Regency PG121/PG131 Zero Clearance Room Sealed Gas Fireplace 9INSTALLATIONCOMBUSTIBLE MANTELSCLEARANCESThe clearances listed below are Minimum distances unless otherwise stated (refer to diagrams in "Locating Your Gas Fireplace" section):WARNING:Fire hazard is an extreme riskif these clearances (air space)to combustible materials arenot adhered to. It is of greatestimportance that this fi replaceand flue system be installedonly in accordance with theseinstructions.Clearance to Combustibles from:Back 0" (0mm)Side 0" (0mm)Floor 0" (0mm)CAUTION REQUIREMENTS: The top, back and sides of the fi replace are defi ned bystandoffs. The metal ends of the standoffs may NOT be recessed into combustibleconstruction.Determine the total thickness of the finished floor (eg. tile, carpet, slate) to allow thefi nished surface to be flush with the base of the unit.Ceiling Height from Floor 72" (1828mm)Mantel Height from Base of Unit:39" min. (991mm)Horizontal Flue Clearances:Top 2-1/2" (64mm)Side 1-1/2" (38mm)Bottom 1-1/2" (38mm)Vertical Flue Clearances 1-1/4" (32mm)Due to the extreme heat this fireplace emits, the mantel clearancesare critical. Combustible mantel clearances from top of unit are shownin Diagram to the right.Note: A non-combustible mantel may be installed at a lowerheight if the framing is made of metal studs covered witha non-combustible board.This drawing is to scale at 1:6 (one inch = 6 inches)Mantel can be installed anywhere in shaded area or higher using thisscale.Caution: Ensure the paint that is used on the mantel and thefacing is "heat resistant" or the paint may discolour.* If the 3" (76mm) metal extension trim is removed it must be replacedwith a 8" (203mm) non-combustible material.Mantel Clearances