Bedienungsanleitung Steuerung S4_2006_09_25-neu.doc
Page 36 / 83
© wodtke GmbH Tübingen. All rights reserved. Subject to change without notice.
Month of issue xx/2007
Art. No. 950 281
8 Cleaning and Care
Unlike oil or gas, solid fuels always leave ash and soot behind when combusted. Regular
cleaning by the operator is therefore indispensable for ensuring trouble-free operation.
The residues of wood combustion are completely harmless. Pellet ash is an entirely natural
product and suitable for fertilising all types of indoor and outdoor plants.
Caution / Danger:
Appliances that are not cleaned according to our instructions must not be operated.
Disregard of this note voids all warranty claims.
The required frequency of cleaning the burner pot depends exclusively on the ash
content of the pellets and cannot be changed through adjustments on the appliance,
since ash is simply the total of non-combustible pellet constituents!
We therefore recommend using wood pellets with an ash content < 0.5%.
Like any solid fuel would, but all the more so on account of their very fine ash, wood pellets will
cause a deposit to form on the viewing window, which can vary in appearance from very bright
to dark black (the latter especially in the event of low-load operation). This is a natural process
that results from the combustion of wood pellets and in no way a shortcoming.
Caution!
Before starting on any kind of care routines switch the stove off and let it cool off. Please
also observe the safety instructions on the hopper lid. Any part of the firebox may still be
hot. The ash might still contain glowing embers. Never fill unburnt pellets or ash from the
fire box back into the fuel hopper – danger of fire!
8.1 Inspecting and removing the ash from the burner pot
Please inspect the burner pot for combustion residues (ash, slag) every day, yet at least
every time when filling the fuel hopper. Clean the burner pot using the ash scraper delivered
with the appliance at the latest when 30 g of ash/slag have accumulated in the burner pot
(residue layer of approx. 3 cm – see photo).
Clean burner pot
In need of cleaning
air holes and ignition air slit free
burner pot filled with 30 g ash/slag
ignition effective
clean combustion
ignition air slit clogged
no/poor ignition
long maintenance
intervals
high efficiency
poor combustion
frequent maintenance
