Kratki KOZA AB Serie Manual De Operación E Instalación página 24

2. STOVE PREPARATION
- Open all air supplies/dampers in the fireplace
- Stack the larger billets in alternate directions on the bottom of the hearth
- Put a layer of smaller splints on the top of the thick billets for kindling (not more than 3 layers). Arran-
ge the splints so that there is some space between them to let the air flow freely
- Place the tinder on the top layer
BURNING
Strike a light and close the fireplace door. Depending on how long the chimney flue is and how strong
its draught is, lighting may take from a few to dozen plus minutes. If the chimney draught is not suffi-
cient, let some air in by opening the fireplace door slightly. It might be a good idea to open a window
slightly in the room in which the fireplace is installed to supply larger amount of air to the appliance
(the appliances without integrated external air intake only)
The fireplace insert is designed to burn wood with a humidity of up to 20%. Using coal, coke, coal-ba-
sed products, plastic, litter, cloths and other flammable materials is not allowed.
Burning approved wood briquettes made of wood dust or pellet is temporarily allowed, but in small
quantities only.
The following is practical guidance for assessing the wood used as fuel. The wood which is to have a
humidity of 18-20% must be seasoned for 18-24 months or kiln-dried. As the humidity of wood de-
creases, its net calorific value rises, which brings financial savings of even up to 30% of the total wood
weight needed to run the appliance during one heating season. If the wood used for burning is of too
high humidity, then, too much energy needed for evaporation and condensation in the flue pipe or
combustion chamber can be consumed, which affects the heating process of a room.
Another negative process occurring when the high-humidity wood is used is the emission of creosote,
a deposit which damages the chimney flue and, in extreme cases, can result in ignition and a chimney
fire.
It is therefore recommended to use hardwood like oak, beech, hornbeam or birch. Lower calorific va-
lues are typical of the coniferous trees and burning their wood produces heavy soot accumulation
on the glass.
CAUTION! It is allowed to run the fireplace insert without a housing during a trial startup only.
NORMAL STOVE BURNING AND EXTINGUISHING
To prevent flue gases from escaping during the heater's operation, the door should be closed at all
times, except for lighting, fuel loading and removing ash. The maximum air supply must be provided
when lighting the fire. The primary air-supply control must be opened entirely. A slight opening of the
door is allowed until the fire is lit. Do not leave the site while lighting the fire when the door is open.
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