FIREPLACE FRAMING SPECIFICATIONS
**FRAMING WITH SQUARE HORIZONTAL TERMINATIONS (SV4.5HTSSL, SV4.5HTSS or SV4.5HTS)
AND ROUND HORIZONTAL TERMINATION (SV4.5HTR)
VENT FRAMING - TOP VENT WITH ONE 90° ELBOW
VENT FRAMING -
REAR VENT WITH
NO ELBOWS
37¹⁄₈
33¹⁄₄(943)
(845)
19⁵⁄₈
(498)
16⁵⁄₈ (422) 
10¹⁄₂ (267)
7
5¹⁄₈ (178)
(130)
7
(178)
5¹⁄₈
(130)
*12⁷⁄₈
(327)
12¹⁄₈
(308)Framing should be constructed of 2x4 or larger lumber.
*12⁷⁄₈ inches (327 mm) is the required
framing depth dimension when the finish
12¹⁄₈material (drywall) thickness is 1/2 in.
(308)
(13mm).
**See the horizontal venting Figures 35 and 36 on page 16 for restrictions on the use of the round termination (SV4.5HTR)
Inches (mm)
Figure 9
33¹⁄₄
(845)
Note-
Venting requirements for rear vent applications in corner installations -
- the round termination (SV4.5HTR) may not be usedSV4.5HTS Termination - the horizontal vent length “a” to “b,” must not exceed 28 inches (711 mm)
b
Framing should be constructed of |
|
|
2x4 or larger lumber. | SV4.5HTSS & SV4.5HTSSL | 7 (178) |
| ||
*These dimensions occur when one 45 | Termination |
|
|
| |
degree elbow is connected directly to the | *F = 5 in. | b |
appliance collar and the unit moved ¹⁄₂ in. | ||
(13 mm) into the room. This ¹⁄₂ in. | (127 mm) |
|
movement is required to achieve a min. of |
| 8³⁄₁₆ (208) |
5 in (127 mm) in the F dimension. |
|
|
*34⁵⁄₁₆ |
|
|
(872) |
| *24¹⁄₄ |
|
| (616) |
| a | *17³⁄₁₆ |
| (437) | |
| 33¹⁄₈ |
|
| (841) | Inches |
|
| |
| *48¹⁄₂ | (millimeters) |
| (1232) |
|
Back wall of chase/enclosure (including any finishing materials)
CORNER FRAMING WITH SQUARE HORIZONTAL
TERMINATIONS (SV4.5HTSSL, SV4.5HTSS or SV4.5HTS)
Figure 10
NOTE: DIAGRAMS & ILLUSTRATIONS NOT TO SCALE. | 7 |