WALLTHERM
®
produced and developed by
Walltherm
®
45/64
Slowly there should be the following operating condition.
The exhaust gas temperature drops
Down to about 130
– 160 °C
If everything is working correctly, the gasification flame should burn constantly and
should always be visible in the lower combustion chamber, if there is enough wood in
the upper chamber.
If not, please contact your specialized technician
Important: Always open the exhaust fume flap, while putting more wood logs in the
upper chamber. Otherwise the exhaust gases can not escape to the chimney and
fume could leak into the living room.
If the gasification flame is not burning stable or turns off, there could be the following issues:
The wood logs in the upper combustion chamber are not layered and there are hollow
spaces or the wood is burned down.
Fuel problems: wood logs to humid, to big, to old (more than 8 years)
The chimney drought is to less (less than 12 PA / 1,2 mm WS)
The combustion electrical air flap is closed or the primary air is partly closed
The grids or the injector block are blocked with ash.
The exhaust gas temperature is to low (< 100 °C)
The return flow temperature of the stove is under 60 ° C. See thermometer of the pump
unit. To rise the return flow temperature turn the thermostat head of the pump unit higher
(Pos. 6 – 7).
The return flow temp. has
to be ca. at 60°C
The high efficiency pump
works continuously.
forward flow return flow
boiler stove
forward flow return flow
storage tank
Thermostat head of the
mixing valve on pos. 5 - 7
The temperature of the
forward flow can
vary between 60
– 75 °C
The temp. of the return flow of
the storage tank can be very
low because of a cool storage
tank.