BuckMaster MODEL 20 User manual

Buck Stove
FIREPLACE INSERT & FREESTANDING
MODEL 20 Room Heater
“MEETS PHASE II EPA STANDARDS”
FEATURES
PREPARATIONS INSTALLATION
OPERATION MAINTENANCE SAFETY
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: ITS/WARNOCK HERSEY, MIDDLETON, WI
MANUFACTURED BY NEW BUCK CORPORATION
200 ETHAN ALLEN DRIVE, PO BOX 69
SPRUCE PINE, N.C. 28777
www.buckstove.com Revised January 2013
PN-PI-200660
Contact your insurance company for coverage and installation inspection

Page 1
TABLE OF CONTENTS
SECTION 1:
Room Heater Features.................................................................................................................................................3
Important Statements ..................................................................................................................................................4
SECTION II:
Masonry Insert Installation .........................................................................................................................................6
Minimum Clearances..................................................................................................................................................7
Required Fireplace Dimensions..................................................................................................................................8
Tools for Installation...................................................................................................................................................8
Installation Preparation: Fireplace .............................................................................................................................8
Installation Preparation: Heater..................................................................................................................................8
Installation Procedure—Direct Connect .....................................................................................................................9
Positioning the Heater.................................................................................................................................................9
Mounting the Trim Panels......................................................................................................................................9-10
Final Check...............................................................................................................................................................11
SECTION III:
Freestanding Installation...........................................................................................................................................13
Minimum Clearances................................................................................................................................................14
Tools for Installation.................................................................................................................................................15
Installation Preparation .............................................................................................................................................15
Determining the Chimney Location..........................................................................................................................16
Final Check...............................................................................................................................................................19
SECTION IV:
Mobile Home Installation .........................................................................................................................................20
Parts Requirements ...................................................................................................................................................20
Minimum Clearances................................................................................................................................................21
Tools for Installation.................................................................................................................................................21
Installation Preparation .............................................................................................................................................22
Determining the Chimney Location..........................................................................................................................23
Final Check...............................................................................................................................................................24
SECTION V:
Zero-Clearance Installation.......................................................................................................................................25
Minimum Clearances................................................................................................................................................27
SECTION VI:
Safety ........................................................................................................................................................................29
SECTION VII:
Operation...................................................................................................................................................................30
Building a Fire ..........................................................................................................................................................30
Operating and Safety Hints.......................................................................................................................................32
Guide to Burning Qualities of Wood ........................................................................................................................32
Helpful Hints.............................................................................................................................................................32
SECTION VIII:
Manufacturers Suggested Preventive Maintenance ..................................................................................................33
Catalytic Inspection...................................................................................................................................................33
Catalyst Replacement................................................................................................................................................34
Door Gasket Replacement.........................................................................................................................................35
Electrical Operation ..................................................................................................................................................36
SECTION IX:
Troubleshooting Guide .............................................................................................................................................37
ZERO-CLEARANCE CABINET MODEL ZC20 ...............................................................................................47
SECTION I:
Residential Installations............................................................................................................................................48
SECTION II:
Mobile Home Installations........................................................................................................................................55
WARRANTY—Heater..............................................................................................................................Back Cover

Page 2
SECTION I
The New Buck Corporation room heater Model 20 is one of the safest and most efficient heating systems
available when installed and operated as specified in these instructions and as stipulated on the operation and
installation labels affixed to the unit. The unit is designed to burn wood fuel only.
Please read this entire manual before you install and use your new room heater. Failure to follow instructions may
result in property damage, bodily injury or even death.
Throughout manual, you will see this symbol . This indicates areas of importance regarding safety. Please
make a special note of these areas.
Install and use only in accordance with the manufacturers installation and operating instructions. Do not connect
this unit to a chimney flue serving another appliance.
ROOM HEATER FEATURES
Before attempting to install or operate your heater, it is a good idea to familiarize yourself with features and
operating controls of unit.
OPERATING CONTROLS
WARNING: Model 20 heater was not designed for fire grates.
1. Bypass Damper: The bypass damper control is located at top center of heater front just under top. It is
operated by pushing or pulling damper rod. The damper is fully open when handle is pulled out and fully
closed when it is pushed in. The damper must be open before door is opened.
2. Blower Control: The blower control switch is located behind access door at lower right hand side of front of
unit. The unit has an Auto-Off-Manual switch. Set switch to Manual position and blower will start at any
temperature. Set switch to Off position and blower will not run at any temperature. Set switch to Auto
position and when stove temperature reaches 110oF, blower will automatically turn on.
3. Primary Air Control: The primary air intake draft control is located on upper portion of unit next to top
extension. It is operated by moving up and down to control the amount of primary air entering firebox.
4. Warm Air Outlets: Provides heat extraction from top of firebox.
5. Baffles: Directs air flow around unit for maximum heat transfer.
6. Air Inlet: Allows cool air near floor to be circulated through blower and back into warm air chamber of
heater.
7. Stand: Elevates heater above floor for safety and a neat appearance.
8. Door: Provides an “airtight” feature. The door allows a much higher burning efficiency than can be obtained
with an open firebox.
9. Hearth Extension: Offers protection from spilled ashes and cinders.
10. Power Cord: Provides electrical power to operate blower.
11. Chimney Connector: Used to connect unit to chimney or direct connect kit.
12. Catalysts: Enables unit to burn cleanly and efficiently.
13. Temperature Monitor: The location can be used for either a fireplace insert or freestanding installation.
Monitor hole is located to right of damper rod on front. Remove plug and insert probe provided by
manufacturer.
14. Cover Door: Conceals blower, blower controls and ash pan.
15. Air Wash: Primary air is directed in such a way as to provide a “sweeping” air wash over the glass to assist in
keeping it clean.
16. Ash Pan: Provides for easy ash removal
17. Outside Air Control: Allows for adjustment of amount of outside air entering unit (installations using outside
air kit #P21B). Required in Mobile Home Installation.

Page 3
EPA COMPLIANCE STATUS
This manual describes the installation and operation of the New Buck Corporation, Model 20 wood heater.
This heater meets the U.S. Environmental Protection Agency’s Emission limits for wood heaters sold after July
1, 1992. Under specific test conditions this heater has been shown to deliver heat at rates ranging from
approximately 10,000 to 39,000 BTU/hr.
SAFETY STANDARD COMPLIANCE
The Model 20 catalytic solid fuel (wood) burning combination room heater/fireplace stove manufactured by
New Buck Corporation complies with UL 1482-1988:16CFR1209:UL 127 (1988): UL 1482 (2006):UL 1482
(2008):UL 1482 (2006):UL 1482 (2010) and UL 737-1995 for residential freestanding and masonry fireplace
insert installations when constructed and installed in accordance with ITS approved documentation.
CATALYST EQUIPPED
This wood heater contains a catalytic combustor, which needs periodic inspection and replacement for proper
operation. It is against the law to operate this wood heater in a manner inconsistent with operating instructions
in this manual or if the catalytic element is deactivated or removed.
CATALYST WARRANTY
The combustor supplied with this heater is a set of (2) (2x3-5/16x7x25 cells). Consult the catalytic combustor
warranty also supplied with this heater. All warranty claims should be addressed to:
Applied Ceramics
Customer Service Department
P.O. Box 29664
Atlanta, GA 30359
770-448-6888
See enclosed catalyst warranty for instructions. New Buck Corporation does not handle catalyst replacements.
Customer can order directly from Applied Ceramics.
PROPER FUEL SELECTION
This heater is designed to burn dried natural seasoned hard wood only. Higher efficiencies and lower emissions
generally result when burning air dried natural seasoned hardwoods, as compared to softwoods or to green or
freshly cut hardwoods.
DO NOT BURN:
1) Treated Wood 3) Garbage 5) Solvents 7) Trash
2) Coal 4) Cardboard 6) Colored Paper
Burning treated wood, garbage, solvents, colored paper or trash may result in release of toxic fumes and may
poison or render catalytic combustor ineffective.
Burning coal, cardboard or loose paper can produce soot or large flakes of char or fly ash that can coat
combustor, causing smoke spillage into room and rendering combustor ineffective.
ACHIEVING CATALYTIC LIGHT-OFF
The temperature in stove and gases entering combustor must be raised to between 500o F to 700oF for catalytic
activity to be initiated. This can be determined with use of a temperature monitor (TM-20). During start up of a
cold stove, a medium to high firing rate must be maintained for about 20 minutes. This ensures that stove,
catalyst and fuel are all stabilized at proper operating temperatures. Even though it is possible to have gas
temperatures reach 600o F within two to three minutes after a fire is started, if fire is allowed to die down
immediately it may go out or combustor may stop working. If this happens open damper to raise temperature
to activate catalyst. Once the combustor starts working, heat generated in it by burning smoke will keep it
working.
ACHIEVING CATALYTIC LIGHT-OFF WHEN REFUELING
During refueling and rekindling of a cool fire or a fire that has burned down to charcoal phase, operate stove at
a medium to high firing rate for about 10 minutes to ensure catalyst reaches approximately 600o F.

Page 4
CATALYST MONITORING
It is important to periodically monitor operation of catalytic combustor to ensure that it is functioning properly and
to determine when it needs to be replaced. A non-functioning combustor will result in a loss of heating efficiency
and an increase in creosote and emissions. The following is a list of items that should be checked on a periodic
basis.
Combustors should be visually inspected at least three times during heating season to determine if physical
degradation has occurred. Actual removal of the combustor is not recommended unless more detailed inspection is
warranted because of decrease in performance. If any of these conditions exist, refer to Catalyst Troubleshooting
Section of the owner’s manual.
This catalytic heater is equipped with means to install a temperature probe to monitor catalyst operation. Properly
functioning combustors typically maintain temperatures in excess of 1000oF. If catalyst temperatures are not in
excess of 500o F, refer to Catalyst Troubleshooting section of this owner’s manual. A indication of whether
catalyst is working by comparing the amount of smoke leaving the chimney (when the smoke is going through the
combustor and catalyst light-off has been achieved) to amount of smoke leaving chimney when the smoke is not
routed through combustor (bypass mode).
Step 1—Light stove in accordance with instructions.
Step 2—With smoke routed through catalyst, go outside and observe emissions leaving
chimney.
Step 3—Engage bypass mechanism and again observe emissions leaving the chimney.
Significantly more smoke should be seen when exhaust is not routed through the combustor (bypass mode). Be
careful not to confuse smoke with steam from wet wood.
CAUTION AGAINST OVER-FIRING
Do not over-fire this heater.
Attempts to achieve heat output rates that exceed heater design specifications can result in permanent damage to
the heater and to the catalytic combustor.
MAINTAIN PROPER DRAFT
Draft is the force which moves air from appliance up through chimney. The amount of draft in your chimney
depends on length of chimney, local geography, nearby obstructions and other factors. Too much draft may cause
excessive temperatures in appliance and may damage catalytic combustor. Inadequate draft may cause backpuffing
into room and “plugging” of chimney or catalyst.
Inadequate draft will cause appliance to leak smoke into room through appliance and chimney connector joints.
An uncontrollable burn or a glowing red stove part or chimney connector indicates excessive draft.
ASH REMOVAL
CAUTION: Never remove ashes from heater with blower running.
Whenever ashes build up in firebox and when fire has burned down and cooled, remove excess ashes. Leave an
ash bed approximately 1 inch deep on firebox bottom to help maintain a hot charcoal bed.
Ashes should be placed in a metal container with a tight fitting lid. The closed container of ashes should be placed
on a non-combustible floor or on ground, away from all combustible materials, pending final disposal. The ashes
should be retained in closed container until all cinders have thoroughly cooled.

Page 5
SECTION II
MASONRY INSERT INSTALLATION
INSTALLATION PRECAUTIONS
Extensive field and laboratory testing has shown that catalytic stoves perform best as fireplace inserts when:
1. A direct connect kit is used to connect the stove exhaust outlet directly to masonry flue of fireplace when flue
liner size is approximately same size as heater flue gas exit. A rain cap is also recommended to keep flue dry
thus allowing a hotter draft.
NFPA 211 CODE: The National Fire Protection Association code requires all fireplace insert heaters to be
positively connected from heater to flue liner (subject to State and Local codes in your area).
2. An equivalent sized flue liner is installed when flue liner size is larger than heater flue gas exit. Connection
must be from stove exhaust outlet extending full height of chimney and must include a rain cap.
3. Location of chimney is interior (not on an outside wall).
Satisfactory results have been reported with installations other than as listed above. However, as all chimneys draw
differently, problems with performance may be encountered if steps are not taken to keep the chimney hot. A draft
between .03 and .06 inches of water column is recommended for proper catalytic operation.
Use the following to complete installation of unit as an insert : Kit #FP20
INSTALLATION
(Fireplace Insert)
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.
FIGURE 1 FIREPLACE INSERT
REQUIRED FIREPLACE DIMENSIONS
Minimum and/or maximum fireplace dimensions:
Height Width Depth
Min. Max. Min. Max. Min.
Model 20 22” 31” 26” 41” 16”

Page 6
FLOOR PROTECTION
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 greater than the R-value of the specified floor
protector, 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:
Thermal conductance = C = Btu = W
(hr)(ft²)(°F) (m²)(°K)
Thermal conductance = K = (Btu)(inch) = W = (Btu)
(hr)(ft²)(°f) (m)(°K) (hr)(tf)(°F)
Thermal conductance = R = (ft²)(hr)(°F) = (m²)(°K)
Btu W
Install in accordance with 24 CFR, Part 3280 (HUD).
MINIMUM CLEARANCES

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 cloth 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 the
Uniform Building Code and the 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 some cases such as improperly drawing fireplaces, oversize flue liners or to meet codes in
certain areas, it is recommended that one of the following procedures be followed:
A. A Chimney Connector can be installed from appliance flue exit through damper and
an air-tight face seal. See option (A) page 9.
B. A listed Direct Connect can be installed from appliance flue exit through damper
into first section of flue liner with air-tight seal. See option (B) page 9.
C. A Positive Connect can be installed from appliance flue exit continuing through
entire chimney and exiting at top of the chimney. See option (C) page 9.

Page 8
OPTION (B)
REMOVE
DAMPER
OR WIRE IT
OPEN
AIRTIGHT
INSULATED
CLEAN-
OUT
BLOCK-OFF PLATE
OR DAMPER
ADAPTER
SEAL TRIM PANELS
WITH INSULATION
OR HIGH
TEMPERATURE
CAULK
STAINLESS
STEEL
CHIMNEY
CONNEC-
TOR 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 maintenance of your appliance, and assumes
no responsibility of any consequential damage
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 CONNEC-
TOR OR FLEXIBLE
VENT. FOLLOW
THE LINER MANU-
FACTURER’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 9.)
POSITIONING THE HEATER
When positioning heater, following conditions MUST be
met! (See Figure 2).
1. The front of damper opening must be positioned
BEHIND back edge of lintel to ensure proper draft.
(See Figure 2).
2. Center heater in the fireplace opening.
MOUNTING THE TRIM PANELS
After unit is positioned, mark mounting position of trim
panels as follows:
1. Place side trim panels in place, flat against face of
fireplace. Mark front edge of trim panel with pencil
to make vertical reference line. (See Figure 3).
2. Place long trim panel on top of unit. The panel
should be flat against outside face of fireplace and
standing vertically. Mark the 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.
4. Mount side trim panels. (See Figure 3).
a. Position trim panel on reference line. FIGURE 3 MOUNTING TRIM PANELS
FIGURE 2 POSITIONING
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. Top trim panel mounting bracket is 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 screws.
6. 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 the installation methods shown on
(Page 9), continue.
7. Slide unit back into the fireplace. Ensure trim panels are properly positioned and lie flat against front of fire-
place. If one or more panels is out of position, slide unit out and reset by loosening mounting screws and re-
positioning in slot. Reinstall top trim panel by sliding rear lip of top trim panel underneath front lip of mount-
ing bracket already secured to top of unit.
8. NOTE: Mount the top trim panel so that it sits in front of the top of the side trim panels.

Page 10
9. Obtain the 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 4).
10. Using insulation provided, peel and stick to back of panels overlapping fireplace dimensions by 1" on each
side and top. (See Figure 4A).
11. Next using high heat silicone, or furnace cement, run heavy bead of caulking around where panels meet the
stove. (See Figure 4A).
12. Slide unit back into the 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 loos
ening mounting screws and repositioning in the slot. Using the 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 intake control is located at top right side of stove. It is operated by moving
up (to close) and down (to open) to control amount of primary air entering firebox.. (See Figure 4).
4. Plug power cord into a 115V AC outlet if optional motor is being used. Do not run cord under unit or in
high traffic areas.
5. Place rumpled pieces of newspaper in the stove. Light it and close door. Ensure that stove draws properly
through primary draft.
NOTE: Do not use grate or elevate fire. Build wood fire directly on inner bottom of fire box.
6. Check for smoke leaks around 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 problem, contact your dealer for
assistance.
FIGURE 4A
Buck Stove
FIGURE 4
Primary Air
Control
Top Trim Panel
Side Trim Panel
Outer Trim
HIGH TEMP
SILICONE
INSULATION

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 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 the 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 HEATER. KEEP ALL SUCH LIQUIDS WELL AWAY FROM
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 SAFETY OF YOUR HOME AND FAMILY.

Page 12
SECTION III
RESIDENTIAL FREESTANDING ROOM HEATER
INSTALLATION
INSTALLATION PRECAUTION
Extensive field and laboratory testing has shown that catalytic stoves perform best as freestanding stoves when
vented into a masonry chimney if:
1. A rain cap is installed on chimney.
2. Height of chimney is at least 15 feet high.
3. Location of chimney is interior (not on an outside wall).
NOTE: Certain types of double wall pipe (close clearance) also cause a substantial drop in flue gas temperature. If
a double wall pipe connector is being contemplated, check with pipe manufacturer to ascertain that use of their
product will not affect flue gas temperature. Do not use double wall pipes which reduce flue gas temperatures.
Satisfactory results have been reported with installations other than listed above. However, draft problems are
possible if a hot chimney is not maintained.
Use pedestal kits as follow:
Model 20 Kit #P8 or #P21B
CAUTION: Do not connect this unit to a chimney flue serving another appliance.

Page 13
MINIMUM CLEARANCES
The New Buck Corporation Model 20 must be installed in compliance with instructions contained in this manual.
CLEARANCE FROM COMBUSTIBLE WALLS AND CEILINGS (Using single wall chimney connector)
The minimum lateral distance between any part of the room heater and combustible walls is shown in Figures 1
and 2.
FIGURE 1 WALL INSTALLATION FIGURE 2 CORNER INSTALLATION
FLOOR PROTECTION
If a freestanding model is to be installed on a combustible floor, a non-combustible pad must be placed below it to
protect floor from burning material from stove. UL tests were conducted without a floor protector. Therefore,
protector can be of any thickness and any K* factor.
The unit must be positioned on pad so that there is a minimum of 16” from the front of door opening to front of
pad and a minimum of 8” measured horizontally from the sides of fuel loading and ash removal openings to sides
of pad.
NOTE: For clearance reductions using wall protectors, refer to the NFPA -211 code.

Page 14
Close clearance installations using listed Close Clearance pipe and 2100o HT chimney system from approved
manufacturer’s list. (See page 18)
FIGURE 3 WALL INSTALLATION FIGURE 4 CORNER INSTALLATION
TOOLS FOR INSTALLATION
Drop Cloth
Electric Drill with 3/32” drill bit
5/16” combination wrench
5/16” magnetic socket chuck adapter, 5/16” wrench (box or socket) or adjustable wrench
Socket Set
Tape Measure
Pencil
Level
PREPARING THE STOVE FOR INSTALLATION
1. Inspect unit for any obvious physical damage.
2. Plug power cord into a 115V AC outlet. Set switch to “Manual” and rheostat to “High” position to ensure
motor operates properly.
3. Check primary air draft control to ensure that it operates freely.
4. Check operation of bypass damper control to ensure that it will open and close properly.
5. Remove any items from within the firebox. Spread drop cloth on floor behind heater. Next, tilt heater so that
back is on drop cloth.
6. Using a tape measure, make a line down 3” from front of heater.
7. Open corresponding freestanding kit and obtain stand. Place stand against bottom of heater (angle side to
heater) at marked line. Center stand left and right and mark screw locations on bottom through outer holes of
stand mounting angles. Set stand aside and drill four 3/32” holes in heater bottom.
8. Obtain four 3/16” self-tapping screws and secure stand to heater. (See Figure 4A)
9. Reposition heater to upright position.
12”
FOUR NEW HOLES
Figure 4A

Page 15
PREPARING THE ROOM HEATER LOCATION
1. Select an installation location that will give the best airflow from front of heater to remainder of home.
2. Place protective floor pad in position.
3. Place unit on pad making sure the minimum clearance specifications are met.
4. If connecting to an existing masonry flue, first ensure that flue conforms to the NFPA-211 Code and/or
consult your local code for proper procedures.
CHIMNEY
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.
CAUTION: Certain installation types require the use of certain chimney types. Please follow these
instructions exactly.
DETERMINING THE CHIMNEY LOCATION
A. Ceiling Exit (Using Single Wall Pipe)
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.
2. After locating center of hole, install ceiling support box, chimney or chimney connector, flashing and rain
Cap per chimney manufacturers instructions and local building codes for installation through combustible
walls or ceilings.
3. Now connect stove and ceiling
support box using #24 ga.
minimum blued 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.
Single wall pipe is to be
connected with 3 screws or
rivets to New Buck
Corporation Chimney
Connector after connector has
been attached to stove. (See
Figure 5)
CEILING
CEILING
SUPPORT
BOX
SINGLE WALL
CONNECTOR PIPE
NEW BUCK CORP.
CHIMNEY CONNECTOR
NOTE:
SEE CHIMNEY
MANUFACTURERS
INSTALLATION
INSTRUCTIONS
FOR INSTALLING
CHIMNEY AND
CEILING TRIM
PLATE.
FIGURE 5

Page 16
B. Wall Exit into Metal Tee-Box
1. Mark plumb line on wall directly behind
center of heater. (See Figure 6)
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 6. This will give you
center of hole for chimney penetration.
4. After locating center of penetration,
install tee-box and chimney or chimney
connector as per chimney manufacturers
specifications and local building codes
for installation through combustible
walls or ceilings. FIGURE 6 FLUE EXIT
5. Connect chimney collar to tee-box using #24 ga. minimum blued 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) steel sheet metal screws or rivets.
6. After securing New Buck Corporation Chimney Connector to heater, secure pipe to connector with three (3)
screws or rivets.
C. Wall Exit Into Masonry (Using Single
Wall Pipe)
Before connecting Model 20 to a
masonry chimney, determine that
masonry fireplace wall pass-through
connector thimble meets the NFPA-211
code and local building codes and is a
minimum of 18” from the ceiling. If
connector thimble does not meet these
codes, pass-through connector must
be modified. NOTE: Follow chimney or
chimney connector manufacturer’s
instructions.
Connectors may pass through walls or
partitions constructed of combustible
material if the 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 the conditions of
the listing
FIGURE 7 FLUE GAS EXIT INTO
MASONRY CHIMNEY
CHIMNEY
PASS-THROUGH
CONNECTOR

Page 17
(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 1800oF.
In addition, a connector to a masonry chimney shall extend through wall to inner face or liner but not beyond. It
shall 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 the through-the-wall thimble codes are met, simply connect chimney collar to wall pass-through
connector using #24 ga. minimum blued 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.
(d) After securing New Buck Corporation Chimney Connector to heater secure pipe to connector with three
(3) screws or rivets.
D. Ceiling Exit-Close Clearance (Using Listed Close Clearance Pipe and 2100oHT Chimney System From
Approved Manufacturers List. ) (See page 18)
1. Suspend a plumb bob from ceiling
above unit so that weight is hanging
in the 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. Next, install a New Buck Corp-
oration Chimney Connector to flue
of the heater.
4. Connect listed chimney to heater and
follow pipe manufacturers
installation instructions exactly.
CEILING
CEILING SUP-
PORT BOX
SIMPSON DURA-
VENT TYPE
”DVL” DOUBLE
WALL CHIMNEY
CONNECTOR
NEW BUCK
CORP. CHIM-
NEY CON-
NECTOR
NOTE: SEE SIMPSON
DURA-VENT TYPE
“DP” CHIMNEY
INSTRUCTIONS FOR
INSTALLING CHIM-
NEY.
FIGURE 8

Page 18
FINAL CHECK
1. Recheck specified clearances.
2. Remove all foreign material from firebox area.
3. Open primary air draft and damper bypass.
4. Plug power cord into a 115V AC outlet. Set switch to “Manual” and rheostat to “High” position to ensure
motor operates properly.
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 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 problem, contact your dealer for
assistance.
NOTE: 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 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.