Fireplace framing specifications – TOA Electronics DIRECT VENT 600 User Manual
Page 7
7
NOTE: DIAGRAMS & ILLUSTRATIONS NOT TO SCALE.
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C
Back wall of chase/enclosure
(including any finishing materials)
a
7 (178)
b
Note-
Venting requirements for rear vent applications in corner
installations -
- the the round termination (SV4.5HTR) may not be used
- the horizontal vent length “a” to “b,” must not exceed 28
inches (711 mm)
Inches
(millimeters)
*These dimensions occur when one 45
degree elbow is connected directly to the
appliance collar.
D and DR units
D and DT units
*D
E
*F
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A
B
D
7
(178)
5
¹⁄₈
12
¹⁄₈
(308)
10
¹⁄₂
(
267
)
C
VENT FRAMING -
TOP VENT WITH ONE
90
°
ELBOW
VENT FRAMING -
REAR VENT WITH
NO ELBOWS
Framing should be constructed
of 2x4 or larger lumber.
Inches (mm)
(130)
5
¹⁄₈
(130)
7
(178)
16” (406mm) is the required framing depth dimension when
the finish material (drywall) thickness is 1/2 in. (13mm).
¹⁄₂ A
**FRAMING WITH SQUARE HORIZONTAL TERMINATIONS (SV4.5HTSS or SV4.5HTS)
AND ROUND HORIZONTAL TERMINATION (SV4.5HTR)
** See the horizontal venting Figures 33 and 34 on page 16 for restrictions on the use of the
round termination (SV4.5HTR).
12
¹⁄₈
(308)
16
(406)
Figure 9
Figure 10 Corner Framing with Square Termination (SV4.5HTS)
Framing Dimensions
FIREPLACE FRAMING SPECIFICATIONS