BuckMaster 74NC Manual

FIREPLACE INSERT & FREESTANDING
MODEL 74
NON-CATALYTIC UNIT
FEATURES
PREPARATIONS INSTALLATION
OPERATION MAINTENANCE SAFETY
Buck Stove
SAFETY NOTICE
IF THIS HEATER IS NOT PROPERLY INSTALLED, A HOUSE FIRE MAY
RESULT. FOR YOUR SAFETY, FOLLOW THE INSTALLATION INSTRUCTIONS.
CONTACT THE AUTHORITY HAVING JURISDICTION (SUCH AS MUNICIPAL
BUILDING DEPARTMENT, FIRE DEPARTMENT, FIRE PREVENTION
BUREAU, etc.) CONSULT BEFORE INSTALLATION TO DETERMINE THE NEED
TO OBTAIN A PERMIT. KEEP THESE INSTRUCTIONS FOR FUTURE USE.
TESTED AND LISTED BY: PFS/TECO, COTTAGE GROVE, WI
MANUFACTURED BY NEW BUCK CORPORATION
200 ETHAN ALLEN DRIVE
P.O. BOX 69
SPRUCE PINE, N.C. 28777
www.buckstove.com (828)-765-6144
Revised July 2020

TABLE OF CONTENTS
Important Instructions .................................................................................................................................................2
Stove Identification .....................................................................................................................................................3
SECTION I: Introduction............................................................................................................................................4
Type of wood and loading procedures ........................................................................................................................4
Chimney Heights ........................................................................................................................................................5
SECTION II: Masonry Insert Installation ...................................................................................................................6
Installation Preparation-Fireplace ...............................................................................................................................7
Mounting Trim Panels ................................................................................................................................................9
SECTION III: Pre-Fab Insert Installation .................................................................................................................12
SECTION IV: Residential Freestanding Installation ................................................................................................13
Floor Protection ........................................................................................................................................................14
Ceiling Exit Using Single Wall Pipe.........................................................................................................................15
Wall Exit to Metal Tee-Box .....................................................................................................................................16
Wall Exit Masonry Flue Using Single Wall Pipe......................................................................................................17
Ceiling Exit-Close Clearance....................................................................................................................................18
Clearances To Combustibles Freestanding Without Close Clearance
Shields and Using Single Wall Pipe..........................................................................................................................20
Residential / Permanently Located Manufactured Home Double Wall or Shielded Single Wall
Connector With Close Clearance Shields .................................................................................................................21
Residential / Permanently Located Manufactured Home Double Wall or Shielded Single Wall
Connector Without Close Clearance Shields ............................................................................................................22
Installation of Close Clearance Shields (Optional) ...................................................................................................23
Alcove Installation Double or Shielded Single Wall Connector With Close
Clearance Shields......................................................................................................................................................24
SECTION V: Freestanding Permanently Located Manufactured Home Installation................................................25
Out Side Air Installation ..................................................................................................................................... 26-27
SECTION VI: Wood Heater Safety ..........................................................................................................................31
SECTION VII: Operation .........................................................................................................................................32
Guide To The Different Burning Qualities of Wood ................................................................................................33
SECTION IV Maintenance:
Door Gasket Replacement.........................................................................................................................................34
Brick Layout .............................................................................................................................................................35
Secondary Air Tubes Replacement ...........................................................................................................................36
Secondary Air Tubes Identification Diagram and Tube location..............................................................................37
Optional Motor Installation................................................................................................................................. 38-39
Check Chimney.........................................................................................................................................................40
Cleaning Heater / Care of Glass................................................................................................................................41
Troubleshooting .................................................................................................................................................. 42-43
Replacement Parts.....................................................................................................................................................44
Warranty ...................................................................................................................................................................45

Page 2
INSTALLATION, OPERATION AND
MAINTENANCE INSTRUCTIONS
MODEL 74NC
BEFORE INSTALLING YOUR NEW BUCK STOVE,
READ THE ENTIRE INSTRUCTION MANUAL
IMPORTANT INSTRUCTIONS
• The New Buck Corp. non-catalytic Model 74NC non-catalytic systems have been tested to UL
1482 Standards and certified by PFS/TECO. Standard for Room Heaters, Solid Fuel Type.
• Install and operate your unit according to instructions provided in this manual. Local building codes
may apply; therefore, contact your local building inspector or fire marshal for necessary installation
requirements and permits which may go beyond these instructions. Contact your insurance
company for coverage and installation inspection.
• If appliance is installed in permanently located manufactured homes:
DO NOT INSTALL IN SLEEPING ROOMS.
• NOTE: When burning any unit or appliance that combusts fuel for heat, such as coal, oil,
wood or natural and (L.P.) liquid petroleum gas. Correctly place monitors in those areas that
are expected to produce CO. Consult with your local fire safety officials to learn more
• Examine the masonry fireplace and chimney prior to installation of fireplace accessory to
determine that construction meets the minimum fireplace construction requirements illustrated in
the instructions. Make sure that it is free from cracks, loose mortar, creosote deposits and other
blockage, or other signs of deterioration.
WARNING
THIS UNIT GENERATES HIGH HEAT, SO TREAT IT WITH CARE. HOT WHILE IN
OPERATION . KEEP CHILDREN, CLOTHING AND FURNITURE AWAY. CONTACT MAY
CAUSE SKIN BURNS. DO NOT USE CHEMICALS OR FLUIDS TO START THE FIRE. DO NOT
BURN GARBAGE OR FLAMMABLE FLUIDS. DO NOT CONNECT TO ANY DISTRIBUTION
DUCT OR SYSTEM. READ ALL INSTRUCTIONS BEFORE INSTALLING AND USING THE
APPLIANCE. FAILURE TO FOLLOW INSTRUCTIONS MAY RESULT IN PROPERTY
DAMAGE, BODILY INJURY OR EVEN DEATH. AVE THESE INSTRUCTIONS FOR FUTURE
REFERENCES.
CAUTION
DO NOT USE MORE THAN ONE STOVE PER CHIMNEY. DO NOT USE A FLUE INTENDED
FOR A GAS APPLIANCE. DO NOT CONNECT TO ANY DISTRIBUTION DUCT OR SYSTEM.

Page 3
1. 6" Flue Exit
2. Warm Air Outlets
3. Air Wash and Screen
4. Secondary Air Tubes
5. Top Baffle Board
6. Fire Blanket
7. Hinge Block
8. Hinge Pins
9. Door
10. Door Glass
11. Glass Clips Small; Side, Top, Bottom
12. Door Gasket
13. Door Glass Gasket
14. Door Handle
15. Spring Handle
16. -Door Latch
-Door Latch Screw
-Door Handle Bushing
-Door Handle Spacer
-Door Latch Flat Washer
-Door Latch Screws (Phillips Head)
-Door Latch Screws (Allan Head)
17. Firebrick
18. Hearth Extension
19. Cover Door
20. Primary Air Control
21. Shotgun Air Box
13
13
2
10
2
16
4
14
15
21
19
20
17
12
11
7
8
18
5
EPA COMPLIANCE STATUS
This manual describes installation and operation of the New Buck Corporation Model 74 wood heater. This
heater meets the U.S. Environmental Protection Agency’s Emission limits for wood heaters and is in
compliance with 2020 particulate emission standard. Under specific test conditions, this heater has been
shown to deliver heat at rates ranging from approximately 13,300 to 52,400 BTU/hr for the Model 74.
A weighted average was used to calculate the overall efficiency across all of the burn rate categories using the
higher heating value (HHV73%).
MODEL 74 WOOD STOVE IDENTIFICATION
9
6

Page 4
CAUTION
YOUR CHIMNEY MUST BE CORRECTLY SIZED. A CHIMNEY THAT IS TOO SMALL
OR LARGE IN DIAMETER, OR TOO SHORT, CAN CAUSE YOUR STOVE TO SPILL
SMOKE WHEN DOOR IS OPENED.
SECTION I
INTRODUCTION
Your new MODEL 74 is a non-catalytic unit designed to meet the most stringent emissions
standards without use of a catalytic combustor. This effect is achieved through use of
secondary air which is mixed with primary air in unit’s firebox.
For peak performance, we suggest use of natural seasoned hard wood, loading wood from front
to rear.
NOTE: Soft woods such as pine, create more creosote, clogging of chimney and produce a less efficient
burn performance.
You should not burn trash or garbage, artificial or paper logs, gift wrapping, treated or painted
wood or any type of coal or flammable fluids.
DO NOT USE CHEMICALS OR FLUIDS TO START THE FIRE.
DO NOT BURN GARBAGE OR FLAMMABLE FLUIDS.”
The primary air, which is controlled by user, burns wood. Secondary air is admitted into firebox
through secondary air tubes at top of firebox. This secondary air burns impurities in smoke
released from initial wood burning. The temperature necessary for this combustion is
maintained through firebrick refractory. If any more technical information is necessary, contact
your local dealer.
Under specific test conditions this heater has been shown to deliver heat at rates ranging from
approximately 13,300 to 52,400 BTU/HR.
This unit may also be used with optional room air blower. To order optional motor assembly
you must specify stove model number and give following part number:
*Model 74: Motor Assembly—MA 5126715
For operation and use of this electrical assembly, see instructions provided with motor assembly
kit.

Page 5
Stack wood in criss-cross
pattern under a shelter to allow
air flow to dry wood and to keep
wood from rain. Green wood
may have 50-60% moisture
content. Wood seasoned outside
uncovered may have 40%
moisture content. Wood
properly seasoned in a covered
environment will have less than
20% moisture content.
3 FT.
2 FT.
LESS THAN
10 FT.
2 FT.
10 FT.
GREATER
THAN
10 FT.
3 FT.
METAL
CHIMNEY
MASONRY
CHIMNEY
2 FT. MINIMUM HEIGHT ABOVE THE
ROOF WITHIN 10 FT. HORIZONTALLY
CHIMNEY “10 FT.” RULE (MINIMUM HEIGHTS)
NOTE: MINIMUM CHIMNEY HEIGHT 15 FT.
CHIMNEY HEIGHTS
HOW TO STACK WOOD

Page 6
SECTION II
MASONRY INSERT INSTALLATION
The Model 74 may be installed using an all masonry fireplace built in accordance with
Uniform Building Code and National Fire Protection Association (NFPA). The first step in
this type of installation is to determine acceptability of fireplace and chimney for use with a
woodstove. Both construction and condition of fireplace are important considerations when
installing a woodstove. The chimney should extend at least 3' above roof and at least 2' above
any point of roof within 10' (See Page 5).
CAUTION
REMEMBER TO HAVE YOUR CHIMNEY INSPECTED FOR LEAKS AND BLOCKAGE
BEFORE YOU INSTALL YOUR STOVE. DO NOT CONNECT THIS UNIT TO A
CHIMNEY FLUE SERVING ANOTHER APPLIANCE.
MINIMUM CLEARANCE MASONRY INSERT
A. Side Wall Combustible
B. Front Floor Protector
C. Side Floor Protector
D. Side Wood Trim
E. Top Wood Trim
F. Mantel or Brackets
16"
20"
8"
10"
10"
24"
MODEL 74
1. The hearth must be of masonry construction and must extend a minimum of 20" in front of
firebox opening and aminimum of 8" to either side of firebox opening.
2. If there is not minimum hearth protection from front of firebox opening and front of ma-
sonry hearth, a floor protector must be used in front of hearth to protect combustible
materials. The floor protector must be 3/8" minimum thickness noncombustible material or
equivalent.(See Page 14).
F
B
A
E
C
D
F
B
A
E
C
D

Page 7
POSSIBLE TOOLS NEEDED FOR INSTALLATION
If you decide to install your own stove, there are several hand tools you may need to do the job.
If you do not already have them, they are readily available at most hardware stores.
Caulking gun
Large adjustable wrench (may not be needed)
Drop cloths or newspapers
Vacuum cleaner or whisk broom
Flashlight
1 tube of RTV silicone, Code 103 or 106, or high temperature rubber cement rated between
450o F- 600o F
7/32" drill bit and drill
Socket/Ratchet Set
INSTALLATION PREPARATION
Fireplace:
1. Relocate furniture and other materials away from front of fireplace to allow free access to
fireplace.
2. Cover hearth and adjacent floor areas with a drop cloths to protect from soiling or marring
surface.
3. Remove existing fireplace damper plate.
4. Thoroughly clean fireplace of ashes and soot.
5. Check chimney and smoke chamber for excessive buildup of creosote or soot. Also, check
for obstructions, such as bird’s nests. If chimney is excessively dirty, clean it or have
someone clean it professionally before installing or using room heater.
6. If fireplace has an ash dump or outside air provision, these must be sealed off with metal or
tightly packed non-combustible insulation to prevent cold air from entering fireplace
chamber.
MASONRY INSERT INSTALLATION
INSTALLATION OPTIONS
This unit (appliance) may be installed into an all masonry fireplace, built in accordance with
Uniform Building Code and National Fire Protection Association (NFPA 211).
NOTE: Check with local building officials for any permits required for installation of this unit
and notify your insurance company before proceeding with installation
In cases such as improperly drawing fireplace, oversize flue liners are to meet codes in
certain areas as it is recommended that one of the flowing procedures be followed.
A. A Chimney Connector can be installed from appliance flue exit through damper and
with air-tight face seal. (See option (A) Page 8).
B. A listed Direct Connect can be installed from appliance flue exit through damper into
the first section of flue liner with air-tight seal. (See option (B) Page 8).
C. A Positive Connect can be installed from appliance flue exit, continuing up through
entire chimney and exiting at top of the chimney. (See option (C) Page 8).

Page 8
OPTION (B)
REMOVE
DAMPER
OR WIRE IT
OPEN
AIRTIGHT
INSULATED
CLEAN-
BLOCK-OFF PLATE
OR DAMPER ADAPT-
ER
SEAL TRIM PANELS
WITH INSULATION
OR HIGH
TEMPERATURE
CAULK
STAINLESS
STEEL
CHIMNEY
CONNECT-
OR MUST
EXTEND 1’
PAST THE
BLOCK-OFF
PLATE OR
TO THE
FLUE LINER
NOTE: Follow installation instruction
with Direct Connection Kit.
(Kit sold separately)
SAFETY NOTICE
If this appliance is not properly installed, a house fire may result. For your safety, follow the installation directions.
Contact local building or fire officials about restrictions and installation inspection requirements in your area.
STARTER PIPE
SEAL TRIM PANELS AND UNDER
FRONT OF STOVE UNIT WITH
INSULATION OR HIGH
TEMPERATURE CAULK
OPTION (A)
REMOVE
DAMPER
OR WIRE
IT OPEN
AIRTIGHT INSU-
LATED CLEAN-
OUT
NOTE: New Buck Corporation grants no warranty,
implied or stated, for the installation or mainte-
nance of your appliance, and assumes no responsi-
bility of any consequential damage (s).
OPTION (C)
NOTE: Follow installation
instruction with Positive
Connection Kit.
(Kit sold separately)
TRIM PANELS
CAP (PREVENTS
WATER FROM
ENTERING)
FLUE
LINER
THE LINER MUST
BE STAINLESS
STEEL CONNECT-
OR OR FLEXIBLE
VENT. FOLLOW
THE LINER MANU-
FACTURE’S IN-
STRUCTIONS FOR
INSTALLATION
AND SUPPORT.
AIRTIGHT
INSULATED
CLEAN-OUT
REMOVE
DAMPER
OR WIRE
IT OPEN
INSTALL A NON-COMBUSTIBLE
COVER PLATE TO PREVENT
WATER FROM ENTERING THE
CHIMNEY

Page 9
INSTALLATION PROCEDURE
(Use a chimney connector or a Listed Direct or Positive Connect) (See Page 8).
POSITIONING HEATER
When positioning heater, following conditions MUST be
met! (See Figure 8).
1. The front of damper opening must be positioned
BEHIND rear edge of lintel to ensure proper draft.
(See Figure 8).
2. Center heater in fireplace opening.
MOUNTING TRIM PANELS
Afterunit is positioned, mark the mounting position of
the trim panels as follows:
1. Place side trim panels in place, flat against face of
fireplace. Mark down front edge of trim panel with a
pencil to make a vertical reference line. (See Figure
9).
2. Place top (long) trim panel in place on top of unit.
The panel should be flat against outside face of fire-
place and standing vertically. Mark along lower
edge of trim panel with a pencil to make a reference
line for mounting.
3. Slide unit out of fireplace far enough to work
behind trim panel reference lines.
FIGURE 9 MOUNTING TRIM PANELS
FIGURE 8 POSITIONING
4. Mount side trim panels. (See Figure 9).
a. Position trim panel on reference line.
b. Drill mounting holes in center of trim panel mounting brackets to allow for adjustment in and out if
necessary.
c. Mount trim panel using self-tapping screws provided.
5. Place top panel back on reference mark. Take top trim panel mounting bracket supplied with unit. Position
bracket so it overlaps rear lip of top trim panel. Drill mounting holes in top of stove using holes in bracket as
guide. Tighten down screws.
6. Now, follow installation procedures in listed direct connect or positive connect kit you are using and install
heater connect kit in fireplace. If not using one of installation methods shown on
(Page 8). Continue.
7. Slide unit back into fireplace. Check to be sure that trim panels are properly positioned and lie flat against
front of fireplace. If one or more of the panels is out of position, slide unit out and reset by
loosening mounting screws and repositioning in slot.
8. Reinstall top trim panel by sliding rear lip of top trim panel underneath front lip of mounting bracket already
secured to top of unit.

Page 10
NOTE: Mount top trim panel so that it sits in front of top of side trim panels.
9. Obtain brass trim kit provided with insert kit and slip over top and sides of trim panels. Top ends of brass may
need to be trimmed to fit (See Figure 10).
10. Using insulation provided, peel and stick to back of panels overlapping fireplace dimensions by 1" on each
side and top. (See Figure 11).
11. Next using high heat silicone or furnace cement, run heavy bead of caulking around where panels meet
stove. (See Figure 11).
12. Slide unit back into fireplace. Check to be sure that trim panels (and brass) are properly positioned and lie flat
against front of fireplace. If panels are out of position, slide unit out and reset by loosening mounting screws
and repositioning in the slot. With bar lift stove up in front. Place insulation across front and surface of hearth
or bottom of fireplace to make complete seal.
13. To check seal of panels, use candle flame and go around entire area sealed by silicone and insulation. If flame
leans toward inside of fireplace, add additional insulation. This ensures an airtight seal.
FINAL CHECK
1. Recheck specified clearances.
2. Remove all foreign material from firebox area.
3. Open primary air control
Primary Air Control: The primary air intake draft control is located at center of hearth. It is
operated by moving handle IN to open (to allow air into the firebox) or OUT to control or close off air into
firebox. (See Figure 10).
4. Plug power cord into a 115V AC outlet if optional motor is being used. Do not run power cord under unit
or in high traffic areas.
5. Place crumpled pieces of newspaper in stove. Light it and close door. Ensure that stove draws properly
through primary draft.
6. Check for smoke leaks around the door.
7. Open door and check for smoke escaping from front of stove. Smoking usually indicates a defective or poorly
positioned chimney. Some chimneys with a marginal draft can be preheated by lighting newspaper and holding
it near open damper with a poker or fire tong. Once chimney heats up, a proper draft can usually be obtained.
If a thorough review of Troubleshooting Guide in manual does not reveal the problem, contact your dealer for
assistance.
FIGURE 11
HIGH TEMP
SILICONE
INSULATION
FIGURE 10
Primary Air Control
Side Trim Panel
Top Trim Panel Outer Trim

Page 11
CAUTION
THE UNIT IS PAINTED WITH A SPECIALLY FORMULATED HIGH
TEMPERATURE PAINT THAT CURES DURING THE FIRST TWO OR THREE
FIRINGS. YOU MAY NOTICE A SLIGHT SMOKING EFFECT AND AN ODOR OF
BURNING PAINT WHEN YOU BUILD THE FIRST FIRES. THIS IS NORMAL AND IS
NOT A CAUSE FOR ALARM. IN SOME CASES, THESE FUMES WILL ACTIVATE A
SMOKE ALARM. OPENING A WINDOW NEAR THE UNIT WILL ALLOW THESE
FUMES TO ESCAPE. DO NOT BUILD A LARGE, ROARING FIRE UNTIL THIS
CURING IS COMPLETE OR HEATER FINISH MAY BE DAMAGED.
The connector and/or chimney should be inspected at least once a month during heating season
to determine if a creosote buildup has occurred.
CAUTION
NEVER USE GASOLINE, GASOLINE-TYPE LANTERN FUEL, KEROSENE,
CHARCOAL LIGHTER FLUID OR SIMILAR LIQUIDS TO START OR "FRESHEN
UP" A FIRE IN THE HEATER. KEEP ALL SUCH LIQUIDS WELL AWAY FROM
THE STOVE WHEN IT IS IN USE. ALL FLUIDS OF THIS TYPE GIVE OFF
VOLATILE FUMES AND CAN AND WILL EXPLODE!! DON'T TAKE A CHANCE
WITH THE SAFETY OF YOUR HOME AND FAMILY.

Page 12
SECTION III
PRE-FAB INSERT INSTALLATION
The Model 74 has been tested with the following UL listed manufactured Pre-Fab Fireplaces:
Heatilator Security
Tempco Preway
Marco FMI
Woodside Majestic
The Model 74 will fit any of models that are large enough to accept them.
NOTE: A full chimney liner is required in a Zero Clearance or pre-fab fireplace.
NOTE: The ash lip, smoke baffle and smoke shelf may be removed if necessary to provide
room for these models. Any other alteration to unit will void ALL New Buck Corporation
responsibility and liability. The warning label below supplied with stove must be attached to
the back of fireplace.
Except for the “notes” above, please follow the instructions for Masonry Insert Installation
including Minimum Clearances for stove and floor protector in Section II.
NOTE: When installing trim panels DO NOT COVER ANY EXITING LOUVERS OR AIR
OPENING IN PRE-FABRICATED FIREPLACE.
WARNING: This fireplace must be
restored to its original condition for safe use, if
the fireplace insert is removed.

Page 13
SECTION IV
RESIDENTIAL FREESTANDING INSTALLATION
Select an installation location that will give best airflow from front of
heater to remainder of the home.
PREPARING STOVE FOR INSTALLATION
1. Inspect unit for any obvious physical damage.
2. Plug power cord into a 115V AC outlet to test motor and fan. Do not run power cord under unit or in
high traffic areas.
3. Check primary air draft control to ensure that it slides freely.(See Figure 12).
4. Remove any items from within the firebox. Spread a dropcloth on floor behind heater. Next, tilt
heater so that back is on drop cloth.
5. ( Leg Kit ): If legs are to be used, obtain four legs, attach legs to holes in bottom of unit with bolts
and washers supplied with leg kit. (See Figure 12).
6. ( Pedestal Kit ): If pedestal kit is being used and out side air is required for residential free
standing installation (see page 25 Out Side Air Installation). Open freestanding kit and obtain
stand. Place stand against bottom of heater (angle side to heater). Center stand front to back
and also center stand left and right. Mark screw locations on bottom of stove through outer holes of
stand mounting angles. Set stand aside and drill four 7/32" holes in heater bottom. Then mount stand to
bottom of heater with screws provided. (See Figure 13).
7. Obtain four (4) 3/16" self-tapping screws and secure stand to heater.
8. Reposition heater to upright position.
HOLES FOR MOUNTING PEDESTAL
Figure 13
Figure 12
PRIMARY AIR
DRAFT CONTROL
PEDESTAL

Page 14
Thermal conductance = C = Btu =W
(hr)(ft²)(°F) (m²)(°K)
Thermal conductance = K = (Btu)(inch) =W=(Btu)
(hr)(ft²)(°F) (m)(°K) (hr)(ft)(°F)
Thermal conductance = R = (ft²)(hr)(°F) =(m²)(°K)
Btu W
Chimney
This model is designed for connection to any listed 2100º UL103 HT chimneys and parts.
Follow chimneys manufacturer's instructions carefully.
This room heater must be converted to (1) a chimney complying with the requirements for
Type HT chimneys in the Standard for chimneys, Factory-Built, Residential, Type and
Building Heating Appliance, UL 103, or (2) a code approved masonry chimney with a flue
liner.
Floor Protection:
When installing freestanding heater, a floor protector must be use. Floor protector must be 3/8”
minimum thickness non-combustible material or equivalent.
How to use alternate materials and how to calculate equivalent thickness
An easy means of determining if a proposed alternate floor protector meets requirements listed
in the appliance manual is to follow this procedure:
1. Convert specification to R-value:
R-value is given—no conversion is needed.
K-factor is given with a required thickness (T) in inches:
C-factor is given: R=1/C
2. Determine the R-value of the proposed alternate floor protector.
Use the formula in step (1) to convert values not expressed as “R”
For multiple layers, add R-values of each layer to determine the overall R-value.
3. If the overall R-value of the system is grater than the R-value of the specified floor protec-
tor, the alternate is acceptable.
Example:
The specified floor protector should be 3/4” thick material with a K-factor of 0.84.
The proposed alternate is 4” brick with a C-factor of 1.25 over 1/8” mineral board with a
K-factor of 0.29.
Step (a): Use formula above to convert specification to R-value. R= 1/K x T = 1/0.84 x .75 =
0.893
Step (b): Calculate R of proposed system. 4” brick of C=1.25, therefore Rbrick = 1/C = 1/1.25
=0.80 1/8” mineral board of K = 0.29, therefore Rmin.bd. =1/029 x0.125 = 0.431
Step (c): Compare proposed system R of 1.231 to specified R of 0.893. Since proposed
system R is greater than required , the system is acceptable.
Definitions:
Install in accordance with 24 CFR, Part 3280 (HUD).

Page 15
3 SHEET METAL SCREWS OR RIVETS
CEILING
ROOF
ATTIC
CEILING
"TEE" BOX ASSEM.
CENTER LINE
OF ELBOW
MARK PLUMB LINE
WALL
WALL PASS-THROUGH CONNECTOR
18" MIN.
Figure 5
COLLAR
3 SHEET METAL SCREWS
Figure 14
COLLAR
3 SHEET METAL SCREWS
CAUTION
SPECIAL METHODS ARE REQUIRED WHEN PASSING THROUGH A WALL OR
CEILING. SEE INSTRUCTIONS AND BUILDING CODES. DO NOT CONNECT THIS
UNIT TO A CHIMNEY FLUE SERVING ANOTHER APPLIANCE.
DETERMINING CHIMNEY LOCATION
A. CEILING EXIT (USING SINGLE WALL (minimum 24ga.) pipe and 2100° UL 103 HT type
chimney system listed with manufacturer in this section of manual.)
1. Suspend a plumb bob from ceiling above unit so that weight is hanging in center of flue exit. (A small weight
on a string will serve as a plumb bob). Mark ceiling where string is suspended to locate center of chimney.
(See Page 16, Figure 14).
2. After locating center of hole, install ceiling support box, chimney flashing and rain cap, per chimney manu-
facturer’s instructions.
Now connect stove and ceiling support box using #24 ga. minimum blue or black steel connector
pipe (DO NOT USE GALVANIZED PIPE). Connect each section so crimped end faces downward and secure
each section to each other using at least three (3) sheet metal screws or rivets. Also use three (3) sheet metal screws to
fasten pipe to collar on heater. (See Page 16, Figure 14).

Page 16
B. Wall Exit Into Metal Tee-Box
1. Mark plumb line on wall directly behind center of heater. (See Figure 15).
NOTE: When using 24# ga. minimum blue or black steel pipe, maintain 18" between pipe
and ceiling. (See Figure 15).
NOTE: Floor protector must be under horizontal pipe exit (See Figure 18, Page 20).
2. Place vertical portion of heater pipe and elbow in position and project a point onto
Plumb line level with center of elbow.
3. Measure up so there will be at least 1/4" rise per foot of horizontal connector pipe, maintaining clearances
to ceiling as noted in (Figure 15). This will give you center of hole for chimney penetration.
4. After locating center of penetration, install tee-box and chimney, as per chimney manufacturer's
specifications.
5. Connect chimney connector to tee-box using #24 ga. minimum blue or black steel connector pipe.
DO NOT use galvanized pipe. Connect each section so the crimped end faces downward and secure each
section to each other using three (3) sheet metal screws or rivets. (See page 15 Figure 14).
Figure 15
CEILING
ROOF
ATTIC
CEILING
"TEE" BOX ASSEM.
CENTER LINE
OF ELBOW
MARK PLUMB LINE
WALL
WALL PASS-THROUGH CONNECTOR
18" MIN.
TEE BOX ASSEM.
CLEAN OUT ACCESS
FLOOR PROTECTOR

Page 17
C. Wall Exit Into Masonry Flue (Using Single Wall Pipe)
1. Before connecting these units to a masonry chimney, determine that masonry flue pass-through connector thimble
meets NFPA-211 Code and local building codes and is a minimum of 18" from ceiling. If connector thimble
does not meet these codes, the pass-through connector must be modified. (See Figure 16)
NOTE: Floor protector must be under horizontal pipe exit (See Figure 18, Page 20).
Connectors may pass through walls or partitions constructed of combustible material if connector is:
(a) Either listed for wall pass-through or is routed through a device listed for wall pass-through and is installed in
accordance with conditions of listing.
(b) Selected or fabricated in accordance with conditions and clearances as stated in NFPA-211 Code. Any
unexposed metal that is used as part of a wall pass-through system and is exposed to flue gases shall be
constructed of stainless steel or other equivalent material that will resist corrosion, softening or cracking from
flue gases at temperatures up to 1800o F.
In addition, aconnector to a masonry chimney shall extend through wall to inner face or liner but not beyond. It
should be firmly cemented to masonry.
EXCEPTION:
A thimble may be used to facilitate removal of chimney connector for cleaning, in which case thimble shall be
permanently cemented in place with high-temperature cement.
2. Once through-the-wall thimble codes are met, simply connect chimney collar to wall pass-through connector
using #24 ga. minimum, blue or black steel connector pipe as follows:
(a) Maintain 1/4" rise per foot (horizontal length) from appliance to chimney.
(b) Connect each section so crimped end faces downward.
(c) Secure each section to each other using at least three (3) sheet metal screws or rivets. (See Page 15, Figure 14).
(d) Use three (3) sheet metal screws to fasten pipe to connector collar on heater. (See Page 15, Figure 14).
Figure 16
CEILING CENTER LINE
OF ELBOW
SECURE WITH (3)
SHEET METAL SCREWS
1/4” RISE PER FT’
MASONRY CHIMNEY
FLOOR PROTECTOR
See Figure 9, Page 19
CLEAN OUT
DOOR
MASONRY
FLUE
LINERS
MARK PLUM LINE
SEAL AROUND PIPE TO
THIMBLE OR PASS-
THROUGH CONNECTOR
WITH NON-COMBUSTIBLE
MATERIAL
WALL

Page 18
D. Ceiling Exit-Close Clearance
1. Suspend a plumb bob from ceiling above unit so that weight is hanging in center of flue exit (A small weight on
a string will serve as a plumb bob). Mark ceiling where string is suspended to locate center of chimney hole.
2. After locating center of hole, install ceiling support box, chimney flashing and rain cap.
3. Install Double Wall Connector and close clearance chimney systems, per manufacturers written instructions.
See stove manufacturers list of tested pipes (See Below).
This unit may be installed using the following double wall close clearance chimney systems:
(1) 6" Simpson Dura-Vent double wall chimney connector “Type DVL” and 6" Simpson Dura-Vent 2100º HT.
“Type DP” chimney. (2) 6" Security Type DL double wall connector and 6" Security Type "ASHT" High Temp
Chimney. (3)6" Selkirk Metal Bestos Model “DS” double wall connector- 6" Selkirk Metal Bestos Model SSII
Type HT Chimney System. (4) 6" Metal Fab Type “DW” double wall connector– 6" Metal Fab 2100 HT
chimney. (5) 6" Air Jet. (6) Jakes Evans. For minimum clearances (See pages 20,21,22).
Alcove Installation Clearances
Alcove installation must use 6" Double Wall Connector and 6" Type 2100° UL 103 HT Pipe listed for close
clearance reduction that is listed in this manual. For measurements and minimum clearances (See page 24).
CEILING
ROOF
ATTIC
CEILING
"TEE" BOX ASSEM.
CENTER LINE
OF ELBOW
MARK PLUMB LINE
WALL
WALL PASS-THROUGH CONNECTOR
18" MIN.
COLLAR
Figure 17