24 | Regency Horizon ® HZ54E-10 Gas Fireplace|24installationVENTING ARRANGEMENTSALLOWABLE HORIZONTALTERMINATIONS FOR HZ54E-NGThe diagram shows all allowable combinations of vertical runs with horizontalterminations, using one 90 o (two 45o elbows equal one 90o elbow).Note: Must use optional rigid pipe adapter (Part# 770-994) when usingRigid Pipe Venting Systems.VENTING ARRANGEMENTSALLOWABLE HORIZONTALTERMINATIONS FOR HZ54E-LPThe diagram shows all allowable combinations of vertical runs with horizontalterminations, using one 90 o (two 45o elbows equal one 90o elbow).Note: Must use optional rigid pipe adapter (Part# 770-994) when usingRigid Pipe Venting Systems.• Maintain clearances to combustibles as listed in "Clearances"section• Horizontal vent must be supported every 3 feet.• Firestops are required at each floor level and whenever passingthrough a wall.• A wall thimble is mandatory for all horizontal terminations dueto high temperatures.• Maintain clearances to combustibles as listed in "Clearances" section• Horizontal vent must be supported every 3 feet.• Firestops are required at each floor level and whenever passingthrough a wall.• A wall thimble is mandatory for all horizontal terminations due tohigh temperatures.VENT RESTRICTOR SETTING:Vent restrictor factory set, no adjustment required unless otherwiseindicated.Refer to the "Vent Restrictor Position" section for details on how tochange the vent restrictor from the factory setting of Set 1 to Set 2 orSet 3 if required.VENT RESTRICTOR SETTING:Vent restrictor factory set, no adjustment required unless otherwiseindicated.Refer to the "Vent Restrictor Position" section for details on how to change thevent restrictor from the factory setting of Set 1 to Set 4 if required.Note: Regency ® Direct Vent System (Flex) is only approved forhorizontal terminations. Note: Regency® Direct Vent System (Flex) is only approved for horizontalterminations.22001212 2066 14444 (1118mm)Minimum HeightRequirement41488 161010 18Vertical Height (Feet)Horizontal (Feet)Vent Restrictoron Set 2Vent Restrictoron Set 3Vent Restrictoron Set 1(factory setting)161822001212 2066 14444 (1118mm)Minimum HeightRequirement41488 161010 18Vertical Height (Feet)Horizontal (Feet)Vent Restrictoron Set 4Vent Restrictoron Set 1(factory setting)1618