
Install Guide
2 Getting Started
Marginal Location:
• Below peak
Location NOT recommended:
• Not the highest point of the roof
• Wind loading possible
Multi-level Roofs
Windward
Leeward
Recommended:
Outside Air Intake
on windward side
NOT recommended:
Outside Air Intake
on leeward side
Recommended Location:
• Above peak
Recommended:
• Insulated exterior chase
in cooler climates
Recommended Location:
• Above peak
• Inside heated space
Location NOT recommended:
• Too close to tree
• Below adjacent structure
• Lower roof line
• Avoid outside wall
Marginal Location:
• Wind loading possible
Figure 4.1
A . Design, Installation & Location Considerations
1. Appliance Location
NOTICE: Check building codes prior to installation.
• Installation MUST comply with local, regional, state and
national codes and regulations.
• Consult insurance carrier, local building inspector, re
ofcials or authorities having jurisdiction over restrictions,
installation inspection and permits.
It is a good idea to plan your installation on paper, using exact
measurements for clearances and oor protection, before
actually beginning the installation. Location of the appliance
and chimney will affect performance.
Consideration must be given to:
• Safety, convenience, trafc ow
• Placement of the chimney and chimney connector and to
minimize the use of chimney offsets.
• Place the appliance where there will be a clear passage
for a Listed chimney through the ceiling and roof (vertical)
or through exterior wall (horizontal).
• Installing the required outside air kit will affect the location
of the vent termination.
When locating vent and venting termination, the ideal loca-
tion is to vent above roof line when possible. This minimizes
the affects of wind loading.
Since pellet exhaust can contain ash, soot or sparks, you
must consider the location of:
• Windows
• Air Intakes
• Air Conditioner
• Overhang, softs, porch roofs, adjacent walls
• Landscaping, vegetation
• Horizontal or vertical vent termination
2. Floor Support
The supporting oor under the appliance must be able to
handle the weight of the appliance, fuel load and the weight
of the chimney.
Ensure that your oor will support these weights prior to
installation. Add sufcient additional support to meet this
weight requirement prior to installation. The weight of the
appliance is 425 lbs.
WARNING
Risk of Fire
Damaged parts could impair safe operation. Do
NOT install damaged, incomplete or substitute
components.
CAUTION
If burning shelled eld corn, you must use approved vent-
ing specically designed for corn to prevent corrosion
or degradation. Follow the instructions from the venting
manufacturer.

October 3, 2017 7036-188J 5
MT VERNON AE INSERT
Hearth & Home Technologies disclaims any
responsibility for, and the warranty will be voided
by, the following actions:
• Installation & use of any damaged appliance.
• Modication of the appliance.
• Installation other than as instructed by Hearth & Home
Technologies.
• Installation and/or use of any component part not
approved by Hearth & Home Technologies.
• Operating appliance without fully assembling all
components.
• Operating appliance without legs attached (if supplied
with appliance).
• Do NOT Over re
Or any such action that may cause a re hazard.
WARNING
Reciprocating Saw Channel Locks
Hammer Phillips Screwdriver
Tape Measure Plumb Line
1/4” Self-Tapping Screws Framing Material
Hi-temp Caulking Material Gloves
Safety Glasses Framing Square
Electric Drill & Bits (1/4”) Level
May also need:
Vent Support Straps Venting Paint
Tools and building supplies normally required
for installation, unless installing into an existing
masonry replace:
C. Tools And Supplies Needed
B. Thermostat Wall Control Location
The thermostat wall control’s location will have some affect
on the appliance’s operation.
• Maximum wire length from appliance is 100 feet (30.48m)
continuous non-spliced wire. Recommended 20 gauge
wire, solid copper .
• When located close to the appliance, it may require a
slightly higher temperature setting to keep the rest of the
house comfortable.
• When located in an adjacent room or on a different oor
level, you will notice higher temperatures near the appli-
ance.
CAUTION
The wall control is an integral part of the appliance. No other
wall control or thermostat can be substituted.
D. Inspect Appliance and Components
• Open the appliance and remove all the parts and articles
packed inside the Component Pack. Inspect all the parts
and glass for shipping damage.
• Report to your dealer any parts damaged in shipment.
• All labels have been removed from the glass door.
• Plated surfaces have been wiped clean with a soft cloth,
if applicable.
• Read all the instructions before starting the installation.
Follow these instructions carefully during the
installation to ensure maximum safety and benet.
• Follow pipe manufacturer instructions for installation
and air clearance requirements.
WARNING
Risk of Fire
Damaged parts could impair safe operation.
Do NOT install damaged, incomplete or
substitute components.
A 300 Watt Igniter comes
installed in a brand new Mt.
Vernon AE and are for use
with pellet fuel only. The 380
Watt Igniter is required for burning multi-grain
fuels and is included in the component pack.
Multi-fuels include, corn, sunower seeds, and
wheat.
CONFIDENTIAL PROPERTY OF HEARTH & HOME TECHNOLOGIES INC.
PART NAME:
DRAWN BY: SCALE: MATERIAL:
SHEET:
PART NUMBER: REV:
THIS PRINT IS CHECKED AND CONTROLLED BY THE ENGINEERING
DEPARTMENTS OF HEARTH & HOME TECHNOLOGIES INC.
ECO # DATE BY REV
UNLESS OTHERWISE SPECIFIED DIMS ARE INCHES[MM] & : TOLERANCES ARE: (2) PLACE DEC : ± 0.03 (3) PLACE DEC: ± 0.005 ANGLE: ± 2° FRACTION: ± 1/16
OUTSIDE MATERIAL. NORMAL DIM & INSIDE MATERIAL. OUTSIDE APEX INSIDE APEX - DIMS ENCLOSED BY AN OVAL ARE CRITICAL DIMENSIONS
REVISIONS
ITEM PART NUMBER PART NAME QTY
7034-280
MULTI-FUEL IGNITER
THIS IGNITER IS REQUIRED FOR
BURNING FUELS OTHER THAN
WOOD PELLETS.
THIS IGNITER CAN ALSO BE USED AS A
BACKUP FOR WOOD PELLETS.

6 7036-188J October 3, 2017
MT VERNON AE INSERT
E. Install Checklist
Appliance Install
Appliance is leveled and connector is secured to appliance.
Hearth extension size/height decided.
Outside air kit installed.
Floor protection requirements have been met.
If appliance is connected to a masonry chimney, it should be cleaned and
inspected by a professional. If installed to a factory built metal chimney, the
chimney must be installed according to the manufacturer’s instructions and
clearances.
Chimney
Chimney installed, locked and secured in place with proper clearance.
Chimney meets recommended height requirements (14-16 feet).
Terminations installed and sealed.
Clearances
Combustible materials not installed in non-combustible areas.
Mantels and wall projections comply with installation manual requirements.
Protective hearth strips and hearth extension installed per manual requirements.
Appliance Setup
All packaging and protective materials removed.
All labels have been removed from the door.
All packaging materials are removed from inside/under the appliance.
Manual bag and all of its contents are removed from inside/under the appliance
and given to the party responsible for use and operation.
ATTENTION INSTALLER:
Follow this Standard Work Checklist
This standard work checklist is to be used by the installer in conjunction with, not instead of, the instructions contained in this installation manual.
Customer: __________________________________________________________________________
Date Installed: __________________________________________________________________________
Lot/Address: __________________________________________________________________________
Location of Appliance: ______________________________________________________________
Installer: __________________________________________________________________________
Dealer/ Distributor Phone #: ______________________________________________________________
Serial #: __________________________________________________________________________
Model : __________________________________________________________________________
WARNING! Risk of Fire or Explosion!
Hearth & Home Technologies recommends the following:
• That this checklist remain visible at all times on the appliance until the installation is complete.
Comments: Further description of the issues, who is responsible (Installer/Builder/Other Trades, etc.) and corrective action needed:
Comments communicated to party responsible by on
(Builder/Gen. Contractor) (Installer) (Date)
YES IF NO, WHY?

October 3, 2017 7036-188J 7
MT VERNON AE INSERT
Figure 7.2 - Front View with Cast Panel Set
Figure 7.1 - Top View with Cast Panel Set Figure 7.4 - Top View with Basic Surround Panel Set
Figure 7.5 - Front View with Basic Surround Set
36-5/8 [ 932]
15
[380]
13-1/8
[333]
12-7/8
[327]
32 [814]
23-7/8 [606]
3-5/8
[92]
3-5/8
[92]
23-7/8 [606]
32 [813]
13
[330]
15-1/8
[384]
13
[330]
36-3/4 [932]
45 [1143]
34-1/2
[876]
50
[1270]
33
[838]
29-3/4
[756] 23-7/8
[605]
11-3/4
[299]
26-7/8 [683]
17-1/4
[437]
11-7/8
[302]
26-7/8 [683]
29-3/4
[756]
17-1/4
[437]
23-7/8
[605]
Figure 7.3 - Side View with Cast Panel Set Figure 7.6 - Side View with Basic Surround Set
3 Dimensions and Clearances
A. Appliance Dimensions

8 7036-188J October 3, 2017
MT VERNON AE INSERT
NOTE:
• Illustrations reect typical installations and are FOR
DESIGN PURPOSES ONLY.
•Illustrations/diagrams are not drawn to scale.
•Actual installation may vary due to individual design
preference.
B. Clearances to Combustibles (UL and ULC)
Fire Risk.
Comply with all minimum clearances to combusti-
bles as specied.
WARNING
Failure to comply may cause house re.
Figure 8.1
Built-in Appliance - Framing Dimensions
26-7/8 in.
(683 mm)
22-1/2 in. - top vent*
(572 mm)
17-3/4 in. - rear vent*
(451 mm)
36 in.
(914 mm)
*If interior of chase will be drywalled, add
the thickness to this measurement.
Top vent depth dimension
assumes the use of the optional
TPVNT-4 vent adapter.

October 3, 2017 7036-188J 9
MT VERNON AE INSERT
C. Minimum Opening for Masonry & Zero
Clearance Fireplaces
Figure 9.3
Figure 9.1
FIREPLACE FRONT SURFACE
USA 15-1/8
CANADA 15-1/8 (537mm)
41-3/4
1060mm
12in max *
MANTEL
If employing a hearth extension, any parts or materials used in
construction must be non-combustible.
C
DA
B
SIDE TRIM
SIDE WALL
TOP TRIM
18-5/16
465mm
23-5/8
600mm
HEARTH
EXTENSION
16
(406mm)
29-3/4
1010mm
Figure 9.2
HEARTH EXTENSION
No thermal protection required
Ember protection only!
*If mantel depth is 10 inches or less, than the height from the
hearth to the bottom of the mantel is 39-3/4 inches.
Minimum Opening Dimensions Inches Millimeters
A Height 24-1/8 613
BFront Width (Steel Panel Set) 32-1/4 819
Front Width (Cast Panel Set) 32-1/4 819
CBack Width 24-1/8 613
DDepth (Steel Panel Set) 15-3/8 391
Depth (Cast Panel Set) 15-1/4 387
Note: Minimum opening dimensions include a
1/4” (6mm) clearance around unit.
Note: If trim measurement is over 3/4 in (19mm) in
depth use mantle or side clearances to combustibles.

10 7036-188J October 3, 2017
MT VERNON AE INSERT
Mark area of
floor to cut
Starter hole
D. Installation into a Factory-Built Fireplace
The following modications are permissible:
• Removal of damper or locked in open position
• Removal of smoke shelf or bafe
• Removal of ember catches
• Removal of re grate
• Removal of view screen/curtain
• Removal of doors
• Removal of factory-built replace oor
• External trim pieces which do not affect the operation of
the replace may be removed providing they can be stored
on or within the replace for reassembly if the insert is
removed.
• The permanent metal warning label provided must be
attached to the back of the replace, with screws or
nails, stating that the replace may have been altered to
accommodate the insert, and must be returned to original
condition for use as a conventional replace. Figure 10.1
Figure 10.2. Measure and mark the metal
oor for cutting. With a drill, make a starter
hole in each corner.
Figure 10.3. Using a saws-all, cut out the
oor.
250-2061
WARNING
THIS FIREPLACE MAY HAVE BEEN ALTERED
TO ACCOMMODATE AN INSERT. IT MUST BE
RETURNED TO ITS ORIGINAL CONDITION
BEFORE USE AS A SOLID FUEL BURNING
FIREPLACE. 250-2061
Heath & Home Technologies
250-2061
5.5 in. width x 2 in. height
NON. ANOD. ALUM BLACK LETTERS ON SILVER
with 1/8 in. holes on both sides.
Black letters
Figure 10.1
• If the hearth extension is lower than the replace opening,
the portion of the insert extending onto the hearth must be
supported.
The following is only one example as there are many differ-
ent models of factory-built replaces.
NOTE: This example is for reference only. Any modica-
tions must not compromise the structural integrity
or reduce the protection for combustible materials.
• Manufacturer designed adjustable support kit can be
ordered from your dealer.
NOTE: Refer to chimney liner manufacturer for recom-
mendations on supporting the liner. Installation into
replaces without a permit will void the listing.•
• The rebrick (refractory), glass doors, screen rails,
screen mesh and log grates can be removed from a fac-
tory-built rebox in order to gain minimum insert opening
requirements.
• Any smoke shelves, shields and bafes may be removed
from a factory-built rebox if attached with mechanical
fasteners.
• The metal oor of the factory-built rebox may be
removed to facilitate the installation of the insert only
when a 1 inch (25mm) airspace is provided between the
insert and the oor of outer wrap.
• Use of three inch or four inch stainless steel liner is
approved.

October 3, 2017 7036-188J 11
MT VERNON AE INSERT
Keep sharp edge of
metal floor away from
power cord
Leveling Leg
Figure 11.2. Place the insert into the facto-
ry-built rebox. Ensure that the power cord
can not be damaged by the sharp metal
edge. You may need to cut out a notch to
accommodate the cord.
Figure 11.1. Ensure that the leveling leg is
positioned over the support material before
leveling the insert. If using combustible
material for support a minimum 1” airspace
is required between the insert and the com-
bustible material.
NOTICE: In Canada when using a factory-built chim-
ney it must be safety listed, Type UL103 HT (2100
o
F)
[1149oC] CLASS “A” or conforming to CAN/ULC-
S629M, STANDARD FOR 650oC FACTORY-BUILT
CHIMNEYS.
F. Prefabricated Metal Chimney
The chimney can be new or existing, masonry or prefabricated
and must meet the following minimum requirements:
• Must be minimum 6 inch (152mm) inside diameter of
high temperature chimney listed to UL 103 HT (2100oF)
or ULC-S628.
•Must use components required by the manufacturer for
installation.
•Must maintain clearances required by the manufacturer
for installation.
•Refer to manufacturers instructions for installation
•This insert is listed to ASTM E 1509-12 Standard and
is approved for installation into listed factory-built zero
clearance replaces listed to UL 127 conforming to the
following specications and instructions:
•The original factory-built clearance replace chimney
cap must be re-installed after installing the approved
chimney liner meeting type UL 103 HT requirements
(2100°F) per UL 1777.
•If the chimney is not listed as meeting HT requirements,
or if the factory built replace was tested prior to 1998, a
full height listed chimney liner must be installed from the
appliance ue collar to the chimney top.
•The liner must be securely attached to the insert ue collar
and the chimney top.
•The air ow of the factory-built zero-clearance replace
system must not be altered. The ue liner top support
attachment must not reduce the air ow for the existing
air-cooled chimney system.
•No dilution air is allowed to enter the chimney.
1. Secure the replace damper in the open position. If
this cannot be accomplished, it will be necessary to
remove the damper
2. Seal damper area of chimney around chimney
connector with a high temperature sealant or seal
insert against the face of the replace.
3. Both methods must be removable and replaceable
for cleaning and re-installation.
• Removing oor of replace must not weaken structure
of rebox or reduce protection for combustible materials.
• Final approval of this installation type is contingent upon
the appropriate local authority having jurisdiction.
WARNING Risk of Fire!
Follow venting manufacturer’s clearances and
instructions when installing venting system.
WARNING
1”
Example Removal of Factory-Built Fireplace Cont.
E. Installation into a Masonry Fireplace
All modications that can be made to a Factory Built Fire-
place can be made to a Masonry Fireplace.
In addition DO NOT remove any brick or mortar from the
existing replace.

12 7036-188J October 3, 2017
MT VERNON AE INSERT
4 Vent Information
A. Venting Termination Minimum Requirements
J or K
X
V
M
I
H
A
V
G
B
V
V
A
B
V
FV
C
B
B
E
L
V
D
V
Electrical
Service
V
N
VN
V
N
N
V
Inside Corner
FIXED
CLOSED
OPEN
OPEN
FIXED
CLOSED
VX
G
G
Termination Cap Air Supply Inlet Gas Meter Restricted Area
O
P
Figure 12.1
A12 in. Above Finish Grade (the grade surface
must be a non-combustible material
B12 in.
48 in. no OAK
Open door or window: below or to the side
B12 in. Open door or window: above
C6 in. Permanently closed window: above, below
or to the side
D18 in.
36 in. no OAK
Vertical clearance to a ventilated soft
located above the terminal within a hori-
zontal distance of 2 ft from the center-line
of the terminal
E12 in. Clearance to unventilated soft
F12 in. Clearance to outside corner
G12 in. Clearance to inside corner
H36 in. Above gas meter/regulator measured from
horizontal center-line of regulator
I36 in. USA
72 in. Canada
Clearance to service regulator vent outlet
J12 in.
48 in. no OAK
Clearance to non-mechanical air supply
inlet to the building or the combustions air
inlet to any other appliance
K10 ft horizontal
3 ft vertical
Clearance to mechanical air supply
L7 ft. Above paved sidewalk, paved driveway
located on public property
M12 in. Under an open veranda, porch, deck or
balcony
NSee Note
below*
Electric service: above, below or to the
side (location must not obstruct or interfere
with access)
O24 in. Adjacent building, fences and protruding
parts of the structure
P12 in. Clearance above roof line for vertical
terminations
All minimum clearances are listed with an Outside Air Kit (OAK) installed, unless otherwise noted in table below.
24 in. Above grass, top of plants, wood or any other com-
bustible
12 in.
36 in. no OAK
Clearance from any forced air intake of other appli-
ance
12 in. Clearance horizontally from combustible wall
15 in. Vented directly through a wall, minimum length of
horizontal pipe
6 in. horizontal
12 in. vertical
Minimum horizontal or vertical terminations must
protrude from wall
*NOTE: Consult local building, re ofcials or authorities having jurisdic-
tion. Local codes or regulations may require different clearances.
NOTICE:
Do NOT Terminate Vent:
• In any location that will allow ue gases or soot from en-
tering or staining the building
• In any location which could create a nuisance or hazard
• In any enclosed or semi-enclosed area such as a carport,
garage, attic, crawl space, under a sun deck or porch,
narrow walkway
• Closely fenced area, or any location that can build up
a concentration of fumes such as a stairwell, covered
breezeway, etc.
NOTICE:
Termination must exhaust above air inlet elevation.
• It is recommended that at least 60 inches (1.52m) of vertical
pipe be installed when appliance is vented directly through a
wall. This will create a natural draft, which will help prevent
the possibility of smoke or odor venting into the home during
a power outage.
• It will also keep exhaust from causing a nuisance or hazard
by exposing people or shrubs to high temperatures.
• The safest and preferred venting method is to extend the vent
vertically through the roof or above the roof.

October 3, 2017 7036-188J 13
MT VERNON AE INSERT
B. Avoiding Smoke and Odors
Negative Pressure, Shut-Down and Electrical Power
Failure
To reduce the probability of back-drafting or burn-back in
the pellet appliance during power failure or shut down con-
ditions, it must be able to draft naturally without exhaust
blower operation.
Negative pressure in the house will resist this natural draft if
not accounted for in the pellet appliance installation.
Heat rises in the house and leaks out at upper levels. This
air must be replaced with cold air from outdoors which ows
into lower levels of the house.
Vents and chimneys into basements and lower levels of the
house can become the conduit for air supply and reverse
under these conditions.
Outside Air
An outside air kit is recommended in all installations. The
Outside Air Kit must be ordered separately.
Per national building codes, consideration must be given to
combustion air supply to all combustion appliances. Failure
to supply adequate combustion air for all appliance demands
may lead to back-drafting of those and other appliances.
When the appliance is roof vented (strongly recommended):
The air intake is best located on the exterior wall oriented
towards the prevailing wind direction during the heating
season.
When the appliance is side-wall vented:
The air intake is best located on the same exterior wall as
the exhaust vent outlet and located lower on the wall than
the exhaust vent outlet.
The outside air supply kit can supply most of the demands of
the pellet appliance, but consideration must be given to the
total house demand.
House demand may consume the air needed for the appli-
ance. It may be necessary to add additional ventilation to
the space in which the pellet appliance is located.
Consult with your local HVAC professional to determine the
ventilation demands for your house.
Vent Congurations
When installing a pellet appliance with a horizontal vent con-
guration the frequency of power outages should be consid-
ered:
• Power outages during operation will cause the appliance
to immediately turn off and may create conditions where
smoke will back draft into the house. In order to reduce
the likelihood of smoke back drafting into the house
during a power outage, Hearth and Home Technologies
strongly suggests:
• Installing the pellet venting with a minimum vertical
run of 5 feet (1.52m).
• Installing the outside air kit at least 4 feet (1.22m)
below the vent termination.
To prevent soot damage to exterior walls of the house and to
prevent re-entry of soot or ash into the house:
• Maintain specied clearances to windows, doors and
air inlets, including air conditioners.
• Vents should not be placed below ventilated softs.
Run the vent above the roof.
• Avoid venting into alcove locations.
• Vents should not terminate under overhangs, decks or
onto covered porches.
• Maintain minimum clearance of 12 inches (305mm)
from the vent termination to the exterior wall. If you
see deposits developing on the wall, you may need to
extend this distance to accommodate your installation
conditions.
CAUTION
• DO NOT CONNECT THIS APPLIANCE TO A CHIMNEY
FLUE SERVICING ANOTHER APPLIANCE.
• DO NOT CONNECT TO ANY AIR DISTRIBUTION DUCT
OR SYSTEM.
Optional Battery Back-Up
Hearth & Home Technologies supplies an optional battery
back-up system that operates the appliance during power
failure conditions to prevent smoking. In shutdown mode,
the battery back-up will not prevent smoking.
Hearth & Home Technologies assumes no responsibility for,
nor does the warranty extend to, smoke damage caused
by reverse drafting of pellet appliances under shut down or
power failure conditions.

14 7036-188J October 3, 2017
MT VERNON AE INSERT
C. Negative Pressure
Negative pressure results from the imbalance of air avail-
able for the appliance to operate properly. It can be strongest
in lower levels of the house.
Causes include:
• Exhaust fans (kitchen, bath, etc.)
• Range hoods
• Combustion air requirements for furnaces, water
appliances and other combustion appliances
• Clothes dryers
• Location of return-air vents to furnace or air conditioning
• Imbalances of the HVAC air handling system
• Upper level air leaks such as:
- Recessed lighting
- Attic hatch
- Duct leaks
To minimize the effects of negative air pressure:
• Install the outside air kit with the intake facing prevailing
winds during the heating season
• Ensure adequate outdoor air for all combustion appliances
and exhaust equipment
• Ensure furnace and air conditioning return vents are not
located in the immediate vicinity of the appliance
• Avoid installing the appliance near doors, walkways or
small isolated spaces
• Recessed lighting should be a “sealed can” design
• Attic hatches weather stripped or sealed
• Attic mounted duct work and air handler joints and seams
taped or sealed
D. Draft
Draft is the pressure difference needed to vent an appli-
ance successfully. When an appliance is drafting suc-
cessfully, all combustion byproducts are exiting the home
through the chimney.
Install through the warm airspace enclosed by the build-
ing envelope. This helps to produce more draft, especially
during lighting and die-down of the re.
Considerations for successful draft include:
• Preventing negative pressure
• Location of appliance and chimney
NOTICE
HEARTH & Home Technologies assumes no responsibility
for the improper performance of the chimney system caused
by:
• Inadequate draft due to environmental conditions
• Down drafts
• Tight sealing construction of the structure
• Mechanical exhausting devices
E. Chimney and Exhaust Connection
1. Chimney & Connector: Use 3 or 4 inch (76-102mm)
diameter type “L” or “PL” venting system. It can be vented
vertically or horizontally.
2. Mobile Home: Approved for all Listed pellet vent. If using
the 3 inch (76mm) vertical Top Vent Adapter Kit or the 3
to 6 inch (76-152mm) Top Vent Offset Adapter, use Listed
double wall ue connector. A Quadra-Fire Outside Air Kit
must be used with manufactured home installations.
3. Residential: The 3 inch (76mm) vertical Top Vent Adapter
Kit and the 3 to 6 inch (76-152mm) Top Vent Offset Adapter
are tested to use 24 gauge single wall ue connector or
Listed double wall ue connector to Class A Listed metal
chimneys, or masonry chimneys meeting International
Residential Code standards for solid fuel appliances.
4. INSTALL VENT AT CLEARANCES SPECIFIED BY THE
VENT MANUFACTURER.
5. Secure exhaust venting system to the appliance with at
least 3 screws. Also secure all connector pipe joints with
at least 3 screws through each joint.
6. DO NOT INSTALL A FLUE DAMPER IN THE EXHAUST
VENTING SYSTEM OF THIS Appliance.
7. DO NOT CONNECT THIS Appliance TO A CHIMNEY FLUE
SERVING ANOTHER APPLIANCE.
NOTE: All pipe must be welded seam pipe whenever pos-
sible. Seal pipe joints with high temperature silicone (500°F
[260°C] minimum rated only).
NOTE: If burning shelled eld corn, you must use approved
venting specically designed for corn. Follow the instructions
from the venting manufacturer.
WARNING
Risk of Asphyxiation!
Negative pressure can cause spillage of combustion fumes
and soot.

October 3, 2017 7036-188J 15
MT VERNON AE INSERT
F. Equivalent Feet of Pipe
The table below can help you calculate the equivalent feet
of pipe which is a method used to determine pellet vent size.
Figure 15.1.
2 ft.
2 ft.
3 ft.
2 ft.
Example of 3 Elbow-Rear Vent Termination Calculation
Pellet Venting
Component
# of
Elbows
Feet of
Pipe
Multiplied
By
Equivalent
Feet
Components
Equivalent Feet
90oElbow or Tee 3 X 515
45oElbow X3
Horizontal Pipe 7 X 17
Vertical Pipe 2 X 0.5 1
Total Equivalent Feet 23
Note: This is a generic example and is not
intended to represent any specic fuel type.
Vent surfaces get HOT, can cause burns if
touched. Non-combustible shielding or guards
may be required.
WARNING
Figure 15.2
3 in. or 4 in. (76mm or 102mm) Diameter Pipe
Equivalent Pipe
Length In Feet
ALTITUDE IN THOUSANDS OF FEET
0
20
30
1 2 3 4 5 6 7 8 9 10
4 in. (102mm) Diameter Pipe Only
10
Example 1
Example 2
Example 1: If the equivalent length of pipe is 23 feet (7m) with
altitude of 8,000 feet (2438m) you must use 4 inch (102mm)
diameter type “L” or “PL” vent.
Example 2: If the equivalent length of pipe is 12 feet (3.7m)
with altitude of 6,000 feet (1829m) you may use 3 or 4 inch
(76 to 102mm) diameter type “L” or “PL” vent.
G. Pipe Selection Chart
The chart will help you in determining proper venting size
according to the equivalent feet of pipe calculated previously
and the altitude above sea level of this installation.
Figure 15.2
a. Locate the calculated equivalent feet of pipe on the vertical
left side of the chart.
b. Move to the right horizontally on the chart until you reach
your altitude above sea level.
c. If you fall below the diagonal line, 3 or 4 inch (76 to 102mm)
pipe may be used.
d. If it is anywhere above the diagonal line, a 4 inch (102mm)
diameter pipe is required.
NOTICE:
• A 90° elbow is 5 times as restrictive to the ow of exhaust
gases under positive pressure as 1 foot (305mm) of hori-
zontal pipe.
• A foot of horizontal pipe is twice as restrictive as a foot of
vertical pipe.
Figure 15.1
WARNING
RISK OF INJURY OR PROPERTY DAMAGE!
• Improper installation, adjustment, alteration, service or main-
tenance can cause injury or property damage.
• Refer to the owner’s information manual provided with this
appliance.
• For assistance or additional information consult a qualied
installer, service agency or your dealer.
Fire Risk.
• Only LISTED venting components may be used.
• NO OTHER vent components may be used.
• Substitute or damaged vent components may impair safe
operation.
WARNING

16 7036-188J October 3, 2017
MT VERNON AE INSERT
5 Venting Systems
NOTE:
In Canada, where passage through a wall or partition of com-
bustible construction is desired, the installation shall conform
to CAN/CSA-B365.
Figure 16.1
Fire Risk.
Inspection of Chimney:
• Masonry chimney must be in good condition.
• Meets minimum standard of NFPA 211
• Factory-built chimney must be a minimum 6 inch
(152mm) UL103 HT.
WARNING
CAUTION
Never draw outside combustion air from:
• Wall, oor or ceiling cavity
• Enclosed space such as an attic or garage
NOTE:
• Illustrations reect typical installations and are FOR
DESIGN PURPOSES ONLY.
•Illustrations/diagrams are not drawn to scale.
•Actual installation may vary due to individual design
preference.
A. Full Reline With Outside Air - Horizontal
Outside Air through Rear
Wall (Horizontal)
NOTE; Use metal plate around
exhaust vent pipe and seal all
edges with non-flammable insu-
lation such as fiberglass, mineral
wool or ceramic.
Do not use high temperature
caulking materials to seal any
edge to prevent furture service-
ability.

October 3, 2017 7036-188J 17
MT VERNON AE INSERT
NOTE: Check clearances carefully for this type of instal-
lation to ensure adequate room for outside air venting.
Check building codes prior to installation.
• Installation MUST comply with local, regional, state and
national codes and regulations.
• Consult local building, re ofcials or authorities having juris-
diction about restrictions, installation inspection, and permits.
CAUTION
NOTE: In Canada only a full reline is allowed per ULC
S628, ORD ULC C1482-M1990.
B. Full Reline With Outside Air - Vertical
Figure 17.1
Outside Air
Termination
at
Chimney Top
(Vertical)
305mm min.
below
305mm min.
above
NOTE; Use metal plate around
exhaust vent pipe and seal all
edges with non-flammable insula-
tion such as fiberglass, mineral
wool or ceramic.
Do not use high temperature caulk-
ing materials to seal any edge to
prevent furture serviceability.
NOTE: In Canada this replace insert must be installed
with a continuous chimney liner extending from the replace
insert to the top of the chimney. The chimney liner must
conform to the Class 3 requirements of CAN/ULC-S635,
Standard for Lining Systems for Existing Masonry or Facto-
ry-Built Chimneys and Vents, or CAN/ULC-S640, Standard
for Lining Systems for New Masonry Chimneys.

18 7036-188J October 3, 2017
MT VERNON AE INSERT
6 Appliance Set-Up
A. Leveling System B. Outside Air Kit Instructions
Included in Kit: 2 wire ties, 1 collar assembly,
1 termination cap assembly, 1 trim ring, fasteners.
NOTE: 3 INCH (76mm) ALUMINUM FLEX PIPE NOT
INCLUDED.
Tools Needed: Phillips head screw driver; wire cutters;
hole saw or jig saw.
1. Measure distance from oor to air vent opening in appli-
ance and mark location on wall.
2. Use saw to cut opening in wall. Cut a 3-1/2 to 4 inch
(89-102mm) opening on inside wall and a 4 to 4-1/2 inch
(102-114mm) opening on outside of house.
3. Use wire ties to secure ex pipe to collar assembly.
4. Slide trim ring over ex pipe and run pipe through wall.
5. Attach ex pipe (not included) to outside termination cap
with second wire tie.
6. Secure termination cap to outside surface.
7. Secure trim ring to interior wall.
CAUTION
Never draw outside combustion air from:
• Wall, oor or ceiling cavity
• Enclosed space such as an attic or garage
The leveling bolts are located on the sides of the appliance,
front and rear. To access the bolts, remove the front access
panels. Reach in and turn the bolt to the desired height to
level the appliance.
Figure 18.1
Collar
Wire Ties
Trim Ring
Termination Cap
3 inch Aluminum Flex
Pipe (not included)
Figure 18.2
Leveling Bolts - 2 on each side

October 3, 2017 7036-188J 19
MT VERNON AE INSERT
C. Hearth Support
Figure 19.1
Figure 19.4 - Shown with Cast Panel Set
Basic
Cast
Attach Trim to Base
from underneath
Attach Trim to Insert from
inside Insert.
Install Front Trim Last,
Corner Overlap Side
Trim Pieces
5 in
3 in
5 inch
high Set
3 inch
high Set
Location of Latch
for Removing
Cast Sides
Lower the leveling
bolts if necessary to
keep the insert level
when installing the
Hearth Support.
D. Removal of Cast Sides
You will need to remove the cast sides in order to install
the panel and trim set.
1. There is a latch on the back side of the cast side in the
middle of the top opening of the cast side as indicated
in Figure 19.4.
2. Place your ngers inside the opening and squeeze
the latch. The side can now be pulled toward you and
removed. Place on a protective surface so as not to
damage the nish.
3. To replace the side, set the bottom in rst. Squeeze
the latch in an open position. Place the cast side into
position and then release the latch. The latch hooks
onto a bracket to hold the side in place.
Bend tabs down. Shipped
flat from the factory.
Figure 19.2
9 attachment holes - 3 on
each side and 3 in the front
Figure 19.3
Included in Kit: (1) bottom, (1) trim front, (2) trim sides, (2)
trim extensions
Tools Needed: Phillips head screw driver, measuring tape,
gloves
1. Remove contents from box and lay on protective surface
to avoid scratching the paint.
2. Lay front and sides face down. Bend the tabs down toward
the inside. Figure 19.1.
3. The side pieces are shipped at. It is must easier to ex the
sides into a bowed position before installing.
4. Lay the cast bottom face up. Attach the 2 sides FIRST and
then the front piece. Figure 19.2.
5. Turn the cast bottom right side up and attach the panel
extensions. Note the alignment hole.
6. Attach the appropriate footers depending on the panels &
trim set you are installing. The footers come in 2 sizes, 3
and 5 inches. Discard the footers not used.
7. Place the assembled hearth support under the insert.
Lower the leveling bolts if necessary to keep the insert
level.
8. Open the door and attach the hearth support to the insert.
There are 9 attachment holes. Figure 19.3.

20 7036-188J October 3, 2017
MT VERNON AE INSERT
E. Surround and Trim Set - Cast
Figure 20.5
Figure 20.1
Figure 20.4
Figure 20.2- Completed View
F. Surround & Trim Set, Basic
Back of Top Surround
Back of Side Surround
Screws
Included in Surround & Trim Kit: (2) corner brackets and set
screws; (1) trim set, 3 piece; (2) side panels; (1) top panel;
(4) screws.
Tools Needed: Powered Phillips head screw driver
1. Secure the top panel to the surround sides with the
screws provided. Figure 20.3
2. Assemble the trim with the (2) corner brackets provided.
Figure 20.4
3. Remove the 2 cast sides and slide the assembled trim
over the assembled surround set. Figure 20.5
4. Carefully slide surround and trim over the top of the insert
into place matching the mounting holes on the panel with
the mounting holes on the insert. Secure with screws
provided. Figure 20.5
Figure 20.3
Shown with Trim Installed on Surround Set
1. Screw panels
together
2. Bend tabs down
1. Screw panels
together
3. Install Cast Trim Header
2. Bend tab
s
down
Included in Surround Kit: (2) side panels, left and right;
(1) panel top; (1) fastener package.
Included in Cast Trim Kit: (2) cast trim legs, left and right;
(1) cast trim header; (2) cast trim footers, left and right; (1)
fastener package.
Tools Needed: Powered Phillips head screw driver
1. Remove contents from box being careful not to scratch or
damage the cast trim pieces.
2. Lay the surround set face down on protective covering to
prevent scratching the painted surface.
3. Secure the surround legs to top panel with the screws
provided.
4. Now bend the tabs down toward the backside of the panel
set, 5 on top and 2 on each leg. Leave the panel set face
down. Figure 20.1
5. Place the corresponding cast trim pieces ( 2 cast trim legs
and 1 cast trim header) underneath the panel set, also face
down.
6. Place washer provided over tab and secure the trim and
panel together with screw. Continue for all tabs.
7. Secure cast footers with screws.
8. Remove both left and right cast sides from insert. Figure
20.5
9. Carefully slide surround and trim over the top of the
insert into place matching the mounting holes on the
panel with the mounting holes on the insert. Secure with
screws provided. Figure 20.5.