Ventilation; Flue Duct; Ash - Dik Geurts Bora EA Bedienungsanleitung

3.1.3 Unsuitable fuel
The materials stated below are not suitable for your fire. Therefore, you should never use:
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3.2 Ventilation

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!Caution
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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.

3.3 Flue duct

Sufficient chimney draught is a pre-condition for a good and safe operation of the fire (see section 6.3). When
igniting the fire, the flue duct is still cold. This means that there will be little draught. In order to promote draught,
more combustion air is supplied at the beginning. This additional air can be achieved by further opening the air
supply (see section 5.2). It is also possible to slightly open the door. However, the latter only applies in case of
appliances that retrieve air from the room where they are installed. If there is sufficient draught and the fire is
burning well, the primary air supply and the door must be closed again.
In case of excess draught (> 30-40 Pascal), the flue gases are discharged too quickly, which means that there is too
little time to deliver heat. This will affect the efficiency. In order to solve such a problem, it will be better to contact
your supplier.
If possible, we recommend placing a flue valve to control the draught. These are available at your supplier.
By means of this valve, placed in the fire's pipe, you are able to control the draught. When filling the fire, the valve
must be placed in the open position in order to prevent smoke blowback.
Do not burn during misty and/or windless weather. Flue gases could drop down which could cause (smoke)
!Caution
nuisance.

3.4 Ash

When burning wood, ash is generated. After many hours of burning, a lot of ash has been created. The ash will
provide an insulating layer in your fire. As a result, the combustion temperature will increase and the combustion
process will improve. Moreover, an ash layer will protect the fire bottom. This means that you will have to leave the
ash layer where it is. Only when the ash layer reaches the top of the ash threshold, you can scoop half the ash
(at maximum) out of the fire. Always leave at least 2 cm of ash!
UK
Wet or fresh wood. 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!
Observe the applicable national, local and constructional regulations in relation to ventilation and air supply.
Make sure there is sufficient combustion air.
3
of air per hour, an open fire 150-200 m
US E R MA N UA L
3
.
3
of air per