Regency Horizon™ HZ42STE-10 Gas Fireplace | 4141|installationGLASS CRYSTALS OR OPTIONAL STONES INSTALLATIONSpread the Glass Crystals or Stones evenly over the burner. Ensure the crystals/stones do not overlap excessively as this will affect the flame pattern.IMPORTANT NOTE:Only the supplied approved Glass Crystals and Stones are to be used with these fireplaces. Use of any other type of glass crystals or stones can alter theunit's performance. Any damage caused by the use of any unapproved glass or stones will not be covered under warranty.When using Ceramic Spa/Volcanic Stones ensure required glass crystals/beads are used as a base. DO NOT overstack Ceramic Spa Stones or VolcanicStones on burner or in the pilot area.BURNER PACKAGESUnit *Glass Crystals Fire Beads Stones - Spa / Ceramic / VolcanicHZ42STE 2lbs 3lbs 1.5 lb Glass + 30 Ceramic Stones or 1.5 lb Glass + 25 Volcanic Stones2 lb Beads + 30 Ceramic Stones or 2 lb Bead + 25 Volcanic StonesNOTE: * Glass Crystals are not supplied with the unit. Must purchase separately - see quantities aboveOPTIONAL PEBBLES / GLASS CRYSTAL INSTALLATION FOR FIREBOX BASE (AROUND BURNER)Firebox (Around Burner) PackagesUnit Glass Crystals Fire Beads PebblesHZ42STE 5 lbs 5 lbs 2 packages (6 x bags pebbles)There are 2 optional packages to choose from to cover the firebox base:1) Natural River Pebbles2) Glass Crystals (4 colors available)Spread the pebbles / crystals evenly on the exposed base of the firebox. Pebbles are NOT to be placed anywhere on the burner or over top of the GlassCrystals or optional Stones.IMPORTANT NOTE: Only the supplied and approved pebbles / glass crystals are to be used with these fireplaces. Use of any other type of pebbles, glasscrystals or other material can create a danger and will void the warranty.Optional Volcanic Stones + Glass Crystals shown on burner.Natural River Pebbles shown surrounding the Horizon BurnerGlass Crystals shown surrounding the Burner