Step 1. Framing; Framing Specifications - Lennox Hearth Products Adagio ADAGIO-EN Installation Instructions Manual

Direct-vent gas fireplace heaters
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Step 1. FRAMING

Frame these appliances as illustrated in Figure
9, unless the appliance is to be installed in a
corner.
See Figure 10 for corner framing installations.
All framing details must allow for a minimum
clearance to combustible framing members as
shown in Table 6 on Page 6.
If the appliance is to be elevated above floor
level, a solid continuous platform must be
constructed. Headers may be in direct contact
with the appliance top spacers but must not
be supported by them or notched to fit around
them. All construction above the appliance must
be self supporting, DO NOT use the appliance
for structural support.
The fireplace should be secured to the side fram-
ing members using the unit's nailing flanges on
each side of the fireplace front. See Figure 8.
Use 8d nails or their equivalent.
Use Top Flange For
5/8" Thick Drywall
Use Center Flange For
1/2" Thick Drywall
Use Bottom Flange
For Flush Mount
Left Side Front Corner of Fireplace Shown
(Right Side Requirements the Same)
Unit Being Secured By Its Nailing
Flanges To The Framing
Frame the opening to the exact dimensions
specified in the framing details in this manual.
Figure 8
FIREPLACE FRAMING SPECIFICATIONS
VENT FRAMING -
TOP VENT WITH ONE
90° ELBOW
2 x 4 Header must be
installed, vertical as shown
to allow proper clearance
from venting components to
combustible header. See
Figure 50 for more
details.
B
Platform
**
A
Framing should be
constructed of 2x4
or larger lumber
The platform should extend the full width
and depth of the fireplace base.
Figure 9 - Framing
Inches (mm)
Top Vent With Horizontal
Termination In A Corner
u
When installing in a corner configuration, one of
Back wall of chase/enclosure
the rear stand-offs will need to be removed.
(including any finishing materials)
in.
mm
Figure 10 -
Corner Framing with Square Termination (SV4.5HT-2)
NOTE: DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE.
Framing With Platform
10-1/2
(
)
267
Inches (mm)
8
(203)
5-1/8
(130)
D*
C
3/4" Minimum from
Finished Floor
in.
mm
D
C
A
B
(millimeters)
Corner Framing Dimensions - All Models
A
B
C
22-1/8
41-5/8
29-1/2
562
1057
749
* D shown here is not
dimensioned to the vertical
center of the horizontal
framing. This is to allow for
the required 4" clearance
above the vent and the 1"
required clearance below
13-1/8
the vent. This does not
(333)
include the suggested 1/4"
rise per foot for horizontal
runs.
** With the facade installed
(required - sold sepa-
rately), the appliance base
will need to be elevated a
minimum of /4" above the
floor to allow for the proper
fit of the facade (i.e. use
/4" board minimum as
platform).
Framing Dimensions - All Models
A
B
C
D
22-1/8
40-1/4
15-/4
44-1/8
562
1022
400
1121
7 (178)
E
Inches
D
E
10
20-7/8
254
50
9

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