barbas UNIVERSAL-6 70 Instructions For Use & Maintenance Manual page 26

Can I leave my appliance unattended?
Only do this when the appliance is burning quietly, with just a little wood, with a closed
door and with the combustion air supply slider in the centre position between " + " and
" - ". In this position, the primary air supply is closed and the secondary/tertiary air
supply is open.
• Primary air is supplied through the grate in the bottomplate (appliance base).
• Secondary air is supplied through the small holes in the rear panel of the combustion
chamber.
• Tertiary air is supplied through the opening behind the glass, on the upper side of the
combustion chamber.
Do not leave children unattended while the appliance is burning.
Do I have to take any extra measures if the room I am heating has an extractor fan
(mechanical ventilation)?
If the combustion air comes from the living-room:
A fl ue gas fan is required for permanent extraction of the area in which the appliance is
placed.
The type of fl ue gas fan depends on the capacity of the extractor system.
Always consult your installation engineer about this.
If the combustion air comes directly from outside via a direct connection:
If there is constant extraction of the room in which the appliance is located, no additional
provisions are necessary.
What is creosote?
Creosote is a tar-like deposit which is left in the chimney. It is formed in poor combustion
conditions when burning wood (damp wood, pinching off the air supply to the
appliance or burning impregnated or painted wood for example). Creosote ignites at
approx. 500°C. This temperature can easily be reached if the appliance is raging. This
means that deposits of creosote in your chimney could cause a chimney fi re.
What happens when wood is burnt?
The combustion process.
The combustion of wood involves the following steps:
Drying
The fi rst step is that the fuel (wood) dries out. Even at low temperatures (~ 100°C), any
moisture still in the wood will evaporate. This drying procedure implies a signifi cant loss
of energy if wood which is 'too' damp is burnt. The right degree of moisture is achieved
after 1.5 - 2 years of drying. The moisture content is then 15 - 17%.
26
UNIVERSAL-6 70
Instructions for use