Osburn Horizon OB04010, Installation And Operation Manual

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38 HORIZON – Installation and Operation Manual
6.3.5.3 Option #3 - Installation on a more than 8" raised base
• When installed on a more than 8 " (203 mm) raised base (C) , A 2.00 R value for the hearth extension is
required. The non-combustible hearth extension floor area must extend at least 16" (406 mm) (B) in
front of the hearth.
• The joint between the hearth extension and the fireplace
(E)
, for the entire width of the floor
protection, must be protected by a bent and continuous piece of sheet metal (not included).
• An 84" clearance between the fireplace base and the ceiling (A) must be respected.
MINIMUM MEASUREMENTS
A 84" (2134 mm)
B 16" (406mm)
C More than 8" (203 mm)
E
2" (51 mm)