12
14.
FUEL
Fuel can be stored in the fuel box (Fig. 14). The fuel box is moved on guides. If you want to take the fuel box out of the
stove, you must lift it to remove it from the guides.
Use the fuel specified in Table 2 to ensure the nominal heating capacity of the boiler at chimney draft of 20 Pa.
Do not burn coal dust, sawdust or waste that generates large quantities of smoke!
Figure 13
Figure 14
Figure 15
Table 2
Fuel
Calorific value (kJ/kg)
Dry beech firewood
15,300
NOTE:
To ensure the nominal heating capacity and maximum yield, we recommend you burn dry beech wood cut at the length of
L = 33 cm.
15.
CLEANING AND MAINTENANCE
Each time before loading the fuel, clean the grate using a small shovel by opening the grate holder or through open firebox
door. Remove the ashes from the ash pan at least once a day and remove the larger residues by opening the ash pan door and
grate holder. All surfaces of the stove that are in contact with flue gases must be regularly maintained and cleaned using a
small shovel. Clean heating areas guarantee cost-effective stove operation. It is recommended to clean the stove once a
month or more often, if necessary.
Do not clean enameled surfaces and stove frame using wire brush or wire sponge because it could damage the enamel
and safety lining, but use wet cloth, cleaning agents and mild detergent instead. Clean the oven after each use while still hot.
After cleaning, leave the oven door open for a few minutes to prevent bad odors the next time you heat the oven.
Clean the cooktop occasionally using fine sandpaper, and in the event of longer breaks, apply acid-free oil on the cooktop
(vegetable oil). Remove burnt material from the cooktop with a spatula, knife or treat it with graphite, ashes from the ash pan
or oil.
It is prohibited to cool down the stove by making an artificial draft or by using water to cool down the firebox.
16.
CONSERVING THE STOVE
At the end of the heating season, clean the stove from ashes and soot. Discharge the water only if any repairs need to be
carried out on the installation. If the system is not used during heating season, poor a certain amount of antifreeze liquid into
the system or discharge the water to prevent freezing.
17.
TROUBLESHOOTING
Table 3
RB Faults
Possible cause
Elimination
1
Water pressure in
installation is slowly
decreasing
The installation
does not seal
Check the sealing of welded connections, threaded fasteners, nuts etc.
2
Cold radiators on the
highest installation
point and a sound is
heard
Air in the
installation and
low pressure in
the installation
Increase pressure in the installation and release air from the installation
and from radiators
3
Moisture builds up in
the boiler
1. Condensation
of flue gases
1. Compare the total power of the installed radiators with the power of the
stove. If the total power of the installed radiators is greater than the total
power of the stove delivered to the water, replace the furnace with a
stronger one, or adjust the number of radiators to the power of the stove.
4
The radiators do not
heat along the entire
length
Air in radiators
Release air from radiators through the vent valve
