
If your wood is not dry enough, the combustion temperature will be too low. The wood will then smolder instead of burn, and this results in soot on the glass. You can clean the glass with ordinary window cleaner or a special glass cleaner, which you can buy from your local HETA dealer.
If a bigger piece has chipped off, you can glue it back on with water glass, which you can buy from your local HETA dealer.
If a piece is missing, or the impact mark is deep, you can repair the damage with a mixture of soapstone powder and water glass, which you can buy from your local dealer.

Every stove is thoroughly inspected before leaving the factory. In addition, you naturally receive a full five-year warranty on your HETA stove or fireplace.
HETA stoves are certified according to the ISO ZERT DIN ISO 9001 quality management system, ensuring that we maintain the highest standards of quality. Customer satisfaction is the cornerstone of our company philosophy.
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