- Open door on ashes compartment
- Close vertical grate (figure 7 position 10)
- Let wood burn out and close door on ashes compartment.
When chippings establish hot bed of embers, open door and add fuel in the hearth and adjust
primary and secondary air control according to type of fuel. Never add new fuel when there is
flame!
Air control duct on ashes compartment should be in
marked position (1 - 3) (see figure 6).
Figure 6
When adding fuel, open hearth door slowly to avoid smoke entering the room.
Nominal heat power is achieved in accordance with the following table.
Type of fuel
Fuel quantity
Combustion time
Air control duct on
ashes ompartment
Chimney
draft
control
Kg
H
Position
Position
Seasoned wood
1,6
1,5
3
2
Lignite briquette
2,25
2
3
0
Use only natural seasoned wood and lignite briquettes. Seasoned wood should be in logs 17 cm
long, or use 4 cubes of lignite briquettes.
Polished, painted, veneered and impregnated wood or wood treated with glue is not allowed for
use. This voids every guarantee and responsibility of the manufacturer. Use dry seasoned wood
(20 % of moisture). As rule, wood is dry after being stored in dry place with good air circulation for
two years. Wet wood uses energy for drying and has low caloric value and accumulates creosote
in chimney pipes and chimney.
Bad chimney condition (e.g. bad weather) may cause problems and smoke may not be eliminated
completely. In such case it is not allowed to operate furnace due to security issues.
5.2 Furnace maintenance and cleaning
Whole furnace should regularly be checked by competent personnel. Hearth, chimney pipes and
chimney must be cleaned regularly, several times per year and at least once during heating
season.
Regular maintenance and cleaning is crucial for proper and reliable operation of furnace. Enamel
surfaces should be cleaned only when cold. Clean furnace with water and soft cloth. In certain
conditions, clean furnace with soap. Cleaning frequency depends on type of fuel, duration and
usage of furnace.
Ash can should be regularly emptied prior
o e ach operation (figure 7, position 11).
1-2 times per week clean grate(figure 7, position 9).
In case that air duct get blocked by byproducts,
these must be removed immediately.
In this case pull grate out and clean it (figure 7).
Figure 7
9
10
11
