Noble Flame RAGNA Manual De Instalacion Y Uso página 22

Lava Rocks
This should be done outside.
Cover the burner with either glass or lava rock fuel beds. DO NOT tip the bag of glass or lava rock
onto the burner as the bags usually contain some fine dust which could clog the burner jets. It is
better to empty the bags into a suitable container and then place the glass or the rocks by hand
around the burner. Make sure the area around the pilot light is kept clear to allow air to reach.
Positioning of Glass or Lava Rock on the Burner – Keep Pilot Area Clear
`