Hearth Installation - MHSC STR36 DESIGNER Installation And Operating Manual

Minimum Wall Clearances
WITH
Noncombustible
Surround Facing
4" BRICK
(Example material)
E
F**
A - Min. clearance
C**
to combustible
perpendicular wall
Side
B - Min. clearance
Wall
to combustible
perpendicular wall when
using noncombustible wall shield*
Combustible material permitted within shaded area.
* Noncombustible wall shield requires 1" MHSC
EH2416 insulation (minimum R Value = 1.09) between
decorative noncombustible rigid covering and combustible wall.
Minimum height and width is 40" x 40".
** Dimension/degree of angle will vary depending on thickness
of noncombustible surround facing.
F
Fig. 24

Hearth Installation

Note: Hearth extension must not cover the air inlet
opening of a fireplace.
F
F
7412961
WITHOUT
Noncombustible
Surround Facing
Shaded area starts
1/2" away from
edge of unit
Firebox
Opening
F
F
F
or
STR36 Designer Woodburning Fireplaces
Minimum Hearth Extension Dimensions
(for On-Site Construction)
G
H
4"
E
D
May install
noncombustible
decorative
Side
covering
Wall
OR .018" min.
sheet metal
4" MIN.
Combustible
Floor
F
FP714
WARNINg: HeARTH eXTeNSION MUST be IN-
STR/CVR
STALLeD IN ACCORDANCe WITH FIgUReS 24 AND
6/4/98
25.
F
N
G
J
Seal cracks
between the
fireplace
and hearth
extension with
noncombustible
material
Fireplace
Hearth
Minimum Safety strips
Insulation
must overlap
Value "R"
" minimum
/