TermaTech TT20, TT20Bazic, TT20R, TT20S, TT20RS User And Mounting Manual
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User and mounting manual
TT20 + TT20Bazic + TT20R +TT20S + TT20RS + TT20SA
Please read also:
SUPPLEMENTARY INSTALLATION INSTRUCTIONS FOR
THE UK MARKET (last 6 pages)
CE approved according to: EN13240
DS (Danish Standard), DIN (Deutsche Industrienorm),
SINTEF (Norwegian Standard) and 15A (Austria)
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Congratulations on your new wood-burning stove.
We thank you for choosing a TermaTech wood-burning stove and
wish you many cosy and warm moments in the future.
Before using the stove you should read the user and mounting manual and also the SUPPLEMENTARY INSTALLATION INSTRUCTIONS
FOR THE UK MARKET (last 6 pages of this manual) so you are familiar with the legal requirements as well as the instructions regarding maintenance. By this it is ensured that the product works as it
is intended and you get the most out of your investment for many
years to come.
Installation/user instruction.................................. Page 3
Installation instructions in ”smoke control areas”.. Page 6
Lighting instruction................................................ Page 6
Maintenance........................................................... Page 8
Warranty/right to invoke lack of conformity.......... Page 9
Hints...................................................................... Page 10
Remedy of malfunctions / FAQ............................... Page 11
Technical specications.......................................... Page 13
Supplementary Inst. Instructions UK..................... Page 14
Drawing concerning smoke control kit.................... Page 22
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INSTALLATION INSTRUCTION
The stove is intended for ”intermittent combustion”. It is not meant to “heat over” at night. By following the instruction below in
“Lighting instruction” the best and most environmentally friendly
combustion is achieved.
The wood-burning stove is delivered ”ready for mounting” (the
exhaust branch may need to be screwed on) and must be connected
to the chimney with a smoke pipe. The connection between stove
and chimney must, as far as possible, be mounted in one straight
piece (with as few bends as possible) and as minimum horizontally,
but preferably rising from the stove to the chimney. Joints must be
tight. Remember that is has to be possible to clean the pipe (possibly with a cleaning hatch on the pipe).
Any unauthorised changes to the wood-burning stove will be viewed
as a structural change and thereby the warranty will be void and is
also a risk to safety.
In the door on your TT stove there is a spring that makes the door
close by itself when you let go of the handle.
This closing device is not a demand in the UK, Denmark and many
other countries and can therefore be removed. In the bottom hinge
the split with lentil head is removed which removes the tension from
the spring. This is most easily done by using a small screw driver
and side-cutting pliers.
National and European norms
The regulations in force at the time in question, including those
that refer to national and European standards, must be respected
when installing the wood-burning stove. Contact your local dealer
for further advice and guidance in connection with mounting. Notify your Hetas installer before you use your wood-burning stove. It
must be ensured that there is sufcient airow for the combustion
in the stove, so care must be taken concerning closely shut windows
and doors that may hinder the ow of air to the combustion.
Safety references
The surface of the stove as well as knobs, handle, window, smoke
pipe, etc. become very hot when the stove is in use. Touching these
parts without necessary protection (glove or other protective material) can lead to burns.
Remember to make children aware of this danger and make sure to
keep them away from the wood-burning stove when it is in use. For
this purpose TermaTech offers various grates for the protection of
children. (Ask your dealer)
Allowed in the wood-burning stove
Only use dry and clean wood for combustion in the wood-burning
stove. Maximum size of logs used in the stove is up to 30 cm in
length and 10 cm in diameter.
Only use dry wood. The burning of waste, synthetic materials and
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other treated or impregnated materials is not allowed as it is very
hazardous to the environment. Furthermore the stove and the chimney will be damaged by these materials. There is a danger of emission of unhealthy substances which can also lead to complaints from
neighbours.
Dry and clean wood has a maximum of 20% water which is achieved
with outdoor storage for between 1 year (soft wood) and 2 years
(hard wood). The wood must be in contact with air during storage so
the moisture can get out of the wood.
Firewood is not meant to ”burn overnight”. Never close off the air-
ow completely, instead let the re die out and light it again when
you need it.
We warn against closing off the airow completely. The wood-burning stove can only burn sensibly and environmentally friendly if
there is sufcient airow for the combustion.
Cleaning and checks
The wood-burning stove and the smoke pipe should be checked
and cleaned once a year. The chimney must also be cleaned by the
chimney sweep who will set the necessary intervals for cleaning /
sweeping.
The wood-burning stove should be checked by a professional about
once a year.
Ash build up/empty of ashpan
When the stoves have been in use maximum 10 times, it is required to check the ashpan for build up ashes. This is checked by
taking the ashpan out of the ash section, shake the ashpan so an
even layer is obtained. It is recommended that the ash level is not
more than half of the ashpans capacity. If the ash level is more than
half the capacity with an even layer, the ashpan is emptied by taken
the ash pan out of the ash section, place the ashpan lid on top of
the ash pan and empty it. Please be aware of embers in the ashpan,
so the disposal of ashes do not start a re! If the ashpan contains
embers the ash must be cooled of, until no embers is present in the
ashes.
If no checks of the ash build up in the ashpan is carried out, the
grate bars can be damaged and a hazard may occur!
Removal of ashes/charcoal from re-bed
Before light-up the stove, re-bed must be cleaned for ashes and
bricks of charcoal.
To do this, take the squared metal plate placed on the grate bars out
and clean the ashes and charcoals into the ashpan below.
Check for level in ashpan. If ashes is build up – please see item Ash
build up/empty of ashpan.
Combustion air
Combustion air is a precondition for a good and clean combustion.
The air is normally taken from the room where the wood-burning
stove is mounted, however in some circumstances it may be neces-
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sary to provide extra air in the room where the stove is placed. This
can e.g. be done by mounting an air valve in the room’s outer wall.
Air valves that supply necessary combustion air must be kept free
from blockage.
An exhaust fan in the same room or close to the wood-burning stove
can also have a negative effect on the combustion (at worst it can
lead to exhaust gases in the room, even with the stove door closed). Therefore, in the above case, the wood-burning stove and the
exhaust fan must never be in use at the same time.
The TT20 models are available with combustion air branch. Ask your
dealer for further information.
Adjustable feet:
The enclosed adjustable feet are to be used if the oor is uneven
or they can also be used to create the impression that the stove is
“ying” / “oating”
Metal plate on the grate:
Delivered with the stove is a metal plate with 4 holes. This plate is
to be placed on the cast iron grate. The plate secures the cleanest
combustion.
When you clean out ashes remove the plate from the grate and
sweep ashes down into the ashdrawer.
Distance to ammable material:
The stove must be put on a non inammable foundation. This foun-
dation must as a minimum cover 150 mm on each side of the stove
and 300 mm in front of the stove.
For inammable material like inammable walls made of wood, furniture, etc. the following minimum distances apply for safety reasons:
150 mm behind the stove to ammable material. (picture 2)
350 mm beside the stove to ammable material. (picture 2)
125 mm behind/beside if mounted 45° in a corner (picture 1)
1000 mm in front of the stove to ammable material.
Picture 1 Picture 2
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Distance to non-ammable materials:
It is recommended that there is a minimum of 80-100 mm behind
and beside the stove so the stove can dispose of the heat, this distance makes cleaning of and around the stove easier. In addition,
refer to the relevant Building Regulations.
Requirements for the chimney:
The chimney must be of sufcient height so the draught conditions
are okay the smoke does not bother anyone. Good draught in the
chimney is crucial to the stove working as intended and burns as environmentally friendly as possible. The height of the chimney must
typically be a minimum of 3.5 m from the top of the stove to the top
of the chimney.
The chimney must have a minimum internal diameter of Ø150mm.
The chimney must be equipped with an easily accessible cleaning
hatch. All joints and connections must be tight and the chimney
must be able to provide a draught of at least 1.2 mm water gauge
(12Pa).
It is possible to connect the wood-burning stove to chimneys that
are also used for other purposes. However, the concrete conditions
must be assessed by the tter and/or chimney sweep.
If the stove is to be mounted with back exit the following is done:
The round, welded or screwed cover plate at the back of the stove
is removed. Then the cut-out piece on the base-plate is removed
(the thin division plate). Be careful not to drop the piece between
the back plate and the stove! This is best done with a screwdriver /
chisel or pliers.
Finally the screwed smoke cover is removed and then the exhaust
branch can be mounted.
Remember to x the smoke cover at the top of the stove before use.
Demands for the oor:
The foundation must be able to bear the stove and possibly the
chimney’s weight.
INSTALLATION INSTRUCTIONS IN SMOKE CONTROL AREAS
Installation in a smoke control area requires the additional assembling / installation of the ”Damper control unit” which must be
installed by the installer. See drawing and picture on page 19
LIGHTING INSTRUCTION
The rst time:
The rst time the stove is lit is must be done gently as all the materials need to get use to the heat. The Senotherm varnish that the
stove is painted with will harden the rst couple of times the stove is
heated, and it may cause some odour nuisances. So make sure that
you have proper ventilation. Do not touch the painted surface, when
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the stove is hot. The painting has to harden up rst.
Use of the stove:
Below is the procedure used for testing/approval of the stove. It is
this procedure that will lead to the best combustion for the given
chimney. Firewood amount and damper setting can be adjusted
to the individual need for heating and the draught in the concrete
chimney.
On your new TT20 the work with controlling the air input has been
simplied so there is only one knob/damper (below the door).
Between the left position and the middle position you have the normal area where you control the air input.
No air input = left position and
maximum air input = middle position.
As help for lighting the control knob/damper can be pushed down a
little and pushed completely to the right. This start help adds some
air from below and ensures faster lighting. After a few minutes the
control knob/damper is returned to the normal position (between
the left and middle position).
Lighting and continuous ring at EN-testing
1. The ashpan must always be closed completely, also when you
light the re. The damper/start-up device can be opened (the knob
is pushed down and to the right) for a few minutes at lighting. Put
about 10 kindling sticks (dia. 2-3 cm) in the bottom of the stove,
laid in a criss-cross pattern as a log house. Put 2 relighters in the
middle and light them.
2. Leave the door ajar so there is an opening of about 2-3 cm.
Leave the stove like that for about 8-10 minutes before you close
the door completely. Stay by the stove as long as the door is ajar.
3. When the re has burned to embers (there are no more ames)
open the door gently so the ash is not whirled out through the door.
Gently spread out the embers with a poker so they are even.
4. Put 2-3 pieces of rewood in the stove, about 1.7 kg total. The
pieces are put in the bottom of the stove and parallel to the front of
the stove with equal distance to the stove’s sides and with mutual
distance of about 1 cm. The front piece is best lit if it has a split side
that is turned to the door and one in the embers. Close the door
completely immediately.
5. The knob/damper is opened so it is about 2/3 open (between
the left and middle position) and after about 2 minutes the damper
is set to about 1/3 open. How much the damper should be open
depends on the individual chimney’s draught, but the ames should
now stabilise to a calm re.
6. When the wood has burned to embers (after about 1 hour) you
start again from point 3.
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MAINTENANCE – always use original parts
Maintenance and cleaning of the stove should only be performed
when the stove is cold. The daily maintenance is limited, but once
a year the stove should get thorough maintenance. The combustion
chamber should be cleaned for ashes and soot and the door hinges
and the closing mechanism should be lubricated with copper grease.
The surface is maintained by brushing it with a soft, long-haired
brush or by using the vacuum cleaner with a brush.
The stove can also be dusted with a duster. Always remember: only
when the stove is cold.
Jointings can look okay, but they collapse under the heat and
thereby lose the ability to keep the stove sealed. Jointings should
be changed as needed as it is important to good combustion and a
clean window that the stove is sealed.
The insulation plates in the combustion chamber that are broken
or worn can easily be changed as they are loosely xed. The material used is called Vermiculite and is a porous, but very suitable
insulation material. It has no effect on the stove’s efciency that
the insulation cracks. However, it should be changed when the wear
surpasses half of the original thickness.
Painting the stove with Senotherm-spray can cover spots or small
scratches from kettles and such. Larger damages needs to be
ground with ne steel wool, vacuumed and then sprayed. The can
has to be shaken vigorously and then sprayed on at a distance of
15-20 cm. It is very important that the stove is not in use and com-
pletely cold before you use the spray due to the re hazard. In order
to keep the stove’s varnished surfaces looking nice for years to
come you should try to avoid touching the varnished surfaces when
the stove is hot. Make sure to have sufcient ventilation when using
spray paint.
Glass normally does not need any maintenance apart from cleaning. This is most easily done by using TermaTech’s glass cleaner.
Remember only to use glass cleaner when the stove is cold. Glass is
made of ceramic glass, be sure of environmentally disposal.
Original parts which need to be changed due to wear can be found
at your dealer. Because of t etc. only original parts from TermaTech
should be used.
Right to claim compensation for defective product is under
current law.
When stating deviations the use of the product must be suspended
immediately and the dealer must be contacted.
Chimney/Flues must be swept on regular occasions, as per manufacturers recommendations.
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