ventING installation | Designer Series Gas Fireplaces |
Horizontal termination configurations | 40 |
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Since it is very important that the venting system maintain its bal- | 38 |
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ance between the combustion air intake and the flue gas exhaust, | 36 |
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certain limitations as to vent configurations apply and must be strictly | 34 |
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adhered to. |
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The Vent Graph, showing the relationship between vertical and horizontal | 30 |
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side wall venting, will help to determine the various dimensions allowable. | 28 |
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Figure 22 |
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Minimum clearance between vent pipes and combustible materials is |
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3" on top and 1" from bottom and sides unless otherwise noted. | 22 |
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When vent termination exits through foundations less than 20" below siding | 20 |
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outcrop, the vent pipe must flush up with the siding. |
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It is best to locate the fireplace in such a way that minimizes the number | 16 |
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of offsets and horizontal vent length. |
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| eg: A | |
The horizontal vent run refers to the total length of vent pipe from the | 12 |
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flue collar of the fireplace (or the top of he Transition Elbow) to the | 10 |
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face of the outer wall. |
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• The maximum number of 90° elbows per side wall instal- |
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lation is three (3). Figure 23 | 20" | 4 |
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• If a 90° elbow is fitted directly on top of the fireplace flange |
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the maximum horizontal vent run before the termination |
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or a vertical rise is 36” (914 mm). Figure 24 |
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Horizontal Dimension From the Outside Face of the | ||||||
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| Figure 22 - Wall to the Center of the Fireplace Vent Flange | |||||
| Rear Wall Venting Graph |
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3 x 90° |
Elbows |
3 x 90° |
Elbows |
FP1176
Figure 23 -
Maximum Three (3) 90° Elbows Per Installation
36" |
(914 mm) |
Max. |
FP1177
Figure 24 -
Maximum Horizontal Run with No Rise
42D0200 | 19 |
