Osburn STRATFORD II OB04007 Installation And Operation Manual page 33

8.5.1 Fireplace Framing
Framing dimensions should be used as a reference only
If a finishing material is installed inside the
enclosure, its thickness must be added to the
following measurements.
− Framing width 37 ¾" (960 mm)
− Framing height to the first header 41 ⅝" (1057
mm)
− Framing depth 24 ⅞" (632 mm)
− Framing total height 80" (2032 mm)
8.5.2 Framing with Fresh Air Intake
If a finishing material is installed inside the enclosure, its thickness must be added to the following
measurements.
A : Fresh air intake duct
B : Distance between framing and side fireplace standoff 12" (305 mm)
C : Framing width (Installation with centered fireplace) 60 ¾" (1543 mm)
Framing dimensions are for reference only. These measurements are recommended to prevent the ducts from being inside the standoff or have
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too tight duct curves. Smaller dimensions can be used depending on the size and type of duct as well as the configuration of the installation.
14 HVAC duct, as per ULC S110 or UL 181, class 0 or class 1, must withstand temperatures up to 250oF.
Installation and Operation Manual - Stratford II
13
C
(Fresh air intake can be installed on the right or underneath).
14
80"
24 ⅞"
B B
A
41 ⅝"
37 ¾"
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