6.1.3.
Heating elements
⇒ Please make sure that no clays and glazes come into contact with the heating elements. This will cause the
heating elements to malfunction during subsequent firings. If, however, impurities get onto the heating
elements, clean them immediately, as burned-in glazes etc. will damage the heating elements and bricks. If
there is substantial damage, please contact Helmut Rohde GmbH or your retailer.
⇒ Heating elements are subject to wear. Their resistance (Ohm) increases with every firing. Over the course of
time this will lead to delays in the firing cycle due to a drop in performance, especially in the upper
temperature range. If there is excessive wear, we recommend that you replace the complete set of heating
elements rather than just single elements. Replacing individual elements might lead to variations in
temperature inside the kiln.
⇒ Have a qualified electrician replace the heating elements!
A tip for the firing professional:
Always keep a spare set of heating elements!
In case of an emergency this will save you unnecessary delay and allow you to continue firing as quickly as
possible.
6.1.4. Cleaning
Remove clay and stone dust regularly using a broom and a vacuum cleaner. This will also increase the service life of
your heating elements.
6.1.5.
Tips on burning
⇒ Avoid reduction glaze firing, as this will cause the oxidation layer to decompose, thus significantly reducing
the service life of the heating elements.
⇒ We recommend an empty firing (without furniture or goods) after every 20th firing. This will "clean" the
heating elements and at the same time the oxide layer can renew itself which will extend the service life of
the elements.
6.2.
Adjust the sealing cord
Step
Action required
In order for the kiln door to seal optimally, it may be necessary to
1
adjust the insulating cord (sealing cord) in the door.
2
In this way you achieve an optimal sealing of the kiln door again.
Use a clean, flat piece of wood. Carefully press the piece of wood
3
from the outer edge against the insulating cord.
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Illustration