HDV Series Direct Vent Gas Fireplace | venting installation |
termination clearances for buildings with combustible and noncombustible exteriors
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| Combustible = |
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| 6" (152 mm) |
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| V |
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| 2” (51 mm) |
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Inside Corner
G
V 
G = Combustible 24"(610 mm) Noncombustible 18"(457 mm)
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| Combustible |
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| V |
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| 6" (152 mm) | |||||||
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| F |
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| 2” (51 mm) | |
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Outside Corner
H |
V |
J |
Combustible & |
Noncombustible |
H = 24" (610 mm) |
J = 20" (508 mm) |
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C | C |
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V 
E 
C = Maximum depth of 48" (1219 mm) for alcove location
D = Minimum width for back wall of alcove location Combustible - 38" (965 mm) Noncombustible - 24" (610 mm)
E = Clearance from corner in alcove location
Combustible - 6" (152 mm) Noncombustible - 2" (51 mm)
Balcony with No Side Wall | Balcony with Perpendicular | Alcove Location |
Figure 12 - | Side Wall |
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Allowable Venting Chart |
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How To Use The Vent Graph
The Vent Graph should be read in conjunction with the following vent installation instructions to determine the relationship between the vertical and horizontal dimensions of the vent system.
1.Determine the height of the center of the horizontal vent pipe exit- ing through the outer wall. Using this dimension on the Sidewall Vent Graph below, locate the point intersecting with the slanted graph line.
2.From the point of this intersection, draw a vertical line to the bottom of the graph.
3.Select the indicated dimension, and position the fireplace in accordance with same.
Example A: If the vertical dimension from the floor of the fireplace is 11' (3.4m) the horizontal run to the face of the outer wall must not exceed 14' (4.3m).
Example B: If the vertical dimension from the floor of the unit is 7' (2.14m), the horizontal run to the face of the outer wall must not exceed 8Z\x' (2.6m).
Sidewall Vent Graph showing the relationship between vertical and horizontal dimensions for a Direct Vent flue system.
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Feet | 32 |
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in |
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Dimensions |
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24 |
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| Horizontal | |
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| Vent | |
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48Z\v" |
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| eg: A | Pipe | |
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Floor to |
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Center | 10 |
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| 8 |
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| 2 | 4 | 6 | 8 10 1214 16 1820 |
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Vertical Dimension From the Floor of Unit to the Center of the
Horizontal Dimension From the Outside Face of the to the Back of the Fireplace
Figure 13 -
Rear Wall Venting Graph
Wall
16 | 56D3048 |
