Quadra-Fire QFP38-LP Indoor Fireplace User Manual


 
Quadra-Fire • QFP38 Series • 4061-300 Rev i • 9/0934
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To replace the rst starter elbow with two 45° elbows, refer to Figure 7.4. All other 90° elbows can be replaced with two 45°
elbows.
General Rules:
SUBTRACT 3 ft. from the total H measurement for each 90° elbow installed horizontally.
SUBTRACT 1-1/2 ft. from the total H measurement for each 45° elbow installed horizontally.
A maximum of three 90° elbows (or six 45° elbows) may be used in any vent con guration. Some elbows may be installed
horizontally. See Figure 7.5.
Elbows may be placed back to back anywhere in the system as long as the rst 90° elbow is a starter elbow except as
shown in Figure 7.4.
When penetrating a combustible wall, a wall shield restop must be installed.
When penetrating a combustible ceiling, a ceiling restop must be installed.
Horizontal runs of vent do not require vertical rise; horizontal runs may be level.
E. Vent Diagrams
Figure 7.3
One Elbow
1. Top Vent - Horizontal Termination
V1 Min. V1 Max. H1 Max.
feet 1-5
meters 0.30 1.52
feet 2-10
meters 0.61 3.05
feet 3-15
meters 0.91 4.57
feet 4-20
meters 1.22 6.10
feet 25 20
meters 7.62 6.10