VENTING INSTALLATION | LX Series Direct Vent Gas Fireplace |
40'
Maximum
Height
8'
10' Maximum Minimum
Height
Support Straps Every 3'
INSTALLATION FOR VERTICAL TERMINA- TION
1.Determine the route your vertical venting will take. If ceiling joist, roof rafters or other framing will obstruct the venting system, consider an offset. Figure 29 to avoid cutting load bearing members.
Roof Flashing
Wall Strap
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| 10' Maximum |
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| Straps | ||||
40' |
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| Every 5' | |||||||||
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| Vertical | ||||||
Height |
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8' |
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Minimum |
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Height |
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| Support Straps Every 3' |
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FP1183 |
FP1669
Figure 29 -
45° Elbows
Ceiling Firestop
Figure 27 - |
Support Straps for Horizontal Runs
Offset with Wall Strap and 45° Elbows
1 |
2 |
3 |
4 |
Figure 28 -
Maximum Elbow Usage
Example: Elbow 1 = 90°
Elbow 2 = 45°
Elbow 3 = 45°
Elbow 4 = 90°
Total Angular = 270°
Variation
1 |
2 |
3 |
4 |
FP1179 |
NOTE: Pay special attention to these installation instructions for required clearances (air space) to combustibles when passing through ceilings, walls, roofs, enclosures, attic rafters, etc. Do not pack air spaces with insulation. Also note maximum vertical rise of the venting system and any maximum horizontal offset limitations. Offsets must fall within the parameters shows on Page 16, Figure 13.
2.Set fireplace in desired location. Drop a plumb line down from the ceiling to the position of the flue exit. Mark the center point where the vent will penetrate the ceiling. Drill a small locating hole a this point.
Drop a plumb line from the inside of the roof to the ceiling locating hole in the ceiling. Mark the center point where the vent will penetrate the roof. Drill a small locating hole at this point.
FLAT CEILING INSTALLATION
1.Cut a 9Z\x" (241 mm) square hole in the ceiling using the locating hole as a center point The opening should be framed to 9Z\x" x 9Z\x" (241 x 241 mm) inside dimensions as shown in Figure 31 using framing lumber the same size as the ceiling joist. If the area above the ceiling is an insulated ceiling or a room, nail firestop from the top
51D0528 | 21 |
