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© Kirami Oy, Finland
Use smaller and dry kindling wood for igniting the fire and then add bigger pieces as needed every
10 to 15 minutes. Maintain the fire in the stove during heating, so that the wood will burn properly
and the tub will heat with maximum power. If the fire is too small, the heating time becomes
remarkably longer.
Use any lighter fluid according to the instructions. Do not use any other fuels for lighting. We
recommend lighting pieces, e.g. Burner paraffin bags.
Cold water and warm air (temperature difference/air humidity) often cause condensed water in the
ash collector. Therefore, the stove is not leaking although there is some water in the furnace. You
can suspect a leakage only if the water level is going down.
Use only small, dry firewood in the stove. The use of larger and damp firewood may double the
heating time and it will also generate a lot of smoke. We do not recommend black alder because it is
sootier than other wood. It is advisable to adjust the air intake of the stove according to the type
and size of the wood, so as to reduce the amount of smoke.
Empty ashes from the stove after each use.
During heating, the tub should be covered in order to limit heat evaporation as much as possible.
The water temperature should be measured every 20 minutes during heating. Because water
stratifies into layers when it warms up, it should be mixed with a Kirami paddle, for example. When
the temperature reaches approx. 32°C, it is advisable to reduce the amount of firewood added so as
to avoid overheating the tub. When the desired temperature has been reached, you may keep a
small fire under the tub where necessary to sustain the temperature. Practice makes perfect in this
as in anything else.
It is advisable to open the cover about 5 minutes before getting in the bath to allow the water to
settle. For reasons of safety and heat evaporation, the cover should be closed as soon as possible
after taking a bath, especially if you intend to use the tub the next day.
Heater paint surface can be stained by drinking classes, pool chemical cans, chemical dispensers
and sometimes even by water with calcium. So please do not use your heater as a table.
MAINTENANCE AND SAFETY OF THE TUB
Surface treatment
Thermowood
A tub lined with thermally modified wood is beautifully brown. If you want to keep the brown tone,
the tub shall be oiled from the outside at least once a year with an UV-protected impregnant.
Water-based wood oil Teknoshield 4015 has been used at the factory. The re-treatment should be
made with similar oil and with selected brown tones. Teknos Woodex Aqua suits for treatment in
Finland. On top of Teknoshield 4015 you can use different kinds of wood oils and transparent
paints (solvent and water based).
Other remarks
Note that the discharge tap should always be left open in an empty tub. If water gets inside the
tank from somewhere when the discharge tap is closed, water can freeze in the pipes and break
parts.
INSTRUCTIONS FOR USE: Original Tiny ™ hot tubs
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01.03.2022