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Heatilator • Birmingham 42-B Installation Manual • 4059-715 • Rev P • 09/28/15
1 in. (25 mm) overlap
Minimum
Metal strips are placed 2 in. (51 mm)
under the front of the fireplace and must
extend beyond the front and sides of
fireplace opening by 2 in. (51 mm).
Raised Platform
Floor
2 in.
(51 mm)
1 in. (25 mm) min.
overlap
2 in.
(51 mm)
Top piece must overlap
bottom piece
Figure 3.7 Protect the Front of an Elevated Platform
F. Protective Metal Hearth Strips
Figure 3.6 Position the Protective Metal Hearth Strips
• Locate the two protective metal hearth strips measuring
approximately 26 in. x 4 in. (660 mm x 102 mm) included
with this fireplace.
• Slide each metal strip 2 in. (51 mm) under front edge of
fireplace.
• Overlap strips in the middle of fireplace opening by 1 in.
(25 mm) minimum.
• Metal strips must extend beyond the front and sides
of the fireplace opening by at least 2 in. (51 mm),
Figure 3.6).
• Protect the front of a platform elevated above the hearth
extension with metal strips (not included with fireplace)
per Figure 3.7. See
Section 7 for hearth extension
instructions.
WARNING!
Risk of Fire!
Protective metal hearth
strips MUST be installed on combustible surfaces.
DO
NOT
cover metal strips with combustible materials.
Sparks or embers may ignite flooring.
WARNING!
Risk of fire!
High temperatures, sparks,
embers or other burning material falling from the
fireplace may ignite flooring or concealed combustible
surfaces.
• Protective metal hearth strips MUST be installed.
• Hearth extensions MUST be installed exactly as
specified.
WARNING! Risk of Fire!
Prevent contact with sagging,
loose insulation.
•
DO NOT
install against vapor barriers or exposed
insulation.
• Secure insulation and vapor barriers.
• Provide minimum air space clearances at the sides and
back of the fireplace assembly.
E. Secure and Level the Fireplace
This fireplace may be placed on either a combustible or
noncombustible continuous flat surface. Slide the fireplace
into position. Be sure to provide the minimum 1-1/2 in.
air clearance at the sides and 1-1/2 in. at the back of the
fireplace.
The fireplace should be positioned so the face of the non-
combustible material on the fireplace will be flush with the
face of the drywall on the walls.
Level the fireplace and shim as necessary.
