10 | Regency Horizon® HZO60 Gas Fireplace|10installationCaution RequirementsThe top, back and sides of the fireplace are defined bystandoffs. The metal ends of the standoff may NOT berecessed into combustible construction.WARNINGFire hazard is an extreme riskif these clearances (air space) to combustible materials are notadhered to. It is of greatest importance that this fireplace beinstalled only in accordance with these instructions.MINIMUM CLEARANCES TO COMBUSTIBLESThe clearances listed below are Minimum distances unless otherwise stated:A major cause of fires is failure to maintain required clearances (air space) to combustible materials. It is of the greatest importance that thisfireplace be installed only in accordance with these instructions.FEDACBHZO60 External Clearance RequirementsClearance: Dimension Measured From:A: Sidewall 11" (203mm) Side of Fireplace OpeningB: Ceiling 36" (914mm) Top of Fireplace OpeningC: Mantel Height (min.) 22" (559mm) Top of Fireplace OpeningD: Mantel Depth (max.) 12" (304mm) From WallE: Alcove Width 86"(2184mm) Wall to Wall (Minimum)F: Alcove Depth 36" (914mm) Front to Back Wall (Maximum)Notes: 0" No Hearth RequiredEFAlcoveABWARNING:When installing this appliance; do not cover or sur-round with insulation.This appliance can overheat and cause malfunc-tion and component failure, if covered, or partiallycovered.If the appliance is installed inside a chase, insulationmust be installed on the walls of the chase, not onthe appliance.