Heater Door And Changing Left/Right-Handedness; Grate; General Advice To Prevent Damage; Using The Heater - Helo R20 Manuel D'installation Et D'utilisation

2.9. Heater door and changing left/right-handedness

The door's opening direction can be changed by turning the door over.
Changing the door's left/right-handedness:
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Open the door and push the hinge pin from below to release it from its hole.
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Pull the hinge pin down to release it from the upper hole; the door is now detached. Pay attention to the washer and
locking nail.
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Turn the door around so that the handle is on the preferred side.
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Firstly, push the hinge pin into the upper hole in the frame, and insert the washer to the pin on top of the frame (the part
of the pin with notches should face down).
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Insert the upper hole of the door to the hinge pin above the frame.
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Finally, guide the hinge pin into the lower holes in the frame and the door.

2.9.1. Grate

There is a grate in the heater's stove. Place it on the brackets on the bottom of the stove. Clean the grate from ash before
the next heating to allow air through the grate to the furnace (Figure 9).

2.9.2. General advice to prevent damage

When you bring the heater into the sauna room, burn another full batch of wood before placing the stones and make sure
that there's plenty of ventilation. This way any residual protective agents will burn off and the finish is properly cured.
Read the instructions below and make sure to follow them:
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Maximum wood quantities can be found in Table 2.
•
In cold conditions, avoid heating in full power. The brick chimney may crack.
•
Avoid throwing water straight onto the glass door.
•
Do not heat the sauna heater so that the cover is red-hot.
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Exposure to saltwater will shorten the heater's life cycle significantly. Please note that even water from a well can
contain salt in the vicinity of sea.
•
The warranty does not apply, if saltwater is used for the heater.
•
Other factors contributing to the heater life-cycle are correct size to the space, the fuel used, the number of heating
times, operating against the user instructions, and general diligence.
•
Helo heaters are carefully designed and tested. If a heater becomes damaged in use in an unreasonably short time
(e.g. the covers or top part are torn or burned through etc.), Helo Oy can fairly say on the basis of research data, that
the heater has not been used as instructed. Helo Oy will not be liable for damage in result of misuse or use against
instructions.

3. Using the heater

3.1. Fuels

Use only unprocessed wood in Helo heaters, preferably chopped birch or alder (maximum amounts in Table 2). The length
of a single piece of firewood is approximately 35 cm. Dampness 12–20%. NOTE! Damp or decayed wood does not provide
heat very well and emissions are higher.
The amounts of wood mentioned in Table 2 correspond to the values of a nominal output test in compliance with EN-
15821, where the volume of the sauna room is the maximum volume. Therefore, use a smaller amount of wood first to find
the suitable amount of wood for your sauna.
The following materials are not allowed in the heater furnace: impregnated wood, wood containing nails, chip board, plastic,
plastic coated board or paper. Liquid fuels are not allowed, not even when starting the fire because of the risk of a flash fire.
Do not burn large amounts of small pieces of wood, such as chips or small pieces because of their high temporary heating
effect.
Firewood must not be stored immediately next to the heater. Pay attention to the safety distances.

3.2. Adjusting the air flow

The heater has been designed to perform best when the negative pressure of the flue is approximately –12 Pa. If the
chimney is long, this optimal negative pressure limit may be exceeded. Adjust the draft and combustion air flow using a
damper so that it is suitable. Be careful of carbon monoxide. The damper must not be closed too far!
When lighting the fire, the door may be kept slightly open for a moment. The ash pan must be closed. It is not opened
during burning. Combustion air comes from another source. The ash pan has a catch to prevent opening, when there's fire.

3.3. Adjusting heating efficiency

The amount of wood when stoking determines the heating efficiency. Table 2 shows the correct amounts of wood which
guarantee burning in accordance with the CE marking.
The heating efficiency is up to the quality and the amount of fuel. Do not burn too long pieces of wood in the furnace.
Do not exceed the amounts of wood mentioned in the Table.
Do not heat red-hot.
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