12 | LRI6E / HRI6E Direct Vent Gas Insert|12 installationDoorOpening16" MinFrom Top of2426283032343638024681012141618202224AllowableMantel Area)URPERWWRPRIXQLW22201816DoorOpening12" MinFrom Top of2426283032343638024681012141618202224AllowableMantel Area)URPERWWRPRIXQLW222018161412Diagram 1Diagram 3Diagram 21RWH $ PDQWHO GHÀHFWRU WR UHGXFHmantel height to 36" from bottom of unit@ 1"depth.A noncombustible mantel may beinstalled at a lower height if the framingis made of metal studs covered with anoncombustible board.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 thisdecorative gas appliance be installed only in accordance with these instructions.Clearance: Dimension Measured From:A: Sides 12" / 305 mm From inside edge of faceplate / doorsB: Ceiling 60" / 1524 mm From Base of UnitC: Mantel (Min. Height)* *36" / 914mm40"/ 1016mmFrom Base of UnitFrom Base of UnitD: Min. Hearth Depth 14" / 356mmE: Min. Hearth Width 44"/ 1016mmG: Max. Mantle Depth 12" / 305 mm @ 48" (1219mm) from bottom of unitK: Min. Alcove Width 56" / 1422 mmL: Max. Alcove Depth 36" / 914 mmM: Optional mantelGHÀHFWRU3-1/2" / 89mmNotes: Non-combustible hearth required. If unit is raised 6" from the floor - no hearth isrequired.Otherwise:Min. Hearth requirements - An R value of 1.75 is required to meet the requirements of thehearth in front of this appliance. 1" of Calcium Silicate board available from Regency, partnumber (296-936) plus 3/8" tile or equivalent would meet this requirement.See part instruction sheet 919-133 for non-combustible Calcium Silicate board requirements.MANTEL CLEARANCES WITHOUT DEFLECTOR *MANTEL CLEARANCES WITH 3-1/2" DEFLECTORWARNINGAlthough this appliance passes safetycertification, the hearth in front of the fireplacebecomes very hot when the fireplace heats. Donot use the hearth as a seat or shelf.