Amount Of Wood; Suitable Types Of Wood; Unsuitable Fuel; Ventilation - Dik Geurts Aste 5 Mode D'emploi

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5.1.1 Amount of wood

You must observe the recommended volume of wood blocks (number AND dimensions) provided in Appendix 1,
Table 2. When a larger volume is used, the heat delivery will increase. In that case, the fire could get overloaded, as a
result of which parts could get damaged and/or the walls of the fire will discolour. The glass pane could also
blacken sooner. If the fire is burning too hard, you should use coarser/harder wood.
Always heat the appliance to capacity. Gross, 1 kg of dry burning wood will supply approx. 4 kWh (kilowatt hour) of
energy. For example: for an appliance with a capacity of 4-8 kWh, you must add 1-2 kg of firewood every 45
minutes.
The capacity of your fire can be seen in the installation manual in appendix 2 and on the data plate.

5.1.2 Suitable types of wood

The following types of wood are recommended for burning your fire:
• Hard types of wood such as oak, beech, hornbeam, ash and fruit tree wood. These types of wood generate a
short flame and will burn longer.
• Light types of wood such as birch, poplar, willow and alder. These types generate a long flame but burn up
rather quickly.
• Wood briquettes (compressed wood chips) are not to be burnt in a smoke control area.
Coniferous or pine wood. This wood should only be used in a well burning fire, because otherwise you will get
!Caution
deposits in the flue duct. It is not really suitable for open fires, because of the sparks. Pine is often used as kindling
wood.

5.1.3 Unsuitable fuel

The materials stated below are not suitable for your fire. Therefore, you should never use:
• Wet or fresh wood,as it contains moist (at least 20%). It will be very hard to ignite your fire with this wood and
it provides little heat.
• Painted, stained or impregnated wood. The chemicals are bad for the environment and will affect the glass
pane and inner lining as well.
• Plywood and chipboard.
• Types of coal such a anthracite, cokes or ovoids. These are only suitable for burning a coal fire.
• Printed (coloured) paper from magazines and newspapers. You can use a ball of paper to ignite the fire.
• Combustible fluids. These may also not be used to ignite the fire.
• Plastic, textile and other waste materials. A 'multi-burner' for any material does not exist!

5.2 Ventilation

• Observe the applicable national, local and constructional regulations in relation to ventilation and air supply.
!Caution
• Make sure there is sufficient combustion air.
Combustion requires air. A wood fire will use approximately 35-50 m
There are appliances that retrieve the combustion air from the room where the appliance is installed, as well as
appliances that are able to have an outdoor air connection. This is stated in the technical data of the Installation
Manual.
The lack of fresh air in houses with a mechanical air extraction system and/or when a cooker hood is used in an
open kitchen, may create underpressure in your room. As a cooker hood is able to extract 600 to 1000 m
hour. In those cases, there is a risk that harmful flue gases from the fire flow into the room (smoke blowback).
Moreover, the fire will not work well, if the combustion air has to come from the room where the fire is installed.
In this situation, we recommend placing a fire with outdoor air connection. The combustion air is supplied from
outside, by means of a tube.
In case of an appliance that retrieves its combustion air from the room where it is installed, the supply of fresh air is
very important. You can supply fresh air by opening a skylight or leaving a window/door slightly open.
3
of air per hour, an open fire 150-200 m
3
.
3
of air per
2 4 UK