11
In order to get rated heating power and as higher rate of usage, we recommend that you use dry beech wood cut with a
length of L=33cm as a heating material.
15. CLEANING AND MAINTENACE
Before every filling with fuel, the solid fuel grate must be cleaned with a spade by opening the ember holders or through
the open door of the firebox. The ash from the ashtray should be removed at least once a day and larger residues (slag)
should be removed by opening the door of the ashtray and the ember holder. The clean heating surfaces guarantee economic
operation of the solid fuel. Cleaning of the solid fuel once a month is recommended, and if necessary more frequently as well.
Do not clean enameled surfaces of the solid fuel and the solid fuel frame with a wire brush and wire sponge since the
enamel and the protection may be damaged, instead, use a damp cloth and cleaning assets and fine detergents. Clean the
oven after every use while it is still warm. Leave the oven door open after cleaning for couple of minutes so that unpleasant
odor would not be sensed during the next warming up.
Temporarily clean the solid fuel hob with fine sandpaper and in case of longer brakes it should be greased with oil that
does not contain acids (vegetable oil). Remove burnt things from the hob by using a palette knife or a knife and eventually
treat it with graphite or ash from the ash box or with oil.
It is forbidden to artificially cool the solid fuel with unnatural draft and soaking the firebox with water so that it gets cold.
16. SOLID FUEL STORAGE
After finishing the stoking season, the solid fuel should be cleaned from ash and smoke. Water should be released only in
case when some repair of the installation should be performed. If the installation is not used in the heating season, pour a
certain quantity of some antifreeze liquid or release the water from the installation as a protection from freezing.
17. FAULTS
Table 3
Water pressure in
installation is slowly
decreasing
The installation
does not seal
Check the sealing of welded connections, threaded fasteners, nuts etc.
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
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.
The radiators do not
heat along the entire
length
Release air from radiators through the vent valve
The safety valve drains
water from the
installation, and the
pressure is less than 3
(2,5) bar
The pressure in the
installation is more
than 3 (2,5) bar and
the safety valve does
not drain water from
the installation
Sudden water
temperate increase in
the installation
Closed valves
towards radiators
Open all valves in the heating system and provide normal water
circulation in the installation
The circulation pump should be repaired or replace it thereby allowing
operation of the heating system
You should open all valves that reduced the heating system. This mostly
refers to the “by-pass” valve.
Stop or reduce stoking with strong control so that the water temperature
in the system would not exceed 90C until electricity arrives.
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