Regency ® P33-4 Zero Clearance Direct Vent Gas Fireplace 13INSTALLATION3) For exterior walls, insulate the enclosure tothe same degree as the rest of the house,apply vapour barrier and drywall, as perlocal installation codes. (Do not insulatethe fireplace itself.)4) The top of the unit must not be closer than30" (762mm) to the ceiling.5) Combustible material may be brought up tothe top and sides of the unit and be coveredwith ceramic tiles, bricks, rock or othersuitable combustible finishing materials.Note: The unit does not have to be completelyenclosed in a chase. The clearance ontop of the unit is 0" to the standoffs socombustible building materials can belaid directly on top of the standoffs.You must maintain clearance fromthe vent to combustible materialsfor fl ex or for Rigid Vent (Refer to"Clearances" Section).1) Determine the total thickness of facingmaterial (e.g. drywall plus ceramic tiles) toallow the finished surface to be flush withthe front of the unit. Total facing thicknesscan vary from 1/2" (13mm) to 1-1/4" (32mm)thick.6) Use steel studs for framing where the1-1/2" (38mm) clearance from the ventto combustible material cannot bemaintained.2) Frame in the enclosure for the unit withframing material.FRAMING AND FINISHING16-1/2”(419mm)Minimum4"(102mm)3"(76mm)1-1/2"(38mm)30”(762mm)10" (254mm)dia. Hole throughwall for Dura-Vent1/2"(13mm)DrywallTop HeaderOpening for gasconnection12-3/4”(324mm)Minimum4"(102mm)3"(76mm)1-1/2"(38mm)26”(660mm)10" (254mm)dia. Hole throughwall for Flex1/2"(13mm)DrywallTop HeaderOpening for gasconnectionRigid VentMinimum ClearancesFlex VentMinimum ClearancesVertical Termination orVertical Rise with HorizontalTerminationNOTE: If this is an outside corner, theminimum distance between the vent and theoutside corner is 6" (15cm) with AstroCaptermination cap or 12" (30cm) with Rigid Venttermination cap. (For example Dura-Vent).For Both Rigid & FlexRear TerminationNOTE: If this is an outside corner, the minimumdistance between the vent and the outsidecorner is 6" (15cm) with AstroCap terminationcap or 12" (30cm) with Rigid Vent terminationcap. (For Example Dura-Vent).For Rigid VentFor Flex VentFor Both Rigid & FlexThe HeatWave Duct Kit has differentclearance and framing requirements,check the HeatWave manual for details.NOTE: Framing is different when using thefaceplate option.See framing section when using faceplate inthis manual.Install Side Nailing Strips, and Top FacingSupport before unit is slipped into position.See "Unit Assembly Prior to Installation"Section