The Cannon coal pack only appears in fires that do not have a closed burner section. They serve two functions. The first is to allow heat to be emitted from the fire. The second function is safety. They are made to slot together in a specific way that aids complete combustion. If the coals or pebbles are assembled incorrectly, noxious gases could escape from the fire due to incomplete combustion.
Fits multiple appliances
Technical specification
ERP RatingNot ApplicableSupplier Part NumberC00148310Brand NameCannon