Cracked, Crazed or Broken Glass?
Modern woodburners use heat-resistant ceramic glass, but damage can still happen through poor burning habits, impact damage, or general wear and tear.
Damaged stove glass can:
Reduce stove performance
Allow dangerous fumes or air leaks
Increase the risk of carbon monoxide problems
Put your home and family at risk
Three types of stove glass problems
Crazed Glass, Cracked Glass and Broken Glass
Crazed Glass : Cloudy or misty appearance
Caused by acidic deposits etching the glass
Often linked to poor fuel and long slumber burns
Safe to use but cannot be cleaned off
Cracked Glass : Visible crack across the glass
Damage may worsen over time
Glass should be replaced soon
Stove is usually still usable temporarily
Broken Glass : Missing pieces or gaps in the glass
Dangerous fumes can escape
Stop using the stove immediately
Common causes of glass problems
Wet or poor-quality wood
Slumbering overnight
Overfiring the stove
Damaged rope seals
Impact damage or overtightened clips
Not having the chimney swept annually
