xeoos Twinfire Basic User manual

Twinfire
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Operating and Installation
Instructions
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Manufactured by:
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Specht Modulare Ofensysteme GmbH & Co. KG
Bahnhofstraße 2
35116 Hatzfeld-Reddighausen DE
T.+49 6452 92988-0
[email protected] www.xeoos.de
Imported by: Retrospective Design Ltd
T. 03 3373086
[email protected]
www.xeoos.co.nz
Models
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Basic
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Solo
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Pur
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Read this manual carefully and save the instructions.
Matten

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Table of Contents
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Description Page
General Information .........................................................................................3
Approvals and Basic Controls ........................................................................ 4
Installation of the Stove ................................................................................... 5
Heating Capacity and Space Requirements ............................................... 5
Outside Air Supply ..................................................................................... 5
Connection to the Chimney ......................................................................... 5/6
Technical Specifications and Clearances................................................... 7
Clearances .................................................................................................. 8
Permitted Fuels .............................................................................................. 9
Initial Use .........................................................................................................9
Starting the Fire............................................................................................ 10/11
Operation...................................................................................................... 12/13
Shutdown and Restart.................................................................................. 14
Appropriate Usage ....................................................................................... 14
Cleaning and Maintenance .......................................................................... 15
Empty Out Ash Pan.................................................................................. 15
Cleaning or Replacing the Glass Pane .................................................... 15
Cleaning the Chimney and Baffle Plates................................................... 15
Maintenance Activities ............................................................................... 15
Troubleshooting: Causes and Their Repair.................................................. 16
"Snap-Sounds" .......................................................................................... 16
Twinfire Replacement Parts ......................................................................... 17
Twinfire Warranty...........................................................................................17

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General Information
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Thank you very much for choosing the xeoos Twinfire®System, which is a remarkable product
that utilizes two fires to create a most efficient product and it is easy to operate.
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Specht from Germany has developed this stove with care and is happy to provide you with an
exceptionally high-quality and ecological product.
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The purpose of this manual is to guide and instruct Twinfire® stove owners in proper burning
to achieve environmentally friendly combustion and to minimize the risk of incorrect use
and operation of the stove.
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Please read these operating instructions carefully before the first initial use. It contains important
and beneficial information for the operation of your new Twinfire®stove. Failure to follow
instructions may result in property damage, bodily injury, or even death. It is therefore very
important to read this entire manual, and save the instructions. Correct operation is also vital
with regard to our applicable warranty terms.
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Before you install your stove we recommend that you contact your dealer or local
Building Inspector to help you follow the rules and regulations in your local area. We
also recommend that your dealer check the stove before installation for completeness
and functionality.
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If your stove is not installed properly, a home fire may result. To reduce the risk of fire, please
ensure that the fire is installed only by a professional installer. Contact local building or fire
officials about restrictions and installation inspection requirements in your area. Not approved
for use in a mobile home.
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We wish you and your friends many enjoyable and comfortable hours with your xeoos Twinfire®.
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Follow the manual during installation and operating of the stove.
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Take particular note of this symbol throughout the manual.
This indicates special attention.
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[Type!text]![Type!text]![Type!te xt]!
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Approvals and Basic Controls.
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The patented Twinfire®system of xeoos® is based on the principle of gasification with the use of
the furnace. The Twinfire®models have past CM1 (Canterbury Method 1), AS/NZ 4012:4013
and show compliance with AS/NZ 2918.
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1. The door handle (1) has two functions. Firstly it ensures that the door is safely
locked during use and secondly it controls the ‘downdraft’ function.
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2. The primary air control (2), located at the back left hand side of the unit can be pushed
fully back for high output and pulled forward for low heat output. It is not designed for
setting other than High or Low.
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2.!Primary!air!control.!!
Fully!pushed!back!for!
High!setting.!!Fully!
pulled!forward!for!
Low!setting.!
1.!!Door!handle.!!Fully!
up,!door!is!open.!!
Handle!at!45°!angle,!
wood!heating!up.!!
Handle!fully!down,!as!
shown!in!image,!fire!in!
downdraft.!!Please!
refer!to!page!11!for!
images.!
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Upper!chamber.!!This!is!where!
your!fire!runs.!
Lower!chamber.!!For!
secondary!burning!and!
catchment!of!ash!only.!!
Under!no!circumstances!must!
any!fuel!be!placed!in!this!
location.!
Thermometer!is!
located!in!front!of!
flue.!!This!is!used!to!
determine!when!unit!
should!be!put!in!
downdraft.!

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Required Installation Components
A
Chimney cap
B
Triple skinned chimney
C
Storm collar
D
Roof flashing
E
Ceiling support box
F
Chimney connector pipe
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Installation of the Stove
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Heating Capacity and Space Requirements
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The room-heating capacity is highly dependent on the room’s location and interior as well as on
the operation method. In a newer air-tight building be prepared to calculate your heat demand.
In older buildings, the nominal heating capacity of approximately 27kBTU’s (8 kW’s) heats an
area from 430 - 1,076 ft2 (40 -100 m2) based on various conditions.
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Outside Air Supply
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Ensure that there is sufficient combustion air in the room in which the stove is installed, and that
there is an adequate supply of combustion air to the stove, which can be sourced from another
room or from an outside air supply. Rooms with negative pressure (e.g. use of exhaust fan) or
newer air-tight buildings are particularly suited for air supply from outside..
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Connection to the Chimney
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The Twinfire stove can only be flued from the top outlet in Clean Air
Zones. A rural, rear flued model can be made available.
The diameter of the stove pipe is 6” (15.2 cm). Do not use
connector pipes and chimneys with smaller clearance diameters or
less than 24 gauge steel (0.55mm). It must be installed using an
AS/NZS 2918:2001 approved chimney system or a code-approved
masonry chimney with a flue liner.
The chimney must extend through the roof for an assembled length
not less than 4m and be 600mm above any high section of roofing or
adjacent obstruction. If there is no obstruction or ridge within 3m the
flue must not be lower than the point at roofline 3m horizontal to the
flue center (see detail)
The condition of the chimney and height is very important. We
suggest a total minimum height of 4.8m where practical.
To reach the rated heat capaci-
ty, the minimum delivery pres-
sure of the chimney must be 10
to 15 Pa (1.0 to 1.5 mm WC).
Follow the rules and regula-
tions in your local area.
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IT IS VERY IMPORTANT TO ENSURE THAT YOUR CHIMNEY HAS A GOOD
DRAFT. YOUR DEALER OR CHIMNEY SWEEP WILL BE ABLE TO GUIDE
AND ADVISE YOU ON YOUR CHIMNEY CONDITIONS.
A"
D"
C"
B"
B"
E"
F"

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Each chimney connector or chimney connector section must
be installed to the stove flue collar and to each other with the
male (crimped) end toward the stove. This prevents any
amount of condensed or liquid creosote from running down the
outside of the pipe or the stove top. The flue collar connector
should be secured with approved fasteners to ensure that the
sections do not separate. For the best performance the
chimney connector should be as short and direct as possible,
with no more than two 90° elbows.
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DO NOT CONNECT THIS STOVE TO ANOTHER CHIMNEY FLUE OR AIR
DISTRIBUTION DUCT OR ANY SYSTEM SERVING ANOTHER APPLIANCE.
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For venting vertically into a masonry chimney, single wall stainless steel (at least 24 gauge and
6” in diameter) must be used in the room where the stove is installed. Refer to the manufactur-
er’s instructions for the connection to the listed chimney.
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RURAL ONLY. For rear venting or other not listed configurations, consult the local building
codes.
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If the chimney connector is fitted with a
baffle, it must be manually operated, visi-
bly placed for ease of use, and must not
close completely. Consult your chimney
expert if you have any questions. Make
sure that there is easy access to the
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Chimney
Flue
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Masonry
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Min.
2”(5cm)
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Connector Pipe
18”(46cm)
below
ceiling
chimney cleanout door. Floor protection is
required under the chimney connector and
2" (51cm) beyond each side. Baffles
should only be fitted to fix situations
relating to over drawing.
Insulated
Chimney
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Min.
2”(5cm)

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Technical Specifications
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Twinfire
Description
Data
Heating:
Optimal heat output
27kBTU (8kW)
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Heat output range (minimum-
maximum)
14-41kBTU (4-12kW)
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Heating capacity range
430-1,076ft2 (40-100m2)
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Efficiency
69%*
Stove dimensions:
Basic
Solo
Matten
Pur
Height
48” (121cm)
50” (127cm)
49” (125cm)
51” (129cm)
Width
18.5” (47cm)
18.5” (47cm)
61” (155cm)
19” (48cm)
Depth
16” (40cm)
16” (40cm)
16” (40cm)
16” (40cm)
Weight:
469lbs. (213kg)
442lbs. (201kg)
784lbs. (356kg)
513lbs. (233kg)
Venting:
Stove pipe:
Basic
Solo
Matten
Pur
Diameter of the
stove pipe
6” (15cm)
6” (15cm)
6” (15cm)
6” (15cm)
Top vent – center of
pipe to stove back
8” (20cm)
8” (20cm)
8” (20cm)
8” (20cm)
Outside air supply:
Diameter of the air supply
connector
4” (10cm)
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Location of air supply outlet
Under the lower firebox at the
center
*When tested to CM1, Canterbury Method 1.4

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Clearances
Minimum Clearances:
Parallel Position Clearance Distance
Position
Clearance
(mm)
(A) Rear
100
(B) Side
200
(C) Floor
protector
140
(D) Front
floor
protector
300
(E)
(F)
(G)
460
760
800
Corner Position Clearance Distance
Position
Clearance
(mm)
(A)
Corner
200
(B) Front
460
(C) Floor
protector
140
(D) Front
floor
protector
300
(E) Rear
floor
protector
100
(F)
1035
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USE FLOOR PLATES UNDER THE STOVE MADE WITH NON-
COMBUSTIBLE FIRE-RESISTANT MATERIALS SUCH AS STEEL, TILE, OR
GLASS. BEFORE INSTALLATION, MAKE SURE THE FLOOR CAN CARRY
THE WEIGHT OF THE STOVE.
A
D
A
D
C
C
E
C
C
B
B"
F"
E"
F"
G"
F!

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Wood type
Heat value
(kWh/kg)
maple, elm, willow
4.1
poplar, beech
4.2
oak, ash
4.2
birch
4.3
pine, fir
4.4
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Permitted Fuels
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Only natural, air-dried firewood may be burned. Under no circumstances should rubbish, other
fuels, and treated or damp wood be burned.
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NEVER BURN IMPREGNATED OR PAINTED WOOD, LAMINATED PLASTIC,
PLYWOOD, CHIPBOARD, GARBAGE, FLAMMABLE FLUIDS SUCH AS
GASOLINE, NAPHTHA, ENGINE OIL, REFUSE, MILK CARTONS, OR
PRINTED MATTER. USE OF SUCH MATERIALS WILL INVALIDATE YOUR
WARRANTY, AS THIS MAY EMIT TOXIC, CORROSIVE AND HAZARDOUS
FUMES WHEN BURNED. THEY MAY ALSO CAUSE A BUILD-UP OF THE
TOXIC GAS DIOXIN, WHICH IS DAMAGING TO THE STOVE AND THE
ENVIRONMENT.
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We recommend that firewood with less than 20 % moisture
content be burned. Wood is an environmentally friendly and
widely available solid fuel. To ensure that the wood has a mois-
ture content of 20 % or less, store it under a roof or protected
against heavy rain for a year or two. Use of wood with greater
moisture content can cause soot and creosote in the pipe and
chimney. This can lead to chimney fires.
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Combustion involves conversion of the fuel from solid form
into gases, water vapor, and charcoal. The heating value is an
expression of the content of combustible gases. All wood has
roughly the same heating value per kilogram. The lighter the
wood, the more that must be used to achieve the same heat
value as the heavier species of wood. Thus, preferred wood
types in New Zealand are softwoods.
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Initial Use
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BEFORE STARTING UP THE STOVE, MAKE SURE TO REMOVE THE
PACKAGING MATERIAL.
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Although the Twinfire is carefully cleaned and inspected several times, remainders of the sand
blasting or shavings of the Vermiculite plates in the fireplace can stay. We suggest before use
that you vacuum and wipe clean all surfaces with a soft, dry cloth to avoid baking on film or dust
particles. Please note also that the stove paint will harden during the first few initial fires. This
means that the stove may generate some smoke and an odor of paint, which will dissipate after
about an hour’s operation. It is a good idea to insure effective ventilation during this phase. Also,
avoid touching the stove during the curing process.

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Starting the Fire
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Fill
Heat up
Switch to
Control of power output
[Upper combustion chamber]
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Twinfire
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Starting your Twinfire®is just like starting any other log burner, it just uses smaller loads! Start with two small
logs, each one to be placed on either side of the central dome, each around 250g. Next place the kindling
load in a criss cross pattern on top, around 500g in total. Kindling plus small logs, yields an easy start.
Kindling and two small logs should total around 1kg. For safety reasons fluid fuels are categorically
not allowed to be used. We recommend the use of fire lighters for the most effective start, when
used as recommended.
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To start the fire the control elements have to be put in the following positions [ "]:
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%Door handle: "Heat up" 45° angle.
%Twinfire air control: High (push all the way to the back).
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Attention! The surface of the stove could become very hot.
As soon as the kindling has turned into a stable flame, typically after 5 minutes, additional
wood can be put into the stove. This next load should be limited to two or three small pieces,
totally 1.2kg, in the upper combustion chamber. Until the necessary basic bed of fire is
reached, the Twinfire handle has to remain in the "Heat up" position and the air control knob
fully open [ "].
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Once the thermometer reads 90°C (please see image on next page) a blaze should have
ignited so you can switch the handle to the "Twinfire®" position [ #] The combustion occurs
primarily downwards through the flame. Attempting to engage Twinfire®before the thermometer
reads the correct temperature may cause unnecessary pollution emission and slow the Heat Up
phase of the Xeoos®.

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Note: Do not place the fire into ‘downdraft’ mode unless
the thermometer is reading 90°C or more. Failure to
observe this instruction will lead to unneccessary
pollution which in turn will have a detrimental effect on
your fire appearance and cause soot build up.
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Once the lower chamber flame has a continuing flame, the output can now be regulated with the
air control as necessary. The primary air supply should be either fully back for high output and
when introducing new fuel, or fully forward when in low setting. The control should not be placed
in any position other than fully forward or fully back.

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Operation
Door Handle Function
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For continued operation, additional wood fuel should be added to the fire when the flames in the
upper combustion chamber have died down, but there are still enough hot embers available.
Open the door slowly to prevent the flames and ashes from falling out. When opening the
door the integrated door handle prevents the buildup of excessive smoke into the living
space. The first 45° of the movement of the handle will turn the stove into the heating up
mode. If you move the handle another 45° into the vertical position the door unlocks.
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Door unlocked !
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Heat up"
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Handle functions: Twinfire #
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Again please open the stove door with caution - this enables a stable flow and avoids disruptive
turbulence in the fire chamber. After loading the wood, close the door, and when there is enough
flame, adjust the handle to the "Twinfire®" position.
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Caution: Do not strike or slam the glass door when closing.
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If the Twinfire®stove is operated continually at a high output rate in the position
of "heat up" the danger of overheating exists. The handle setting serves, as
the name states, exclusively for initial heating up the stove.
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If the fire has burned down too far, put more fuel on the fire and leave the handle in the position
of "Heat up" until more of a flame develops. If the firebox and chimney are still warm, it normally
takes only a few minutes to restart.

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Air Control Handle
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The stove’s output is regulated through the Twinfire®air control; to reduce the heat output tilt
the knob forward; to increase the heat output tilt the knob backward. The stove’s heating
output is mainly determined by the amount of burned wood.
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ALSO NEVER ADD MORE THAN 3 POUNDS (1.5 KG) OF WOOD (ABOUT 2-3
LOGS). OTHERWISE THE STOVE COULD GET OVERHEATED, WHICH
CAN CAUSE IRREPARABLE DAMAGE.
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THIS KIND OF DAMAGE IS NOT COVERED BY WARRANTY.
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If there is a situation of a poor draft, the stove should not be reduced to the lowest setting of the
Twinfire®air control, or heating up will take longer. Place small pieces of wood until the
chimney is well heated. This can take up to one to two hours. The combustion is optimal when
the flames glow light yellow to blue. If too high, use fewer and larger pieces of wood and adjust
the air con- trol. Caution: Open the door only for short periods of time.

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Shutdown and Restart
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To shut down the stove, let the fire extinguish and leave the stove closed until it has cooled
down.
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If the stove has not been in operation for an extended period, we recommend that you pre-heat
the stove and the chimney by burning a couple of sheets of newspaper first. This improves the
draft of the chimney during the heating up phase. Also insure that the chimney is free of dirt,
birds nest or anything else.
Creosote - Formation and Need for Removal - When wood is burned slowly, it produces
tar and other organic vapors, which combine with expelled moisture to form
creosote. The creosote vapors condense in the relatively cool chimney flue
of a slow-burning fire. As a result, creosote residue accumulates on the flue
lining. When ignited, this creosote makes an extremely hot fire. The chim-
ney and chimney connector should be inspected at least once every two
months during the heating season to determine if a creosote buildup has
occurred. If creosote has accumulated, it should be removed to reduce the
risk of a chimney fire.
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Appropriate Usage
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- The surface is hot while in operation. Keep children, clothing and furniture away. Con-
tact with the hot surfaces may cause skin burns.
- Do not store solid fuel within space heater installation clearances or within the area
for loading and ash removal.
- Never use gasoline, gasoline-type, lantern fuel, kerosene, charcoal lighter fluid, or
similar liquids to start or ´freshen up` a fire in this stove. Keep all such liquids well
way from the stove while it is in use.
- Do not place candles or other materials in or on the stove, which melt or burn at high
temperatures (e.g. paper, plastics). The melted material cannot be removed and can
cause permanent odors. Also, the burnt material could cause a house fire.
- DO NOT use a grate or andirons to elevate the fire – build it directly on the hearth.
- Burn a little at the time. Add fuel at regular intervals and run the stove over a period of
several hours if possible. The stove should be observed during operation.
- The Twinfire®stove is not suitable for cooking food.
- During room-air operation, the opening under the stove has to be free at all times.
During operation with external air supply, insure that the air supply is always free and
has not been cut off.
- The stove may not be opened with any tools or pokers.
- The ash pan needs to be emptied when the ash reaches the upper limits of the pan.
- Make no adjustments to the stove; otherwise the license and warranty are void.
- To replace broken or damaged parts, purchase authentic items through your dealer.

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Cleaning and Maintenance
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Cleaning the Twinfire®stove is periodically necessary. Efficient combustion and optimized
air through ducts can ensure the upkeep of your product. Insure that cleaning and
maintenance have been done correctly and be sure to inspect your fire chamber. Empty the ash
pan regularly.
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Empty Out Ash Pan
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To remove the ashes first let stove cool down. Then open the combustion chamber door and pull
out ash pan. We recommend that you always leave a layer of ash approximately 1 inch (2 cm)
deep in the upper fire chamber, since this allows better combustion during the heating.
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Disposal of Ashes - Ashes should be placed in a metal container with a tight fitting lid.
The closed container of ashes should be placed on a noncombustible floor or on
the ground, well away from all combustible materials, pending final disposal. If the
ashes are disposed of by burial in soil or otherwise locally dispersed, they should
be retained in the closed container until all cinders have thoroughly cooled.
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Cleaning or Replacing the Glass Pane
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The construction of the fire chamber glass makes it necessary to be cleaned after long usage or
when improper fuel is burnt. If there is soot build up, we recommend using a glass cleaner or dip
a damp paper towel into the cool ashes to clean the glass plate. Remember to clean the glass
ONLY when the stove is cold. If the glass breaks, it is necessary to replace the glass (use only
approved Twinfire®glass and should be done by an approved professional) and gasket.
First carefully unscrew and remove the top and bottom brackets, remove the old and insert
the new glass and gasket, and replace the brackets.
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Do not use any sharp articles or abrasive cleaners to clean the glass plate, in
order not to damage the glass. Do not use aggressive cleaning agents for
cleaning the glass plates, since sometimes they can cause damage to the
gasket around the plate.
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Cleaning the Chimney and Baffle Plates
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The chimney and basic servicing should be cleaned annually by a qualified Chimney
Sweep. The stove and baffle plates (vermiculite-plates) have to be removed cautiously to avoid
breakage. Also you can easily do the cleaning of the supply air openings in the upper combus-
tion chamber and the smoke gas openings in the lower combustion chamber yourself with a va-
cuum cleaner from time to time. Vacuum the port in the double bottom. Also clean the grate by
knocking off the carbon crusts.
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Maintenance Activities
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Door-hinges and locks need occasional care. As needed the brass bearing on the door handle
can be greased with heat-resistant graphite or Teflon-grease. Also, you can obtain spray cans
from your dealer to touch-up scratches in the paint.

Troubleshooting: Causes and Their Repair
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Problem
Cause
Remedy
Wood catches fire
very slowly or not
at all
-none or too little combustion air
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-logs are too thick
-wood is too moist
-blockage in grate
-completely open the air control
and put the handle into position
"heat up"
-use smaller diameter logs
-use drier wood
-jiggle grate with poker and
remove debris
fire goes out or
smolders
-none or too little combustion air
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-logs are too thick
-wood is too moist
-completely open the air control
and put the handle into the
"heat up" position.
-use smaller diameter logs
-use drier wood
soot films on the
glass plate
-wood is too moist
-draft of the chimney is too strong
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-primary air supply is incorrectly ad-
justed
-stove is leaking
-fuel quantity is too small
- use drier wood
-adjust the damper (more
closed)
-contact the dealer
- add fuel (more wood)
wood burns down
too quickly
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-primary air supply is incorrectly
adjusted
-logs are too small
-reduce the primary air
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-use greater diameter logs
smoke comes out
into the room when
the door is opened
-chimney not the right size for the
firebox
-other devices (e.g. exhaust fan)
produces negative pressure in the
area
-Door opened too quickly
-contact the dealer
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-check other devices / contact
the dealer
-Open door slowly.
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"Snap-Sounds"
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This effect is normal for stoves. It arises from the expansion of metal pieces. The tensions which
occur with the heating up and cooling down between the different warm stove pieces adjust
themselves in this process.

Twinfire Replacement Parts
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%Vermiculite upper combustion chamber - 8 KW
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%Vermiculite lower combustion chamber - 8 kW Basic or Pur
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%Twinfire door glass
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%Twinfire gasket
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%High temperature glue for sealing
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%Teflon – lubricant
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%Spray paint can - anthracite, black, silver, gray
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%Top plate conversion kit - top vent à back vent (without a hole)
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%Top plate conversion kit - back vent à top vent (with a hole)
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Twinfire Warranty
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The Twinfire stoves are built to the highest quality standards. They come with a 5-year warranty,
which covers defects in materials or workmanship.
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The warranty does not cover the following:
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%Incorrect installation of the stove (not according to the Operating and Installation
Manual).
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%Rust or inappropriate treatment (such as scratches on the stove body, etc.).
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%Improper operating or mishandling of the stove.
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%Normal wear of parts that are in contact with the fire, e.g. Vermiculite plates and door
gaskets.
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%Costs of transport, assembly and disassembly, and glass breakage or cracks.
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%Any structural changes to the Twinfire stove are not covered by warranty.
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%Damage through the use of fuels which are not mentioned in the operating instruction.
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%Use non-authentic spare parts that are designed for the Twinfire stove.
%Damage to the unit caused by leaving the handle in ‘up’ position for longer periods of
time than required.
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Use only authentic Twinfire stove spare parts, and contact the dealer with any warranty issues.