Grill'D Cometa Vega Series User manual

Compliance with this Manual guarantees
excellent quality and maximum service
life of the Grill’D brand heaters.
Read the manual carefully before
commencing installation and operating
the heater. Keep it for future use.
Installaon and
Operaon Manual
Congratulations on your choice - the choice of high quality heaters.
Cometa 180 Vega Short
Cometa 180 Vega
Short Stone
Cometa 180 Vega
Short Window Max
Cometa 350 Vega
Window Max
Cometa 180 Vega Long
Cometa 180 Vega Long Stone
Cometa 180 Vega
Long Window Max
Cometa 350 Vega
Window Max Stone
Cometa 180 Vega Window
Cometa 180 Vega Window Stone
Cometa 180 Vega Short
Window Max Stone
Cometa 180 Vega Long
Window Max Stone
Cometa 350 Vega
Short Window Max
Cometa 350 Vega Short
Window Max Stone

2
CONTENTS
Technical data 3
1. GENERAL DATA 7
2. OPERATION MANUAL 7
2.1. Safety measures 7
2.2. Heater design and operation 7
2.3. Heater commissioning 8
2.4. Combustion material 9
2.5. Stones for stone heater 9
2.6. Heater operation 10
2.7. Water in the sauna 10
2.8. Technical maintenance 11
2.9. Typical faults and troubleshooting methods 12
3. INSTALLATION MANUAL 13
3.1. Before installing the heater 13
3.2. Heater installation 16
4. WARRANTY 18
APPENDIX 1. Heater dimensions 19
APPENDIX 2. Heater structural elements 26
APPENDIX 3. Internal design and operation of heaters 27
APPENDIX 4. Heater parts installation 28
APPENDIX 5. Scope of supply 42

3
Specifications UOM
Cometa 180 Vega Cometa 180 Vega Stone
Short Long Window Short Long Window
Steam room volume m310-24 10-24
Heater flue outlet connection diameter mm 115 115 Mass of stones in the outer stone heater kg max 75 75
Mass of stones in the inner stone heater kg max 30 30
Stone size mm 70-150 70-150 Maximum firewood length mm 390 390 Firewood diameter mm 80-150 80-150 Mass kg 75 77 92 151 153 166
Width mm 555 555 650 565 565 650
Height mm 1070 1070 1070 1070 1070 1070
Depth mm 650 775÷870 800 655 780÷875 805 Fuel -Wood Wood Safe distances to combustible materials
From top (from the connection pipe)
mm
1000 1000
From the side 500 500 From the back 500 500 From the front 800 800
Table 1. Technical data Note: heater dimensions are specified in Appendix 1

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Specifications UOM
Cometa 180 Vega
Window Max
Cometa 180 Vega
Window Max Stone
Cometa 350
Vega
Cometa 350
Vega Stone
Cometa 350
Vega Window
Max
Cometa 350
Vega Window
Max Stone
Short Long Short Long Window
Max
Window
Max Short Short
Steam room volume m310-24 10-24 25-45 25-45 25-45 25-45
Heater flue outlet connection diameter mm 115 115 130 130 130 130 Mass of stones in the outer stone heater kg max 75 75 100 100 100 100 Mass of stones in the inner stone heater kg max 30 30 40 40 40 40 Stone size mm 70-150 70-150 70-150 70-150 70-150 70-150 Maximum firewood length mm 390 390 490 490 490 490 Firewood diameter mm 80-150 80-150 80-150 80-150 80-150 80-150 Mass kg 76 85 150 159 125 214 111 200
Width mm 555 555 565 565 650 650 555 580
Height mm 1070 1070 1070 1070 1045 1045 1045 1045
Depth mm 675 780÷875 680 785÷880 1060 1065 890 895 Fuel -Wood Wood Wood Wood
Safe distances to combustible materials
From top (from the connection pipe)
mm
1000 1000 1000 1000
From the side 500 500 500 500
From the back 500 500 500 500
From the front 800 800 800 800
Table 1. Technical data Note: heater dimensions are specified in Appendix 1

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Specifications UOM
Cometa 180 Vega Pro Cometa 180 Vega Stone Pro
Short Long Window Short Long Window
Steam room volume m310-24 10-24
Heater flue outlet connection diameter mm 115 115 Mass of stones in the outer stone heater kg max 75 75
Mass of stones in the inner stone heater kg max 30 30
Stone size mm 70-150 70-150 Maximum firewood length mm 390 390 Firewood diameter mm 80-150 80-150 Mass kg 105 110 115 181 186 189
Width mm 555 555 650 565 565 650
Height mm 1070 1070 1070 1070 1070 1070
Depth mm 650 775÷870 800 655 780÷875 800 Fuel -Wood Wood Safe distances to combustible materials
From top (from the connection pipe)
mm
1000 1000
From the side 500 500 From the back 500 500 From the front 800 800
Table 1. Technical data Note: heater dimensions are specified in Appendix 1

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Specifications UOM
Cometa 180 Vega
Window Max Pro
Cometa 180 Vega
Window Max Stone
Pro
Cometa 350
Vega Pro
Cometa 350
Vega Stone
Pro
Cometa 350
Vega Window
Max Pro
Cometa 350
Vega Window
Max Stone Pro
Short Long Short Long Window
Max
Window
Max Short Short
Steam room volume m310-24 10-24 25-45 25-45 25-45 25-45
Heater flue outlet connection diameter mm 115 115 130 130 130 130 Mass of stones in the outer stone heater kg max 75 75 100 100 100 100 Mass of stones in the inner stone heater kg max 30 30 40 40 40 40 Stone size mm 70-150 70-150 70-150 70-150 70-150 70-150 Maximum firewood length mm 390 390 490 490 490 490 Firewood diameter mm 80-150 80-150 80-150 80-150 80-150 80-150 Mass kg 106 115 180 189 123 212 109 198
Width mm 555 555 565 565 650 650 555 580
Height mm 1070 1070 1070 1070 1045 1045 1045 1045
Depth mm 675 780÷875 680 785÷880 1060 1065 890 895 Fuel -Wood Wood Wood Wood
Safe distances to combustible materials
From top (from the connection pipe)
mm
1000 1000 1000 1000
From the side 500 500 500 500
From the back 500 500 500 500
From the front 800 800 800 800
Table 1. Technical data Note: heater dimensions are specified in Appendix 1

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1. GENERAL DATA
IMPORTANT! Carefully select the heater for the volume of the room. A heater with a small
heang capacity will require a more intensive heang during a longer me, which will
shorten its service life.
Kindly note that:
When selecng a heater, it is necessary to give consideraon to the material of the walls
and the ceiling of the room of installaon. If they are not heat-insulated (concrete, brick,
glass, etc.), a heater of greater power is required, and addional 1.2 m3 of volume should be
added per each square meter of surfaces made of such materials. If the walls are made of
massive logs, the design cubing shall be increased by a factor of 1.5.
Example 1:
A sauna room volume equals 10 m3. The sauna has a 3-m wide and 2-m high brick wall. Cal-
culaons: 10+2х3х1.2 = 17.2. Consequently, this room is equivalent for a sauna room with a
volume of approximately 17 m3.
Example 2:
A sauna room volume equals 10 m3. The sauna has a 0.8-m wide and 2-m high glass door.
Calculaons: 10+2х0.8х1.2 = 11.9. Consequently, this room is equivalent for a sauna room
with a volume of approximately 12 m3.
Example 3:
A sauna room volume equals 10 m3. The sauna walls are made of massive logs. Calcula-
ons: 10х1.5=15. Consequently, this room is equivalent for a sauna room with a volume of
approximately 15 m3.
2. OPERATION MANUAL
Read this manual carefully before commencing installaon and operang the heater. Keep it
for future use.
2.1. Safety measures
IMPORTANT! Consult your doctor about your health-related limitaons. Bear in mind that
prolonged exposure to hot sauna environment can be harmful. Avoid being in a heated
sauna and steam bathing under the inuence of alcohol, drugs, medicaons, etc. Do not
sleep in the heated sauna. Take care while moving around in the sauna as benches and
oor can be wet and slippery.
IMPORTANT! Consult your pediatrician whether vising sauna and steam bathing is al-
lowed to your children. Do not let your children approach the heater. Do not leave children
as well as handicapped people and people with fragile health unaended in the sauna.
IMPORTANT! Be careful with hot parts of the heater and stones, and also avoid pung
steam on if you or someone else is near the stone heater, as it can cause burns.
IMPORTANT! Do not use the steam room or the heater surface to dry clothes or other
objects to prevent re.
Note: metal surfaces of the heater can corrode in coastal and humid climate.
2.2. Heater design and operaon
Note: overall view and locaon of the heater main elements are shown in Appendix 2. Internal
design and operaon of the heater is shown in Appendix 3.
Firebox as well as other crical elements of the heater, is made of rolled steel of the required

8
thickness that can withstand any esmated loads. High-alloyed corrosion-resistant steel is
used for the above heater elements in Pro models.
The eecve design for heang up the stones and the steam room is due to numerous bends,
heat-conducng structural elements, which increase the heat dissipaon area. Also, air con-
vecon between the heater rebox, radiators, and protecve shield plays a signicant role.
Heater models of Long version are equipped with extended heang ue that allows the heater
to be red from the adjacent room. Some of the Grill’D heater models of Long version are
equipped with a telescopic heang ue, which allows adjusng the length of the ue depend-
ing on the wall thickness.
Note: dimensions of heaters with a telescopic heang ue are shown in Table 1 and Appen-
dix 1 as a range of values.
All heater models can be oponally equipped with special reinforcing devices (refer to Appendix
4) made of heat resistant high-alloyed corrosion-resistant steel, that enhance combuson and
addionally protect the heater rebox from destrucon due to exposure to high temperature.
The devices have ducts for supplying addional combuson air, and when it enters the rebox,
the air passes parally above the re into its upper part, where post-combuson of ue gases
occurs. Addional heat is generated during this process, thus enhancing the heater’s eciency.
There is a grate at the boom of the heater (refer to Appendix 4). Ash falls through the sheets of
the grate into the ash drawer, which allows convenient cleaning of the heater without interrup-
on of burning. The grate is one of the most thermally loaded parts of the heater, it is fabricated
of high duty rolled steel with a thickness of 5 mm.
The heater rebox door is fabricated of steel and thermal glass (except the mini
models). The door opening angle is sucient for convenient loading of fuel and allows visual
monitoring of the burning process due to the availability of the glass. The outer surface of the
heater is covered with an-corrosion heat- resistant enamel.
IMPORTANT! Unauthorized modicaon of the heater is prohibited. The manufacturer
reserves the right to make modicaons to the design of the heater that do not impair its
consumer properes.
Cometa Vega series
Removable lid allows accessing to the inner compartment of the stone heater and also
serves as a steam restricng device. Water is supplied to the inner compartment of the
stone heater through funnels.
The heater allows obtaining several steam modes:
Fine steam mode is a mode for special ultralight steam obtained by feeding water through
the funnels to the inner compartment of the stone heater, the stones in which are heated
to temperatures above 400 °С. Given the stone heater lid is installed conguously and the
pressure is growing, the steam escapes through a nozzle located on the lid imitang the
singing of blizzard.
Tradional steam mode is achieved by means of pouring water onto outer stone heater, or
into the inner compartment of the stone heater at the stone heater lid removed.
2.3. Heater commissioning
It is recommended to preheat the heater prior to operaon. Compound for metal protecon
and volale components of the heat-resistant enamel evaporate as a result of heang up of
the heater.
Note: remove all packing elements and paper sckers before the rst heang up of the heater.
The preferable opon for heang up is outdoors, away from combusble surfaces and mate-
rials, in compliance with re safety measures and safe work pracces.

9
Install a poron of chimney stacks vercally (about 2 meters), load 3-4 logs into the heater
rebox and start up a re. Slightly open the ash drawer to ensure sucient dra (adjust the
gap to be within 50 mm). Once the rewood begins to burn and stable dra develops, partly
close the ash drawer (adjust the gap to be within 10 mm).
Add rewood into the rebox as it is consumed. Connue heang up unl smoke and odor
disappear.
IMPORTANT! During the first heating up avoid the chance of mechanical impact on the
paint coating of the heater (do not put the stones into the stone heater, do not rub the
surface, do not pour water).
IMPORTANT! Do not heat up the heater at constant excessive draft which can lead to
heating of the firebox red hot, as this will reduce its service life. Control the draft by
adjusting the ash drawer gap.
IMPORTANT! Install the heater on the place of permanent operation only after com-
plete cooldown.
IMPORTANT! In case a water tank is installed, it shall be cleaned thoroughly before
use. The water tank shall be filled before heating.
2.4. Combuson material
Approved fuel types: dry wood, fuel briquees without arcial binder resins.
Recommended fuel types: hardwood with a moisture content not more than 25%.
The moisture contained in the firewood has a significant impact on the combustion pro-
cess and the heater efficiency, hence to reduce the rate of soot formation on the walls
of the chimney and the flues of the firebox, it is necessary to use the recommended
fuel types.
IMPORTANT! Dierent fuel types have dierent heat of combuson. When a large amount
of rewood with a high heat of combuson is burned, as well as when the heater is oper-
ated at a constant excessive dra, the heater service life decreases.
IMPORTANT! The following is not recommended as fuel:
‒coniferous, resinous tree species (spruce, r, pine, etc.);
‒construcon and other materials containing chemicals, glue, etc.;
‒Vegetaon residues (grass, leaves, etc.).
IMPORTANT! The following is prohibited to be used as fuel:
‒combusble materials with a high heat of combuson (coal, wood chipboard, plasc,
pellets and so on);
‒painted or impregnated wood;
‒waste (plasc, rubber, texles, leather, etc.).
2.5. Stones for stone heater
The permissible stone sizes are given in Table 1.
Only the stones intended for sauna shall be used as heater stones.
IMPORTANT! Put the stones into the heater only aer its complete cooldown.
•Clean the stones from dirt and dust before pung into the heater, thoroughly rinse them
with water.
•Put large stones down and small ones up.
•Choose the opon which suits you the best when pung the stones into the outer stone
heater, namely:
₋put your stones loosely in order to allow for free circulaon and intense convecon of air,
thus ensuring maximum heang of the steam room;

10
₋closely laid stones prevent convecon and provide maximum protecon from infrared
radiaon.
•Fill in the inner compartment of the stone heater with stones up to no more than 70% of
the volume.
•Do not obstruct or shut o the nozzle located on the lid of the inner compartment of the
stone heater, while laying stones into outer or inner compartments of the stone heater
IMPORTANT! It is prohibited to use halite to ll stone heaters.
2.6. Heater operaon
IMPORTANT! Before each heang up of the heater, make sure that there are no foreign
objects in the rebox, ash drawer or in the chimney, and that there is chimney dra.
1. Remove all unnecessary and foreign objects from the rebox and chimney, remove ash
from the ash box.
2. Put 3-4 logs on the grate in such a way as to ensure free access of air to the combuson
area, namely: lay the rewood loosely, adjust the ash drawer gap to be within 50 mm
3. Ignite the rewood loaded into the rebox. The preferred ignion method is using
birch bark, wood chips and other natural materials, or using paper or throwaway news-
papers.
4. Close the door.
5. Partly close the ash drawer aer heang up of the chimney and development of stable
dra (usually aer burning of the rst load of rewood), leaving a gap within 10 mm.
It is necessary to constantly ensure sucient dra, while avoiding the development of
excessive one, that leads to heang of the rebox red hot, which signicantly reduces
the heater service life. Control the dra by adjusng the ash drawer gap.
6. When addional rewood is required, open the door smoothly, without jerks. Load the
rewood and close the door. Adjust the dra. A couple of logs are enough to maintain
the opmum temperature for steam bathing. Bear in mind, that excessive heang (for
example, several full loads in a row) leads to overheang and shortens the heater and
chimney service life, and can also cause a re.
7. The heater operaon may be terminated aer the enre load of rewood burns up.
IMPORTANT! The following is prohibited:
‒allowing rewood to burn inside the heang ue;
‒using explosive, toxic, highly ammable substances, paints, solvents, gasoline, etc., to
ignite the rewood;
‒operang the heater at a constant excessive dra in the rebox.
IMPORTANT!
• Paral burning out of heat-resistant enamel is possible on the most thermally loaded
elements of the heater during operaon, which is not a manufacturing defect.
• The rebox metal may become slightly deformed during operaon, which is not a
manufacturing defect provided the integrity of weld joints is preserved.
• In case there is a hot water tank, water shall be drained from the tank every me
aer terminaon of the heater operaon, if the room temperature drops below + 5 °С
during interrupons of the heater operaon.
2.7. Water in the sauna
The water poured onto the stones shall be clean tap water. Ensure the water quality. Water
with a high content of iron, salt, humus, or lime can lead to early corrosion of the heater