Stuv 21/95 SF User manual

NZ
STÛV 21
INSTALLATION MANUAL
Keep these instructions for future reference
REQUIRED TOOLS
Grinder Hammer
Impact driverLevel
Knife with
retractable blade
Measuring
tape
5 mm
hex socket
Crowbar
Flat screwdriver
Cutting pliers
Torx 20 bit
10 mm
hex socket
Torx 25 bit
REQUIRED MATERIAL
12mm or 18mm non
combustible board e.g
Promatect H
Stûv handle
Protective fabric
or cardboard
Flue kit
75mm Hebel or
40mm Skamotec
No. 8
Wood screws
Torx 30 bit
No. 2
phillips bit
T25
10mm
5 mm
hex bit
T30
No. 2
square bit
T20
REQUIRED HARDWARE
5mm 8mm
5mm
#2
8 mm
hex socket
PH2
Floor and wall
finishing
Metal framing
Construction wood
These products are tested in accordance with AS/NZS 2918:2001. All installations must be carried out by an S.F.A.I.T (Solid Fuel Authorised Technician).
In New Zealand, the Stûv 21 must be bolted to the base to comply with the seismic restraint provisions of AS/NZ 2918:2001
Important: UNLOCK the door and remove all items before installing
!

You have chosen aStûv fireplace ;we thank you for it! It has been designed
to offer maximum pleasure, comfort and safety.The utmost care has been
taken in manufacturing it.
COMBUSTION TECHNIQUE & AIR CIRULATION
IMPORTANT
Before installing this Stûv unit,inquire with your dealer about all the
requirements that need to be met.
STÛV 21 -NZ 2
1. Combustion air.
Illustration with direct air intake
under the stove. The outside air
intake can also be located at the rear
of the stove.
2. Combustion.
The air intake, the combustion
chamber and smoke exhaust form an
airtight system.
3. The air is taken into the room
then heated by the stove.
4. The hot air is exchanged with the
convection air which flows along the
combustion chamber.
5. Heated air is spread throughout
the room thanks to natural
convection.
6. Burnt gases are released via the
flue. Illustration with vertical
discharge.
7. The window cleaning system
involves an air supply that takes flue
gasses away from the glass. This
means that you can have flickering
flames at all times.
!
STÛV 21

1. CERTIFICATION 4
1. Safety Instructions
2. Marking labels
5
6
2. COMPONENTS 7
1. List of components
2. Optional Kits
8
11
REQUIRED HARDWARE
6. USE 51
7. MAINTENANCE 56
REQUIRED HARDWARE
8. WARRANTY 65
1. Wood selection
2. Do not use
3. Firescreen
4. Starting thefire
5. Reloading thefire
6. Ash Removal
1. Regular maintenance
2. Annual maintenance
3. Creosote andchimney-sweeping
4. Pulleys andcounterweights
5. Components replacement
57
58
59
60
61
1. Warranty details
2. Warranty form
66
67
3. DIMENSIONS 12
1. Single face
2. Double face
3. Cavity Ventilation
4. Floor protection
5. Framework characteristics
6. Non-combustible material cut-out plan
7. Hebel plan
8. Air Supply
9. Fitted television
10. Shelf made of combustible material
11. Hearth extension
12. Risk area
13
14
15
16
17
17
18
21
23
23
24
25
REQUIRED HARDWARE
4. INSTALLATION 26
1. Unpacking
2. Option: Adjustable stands
3. Option: Airtight box
4. Door andpulleys
5. Preparing forconvection
6. Leveling theunit
7. Interior ofcombustion chamber
8. Convection installation
9. Finishing without a front panel
5. CHIMNEY 47
1. Dimensions and certification
2. Typical installation
3. Flue termination
TABLE OF CONTENTS
STÛV 21 3
52
53
54
55
56
57
27
30
32
34
35
39
40
44
46
48
49
50

CERTIFICATION
1. SAFETY INSTRUCTIONS .................................................................................................................. 5
2. TECHNICAL SPECIFICATIONS ........................................................................................................ 6
3. MARKING LABELS ............................................................................................................................ 7

1 .1 SAFETY INSTRUCTIONS
Tested by AustralianSolidFuelTesting
Test Report No -ASFT18044
The Stûv 21 Inbuilt appliance installed with a triple skin flue system, conforms to the requirements of
Australian/New Zealand Standard 2918:2001, with respect to floor, side wall and rear wall surface
temperatures, when tested in accordance with Appendix B of AS/NZS2918:2001.
This wood heater must be installed in
accordance with standard AS/NZS
2918:2001,the Installation Code
for
Solid-Fuel-Burning Appliances and
Equipment, the applicable building
code and standards applicable to
the structure in which the insert will be
installed.
The instructions for the installation
of this wood heater comply with the
above-mentioned standards. They
must be closely followed to eliminate
the risk of serious problems.
This Stûv unit must be installed by
aqualified professional.Improper
installation could result in a fire.
To reduce the risk of fire, read this
manual carefully before installing or
using the wood heater. If the installation
instructions are not followed and the
wood heater is improperly installed, the
risk of incident increases. This can result
in fire, property damage, bodily injury
and even death.
Keep these instructions for future
reference.
NOTE
We strongly recommend that our products be installed
and maintained by professionals certified by the
NZHHA (New Zealand Home Heating Association)
!
The marking label is located on the cap shown above. The
product serial number can be found on the riveted label above
the hearth. You will find all the information you need to register
your product.
Serial #
Details p.7
Marking
label
STÛV 21-NZ CERTIFICATION 5

1 .1 SAFETY INSTRUCTIONS
1. It is essential that the installation of
this Stûv be carried out by a qualified
professional.
2. The instructions for the installation of this
unit comply with the abovementioned
standards. They must be closely followed
to eliminate the risk of serious problems.
Any use contrary to the user manual is a
violation of federal law.
3. Improper installation of this Stûv unit
could result in a fire. To reduce the risk of
fire, follow the installation instructions to
the letter. Failure to follow the instructions
in this manual may result in property
damage, bodily injury or death.
4. This unit requires periodic inspection
and maintenance for proper operation
(minimum three times during the heating
season).
5. Any modifications made to this unit may
pose a hazard and will void the warranty.
Should repairs be necessary, use only Stûv
replacement parts.
6. Combustible materials such as firewood,
wet clothing, etc. placed too close to the
unit could catch fire.
7. We recommend storing solid fuels in a
clean, dry environment. Do not place this
type of fuel within the risk area or in the
loading/ash removal area.
8. Never leave the fireplace unattended
when the door is open.
9. Always close the door after the ignition
period.
10. Do not burn garbage, plastic, petroleum-
based materials, gasoline, rubber,
industrial solvents, flammable liquids
such as naphtha and motor oil, paper,
cardboard, wood extracted from salt
water and dried, painted wood or any
substance that emit dense fumes and
strong odours.
12.Make sure the home is equipped with a
smoke and carbon monoxide detector.
13. Do not connect this appliance to a
chimney flue serving another appliance.
14. This unit is hot when in use. Keep children,
clothing and furniture at a safe distance.
Touching the appliance while it is in
operation may cause burns.
15.Some parts of the fireplace can be very
hot when operated at rated capacity.
16. Do not allow the fireplace to heat to the
point where parts become red.
17. Do not use a grate or other methods to
elevate the fuel. Burn firewood directly on
the firebricks.
18. Do not overheat the unit. Attempting to
exceed the single burn rate of this unit
may permanently damage it.
19. Conduct regular maintenance of the
fireplace as previously recommended.
20. Never use chemicals or other liquids such
as gasoline, gasoline-based lantern fuel,
kerosene, charcoal liquid, or similar liquids
to start or feed a fire in the fireplace. Keep
all such liquids away from the unit while it is
in operation.
21. Do not install this unit in a mobile home.
22. The air inlets and outlets must remain free
of obstacles at all times.
23. The installation of the unit must comply
with all local and national regulations.
24. Inspect and sweep the chimney frequently.
In certain operating conditions, creosote
can build up quickly. Inspect and repair the
insert to ensure proper operation.
25. Objects placed in front of the unit must be
kept at a distance of at least 1200mm
from the unit’s glass face.
CAUTION
!
DOUBLE FACE 21-95 DF 21-125 DF
Maximum power 22kW 27kW
Performance 76%72%
Maxlog length 700mm 1000mm
Weight 310kg 310kg
Fuel SOFTWOOD
SINGLE FACE 21-95 SF 21-105 SF 21-125 SF 21-135 SF
Maximum power 15kW*19kW*21kW*20kW*
Performance 76% 84% 76% 76%
Maxlog length 700mm 800mm 1000mm 1000mm
Weight 292kg 224kg 305kg 286kg
Fuel SOFTWOOD
1.2 TECHNICAL SPECIFICATIONS
STÛV 21 -NZ CERTIFICATION 6
* These nominal heat outputs were obtained according to a European testing protocol.

COMPONENTS
1. LIST OF COMPONENTS ................................................................................................................ 9
2. CONVECTION KIT ........................................................................................................................ 12
3. OPTIONAL KITS .......................................................................................................................... 13

2.1 LIST OF COMPONENTS
SINGLE FACE (SF) DOUBLE FACE (DF)
Included
Option
Included
Option
2
5
99
2
STÛV 21 COMPONENTS 8
3
4
9
5
10
10
8
6
6
6
6
8
9
1
1

2.1 LIST OF COMPONENTS
21-95 SF 21-105 SF
STÛV 21 COMPONENTS 9
21-125 SF 21-135 SF
#DESCRIPTION PRODUCT
CODE INCLUDED OR OPTION QTY
1Fireplace 10021007 Included 1
2Extend Gather – 250mm 12015057 Included 1
3Hebel* Included 11
4Raised Door Kit 13007008 Included 1
5Frame (Thin) 13004110 Included 1
6Internal cold & hot air ducting kit 12002000 Included 1
7Internal vent Cover 200 x200mm 12001005 Included 4
8Air damper 150mm 120020022 Option 1
9Outside airtight box & ducting kit 1200203600 Option 1
10 Adjustable stand 1300200000 Option 1
#DESCRIPTION PRODUCT
CODE INCLUDED OR OPTION QTY
1Fireplace 10021012 Included 1
2Extended Gather – 250mm 12015011 Included 1
3Hebel* Included 12
4Raised Door Kit N/A
5Frame (Thin) 13004113 Included 1
6Internal cold & hot air ducting Kit 12002000 Included 1
7Internal vent Cover 200 x200mm 12001005 Included 4
8Air damper 150mm 12002022 Option 1
9Airtight box N/A
10 Adjustable stand 1300200000 Option 1
#DESCRIPTION PRODUCT
CODE INCLUDED OR OPTION QTY
1Fireplace 10021009 Included 1
2Extended Gather 120115047 Included 1
3Hebel* Included 11
4Raised Door Kit N/A
5Frame (Thin) 13004111 Included 1
6Internal cold & hot air ducting Kit 12002000 Included 1
7Internal vent Cover 200 x200mm 12001005 Included 4
8Air damper 150mm 12002022 Option 1
9Outside airtightbox & ducting kit 12002028 Option 1
10 Adjustable stand 1300200000 Option 1
#DESCRIPTION PRODUCT
CODE INCLUDED OR OPTION QTY
1Fireplace 10021010 Included 1
2Extended Gather – 300mm 12015009 Included 1
3Hebel* Included 12
4Raised Door Kit 13007002 Included 1
5Frame (Thin) 13004112 Included 1
6Internal cold & hot air ducting Kit 12002000 Included 1
7Internal vent Cover 200 x200mm 12001005 Included 4
8Air damper 150mm 12002022 Option 1
9Outside airtightbox & ducting kit 12002066 Option 1
10 Adjustable stand 13002000 Option 1
NOTE -* Not required for masonry installs
!

2.1 LIST OF COMPONENTS
FW1002103000 21-95 DF FW1002103100
21-95 DF 21-125 DF
DF
#
10 DESCRIPTION PRODUCT
CODE INCLUDED OR OPTION QTY
1Fireplace 10021011 Included 1
2Extended Gather - 300mm 12015009 Included 1
3Hebel ** Included 10
4Raised Door Kit* 13007002 Included 2
5Frame (Thin)** 13004112 Included 2
6Internal cold & hot air ducting kit** 12002000 Included 1
7Internal vent Cover 200 x200mm 12001005 Included 4
8Air damper 150mm 12002022 Option 1
9Outside airtightbox & ducting kit 12002066Option 2
10 Adjustable stand** 13002000 Option 1
11
Flat Gather for Steel Cladding * 12016009 Option 1
#DESCRIPTION PRODUCT
CODE INCLUDED
OR OPTION QTY
1Fireplace 10021008 Included 1
2Extended Gather- 250mm 12015057 Included 1
3Hebel ** Included 10
4Raised Door Kit * 13007008 Included 2
5Frame (Thin)** 13004110 Included 2
6Internal cold & hot air ducting kit** 12002000 Included 1
7Internal vent Cover 200 x200mm 12001005 Included 4
8Air damper 150mm 120020022 Option 1
9Outside airtightbox & ducting kit 12002036 Option 2
10 Adjustable stand ** 13002000 Option 1
11 Flat Gather for Steel Cladding * 12016051 Option 1
STÛV 21 COMPONENTS 10
NOTE -* Required for Stûv cladding installs
** Not required for Stûv cladding installs
!

2.3 OPTIONAL ACCESSORIES
AIRTIGHT BOX & OUTSIDE AIR KIT For outside air intake OUTSIDE AIR KIT WITHOUT AIRBOX
This part is inside
the fireplace
Follow the instructions supplied with the air damper.
Follow the instructions supplied with the air damper.
ADJUSTABLE STAND -13002000 To raise the unit AIR DAMPER -120020022 For outside air intake
1"
38mm"
1"
185mm
480mm
630mm
WIRE
100m
mTHREADED ROD
M10 x 3 12mm
HANDLE
25mm x 22mm
NUT
M10
M10
FINISHING WASHER
M5 int.
WASHER
Ø
150mm
Ø100mm
Ø
100mm
It is recommended for 21-95 DF and 21-125 DF models to
use a ø150mm outside air kit
STÛV 21-NZ COMPONENTS 11
21-95 700mm (12002036)
21-105 750mm (12002028)
21-125 952mm (12002066)
NOTE
Brackets are secured
over the base of the stand
for seismic restraint.
!
Follow the instructions supplied with the stand.
NOTE
Ducting pipe & external
vent comes with the kit
!

DIMENSIONS
1. SIMPLE FACE .............................................................................................................................. 12
2. DOUBLE FACE ............................................................................................................................. 13
3. CAVITY VENTILATION ................................................................................................................ 14
4. FLOOR PROTECTION ................................................................................................................ 15
5. FRAMEWORK CHARACTERISTICS ......................................................................................... 16
6. NON-COMBUSTIBLE MATERIAL CUT-OUT PLAN ................................................................... 17
7. AIR SUPPLY ................................................................................................................................ 20
8. FITTED TELEVISION ................................................................................................................... 22
9. SHELF MADE OF COMBUSTIBLE MATERIAL ......................................................................... 22
10. HEARTH EXTENSION ................................................................................................................ 23
11. RISK AREA ………………............................................................................................................ 24

3.1 SIMPLE FACE
FRONTVIEW SIDE VIEW TOP VIEW BASE VIEW
FRONT
VIEW A C D E F* G H J* L M N O P Q R S T U V W X Y Z
21-95 SF 950 590 1455 960 610 884 683 221 250 1430 770 615 381 130 176 281 95 926 702 302 395 202 75
21-105 SF 1050 496 1040 1060 515 984 469 201 200 1245 870 400 288 83 171 242 125 742 750 352 300 165 35
21-125 SF 1250 563 1295 1260 585 1184 603 221 300 1320 1070 535 354 83 171 242 125 742 750 352 300 165 35
21-135 SF 1350 500 1040 1360 515 1282 469 203 250 1245 1170 400 291 83 171 242 125 742 750 352 300 165 35
STÛV 21-NZ DIMENSIONS 13
* Masonry only

3.2 DOUBLE FACE
FRONTVIEW SIDE VIEW TOPVIEW BOTTOM VIEW
FRONT
VIEW AA* AB* AC D E F G H J L M N O P Q R S T U
21-95 DF 690 335 670 1445 960 610 884 683 201 250 1430 770 615 381 130 176 281 95 742
21-125 DF 690 335 670 1295 585 585 1184 603 221 300 1320 1070 535 354 83 171 242 125 742
STÛV 21-NZ DIMENSIONS 14
* Masonry only

3.3 Cavity Venting (REQUIRED)
STÛV 21-NZ DIMENSIONS 15
!NOTE
The cavity must be vented. 2 x
100mm dia.vents or equivalent.
Refer to Section 5. pg.46 for
chimney details.

3.4 FLOOR PROTECTION (REQUIRED)
3.4 FLOOR PROTECTION
2x 12mm cement boards, 1 x 20mm or 75mm Hebel are ALWAYS
MANDATORY under the fireplace (unless sitting directly onto concrete floor).
Appliance must sit a minimum of 150mm above the floor unless sitting directly
onto concrete floor.
For the Stûv 21, all materials installed under and in front of the fireplace must
be non-combustible to a height of 165mm see below for additional information.
1
2
3
Floor protection is MANDATORY. See adjoining section.
All components located in the hearth extension zone, for a height of 300mm from
the bottom of the glass must be in non-combustible materials.
See section : 3.10 Hearth projection
4
5
In order to be compliant with AS/NZS2918:2001 floor protection is mandatory.
The surface of the floor in front of the unit must be protected by non-combustible
floor protection (tile, plate, slab..) .
This protection must cover the width of the glass plus 200mm on each side of the
glass.
A non-combustible sealing strip must be placed through the whole length of
the junction between the cement board and the finished floor to avoid ember
projections.
Floor protection
STÛV 21-NZ DIMENSIONS 16
2
1
3
4
5
2 x 12 mm or 1 x 20mm noncombustible board (eg.Promatec H) , 75mm Hebel, 40mm Skamotec
!NOTE
If using optional steel stand, Hebel is not
required.Stand either sits on concrete
floor or non-combustible board.

3.5 FRAMEWORK CHARACTERISTICS 3.6 NON-COMBUSTIBLE MATERIAL
NOTE
!
NOTE
Framing is not always perfectly level. We
suggest that at least 5mm clearance be
added to the dimensions listed in the table.
!
MODEL A(mm) B(mm) C**
21-95 SF 1300 865 1800
21-105 SF 1400 800 1600
21-125 SF 1600 850 1705
21-135 SF 1700 800 1600
21-95 DF 1300 870 1800
21-125 DF 1600 870 1705 Width and depth is based on 75mm Hebel with 100mm side and rear air
gaps between appliance and Hebel.If using Skamotec reduce by 35mm. For
masonry installations 50mm air gap is required, reduce depth by 125mm and
width by 250mm.
MODEL D(mm) E(mm) F(mm) G(mm)
21-95 1300 850 884 683
21-105 1400 850 984 469
21-125 1600 850 1184 603
21 -135 1700 850 1282 469
** C Height Dimension
Height is based on appliance sitting
on 75mm Hebel base. Height also
varies according to the height of the
adjustable stand. Adjust to suit.
150mm
min.*
FG
E
min.
D min.
100
mm
100
mm
! IMPORTANT
Use 75mm Hebel and a 12mm non-combustible board to finish the opening after the
fireplace installation or other non-combustible materials may be used. The framing
and the wall finishing around the hot air grille boxes are required to be in non-
combustible materials. It is mandatory to affix 100mm of NCB around the hot air
grille.
C**
1980mm
min.*
combustible
* From the bottom of the unit
Without the adjustable stand
2 x cement
board 12mm
non-combustible
framing
non-combustible
cement board
STÛV 21-NZ DIMENSIONS 17
To be installed
after the fireplace
NOTE
!
Depth includes 100mm for trim frame finish at
front (both sides for DF). B dimension for DF is
outside to outside.
2 x 12 mm or 1 x 20mm noncombustible board (eg.Promatec H) , 75mm Hebel, 40mm Skamotec

STÛV 21-NZ Hebel (1200mm x 600mm x 75mm) or Skamotec (2020mm x 1200mm x 40mm)
MODEL No. of Hebel Panels Base * Sides Rear Top Face
21-95 SF 12 1300 x 865 1650 x 865 RHS
1650 X 865 LHS
1650 x 1150 1300 x 865 800 x 1150
21 -105 SF 12 1400 x 800 1425 x 800 RHS
1425 x 800 LHS
1425 x 1250 1400 x 800 800 x 1250
3.5 Hebel Cell Dimensions
21-95 SF 21 -105 SF
!
18
DIMENSIONS
No.of Skamotec panels
Is 50% less than Hebel
*Hebel base not required if
using the steel stand or the
appliance is sitting on
concrete.
NOTE

STÛV 21-NZ Hebel (1200mm x 600mm x 75mm) or Skamotec (2020mm x 1200mm x 40mm)
MODEL No. of Hebel Panels Base* Sides Rear Top Face
21-125 SF 16 1600 x 850 1555 x 850 RHS
1555 x 850 LHS
1555 x 1450 1600 x 850 1450 x 800
21 -135 SF 16 1700 x 800 1430 x 800 RHS
1430 x 800 LHS
1430 x 1550 1700 x 800 1550 x 800
21-125 SF 21 -135 SF
19
DIMENSIONS

MODEL No. of Hebel Panels Base Side Rear Top Face
21-95 DF 10 1300 x 870 1650 x 870 RHS
1650 X 870 LHS
1650 x 1150 1300 x 870 800 x 1150
21-125 SF 12 1600 x 870 1555 x 870 RHS
1555 x 870 LHS
1555 x 1450 1600 x 870 1450 x 800
STÛV 21-NZ Hebel (1200mm x 600mm x 75mm) or Skamotec (2040mm x 1220mm x 40mm)
3.5 Hebel Cell Dimensions
21-95 DF 21 -125 DF
!
20
DIMENSIONS