Boiler Stoking; Tarring And Condensation - Orlanski ORLIGNO 100 Manual And Service Manual

4.1. Boiler stoking

In order to stoke boiler:
1. Close primary air flap.
2. Open completely flue flap.
3. Open slightly upper door in order to suck out gases through chimney.
4. Open completely upper door and stoke boiler.
5. Close upper door, return to previous setting of flue flap and primary air.

4.2. Tarring and condensation

Lightning up in cold boiler may cause that water precipitated from fuel falls on boiler walls and runs
down to ash chamber. That may look like boiler leakage. It is important to keep boiler temperature
high enough at least 70°C. It is recommended to install four-way mixing valve which protects boiler
from low temperature return below 50°C. Too humid wood also causes that boiler works on low
temperatures, which leads to tarring. In order to avoid problem of tarring and condensation – keep
high boiler temperatures, boiler must be properly sized to heated space to avoid oversizing – boiler
then will work on low temperatures.
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1. Boiler ORLIGNO 100
2. Pressure vessel
3. Radiator
4. Safety valve- protection- from verheating
5. Four-way mixing valve
6. Safety group