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Unit With Site-Built Non-Combustible Hearth Extending
When using Optional Trims and
Mantels, Surface of Finished
Hearth Must Be Flush With
Bottom of Fireplace
(otherwise, optional trims will not fit)
Raised 4"
above combustible floor
Raised 3"
above combustible floor
Raised 2"
above combustible floor
Raised 1"
above combustible floor
Bottom of
fireplace
Wood is Allowed
Directly Below Fireplace
Non-combustible substrate
construction detail
Note: This surface can get
very hot if flush with bottom
of heater. We recommend
raising the heater.
Bottom of
Bottom of
fireplace
fireplace
Wood is Allowed directly below fireplace
ood is Allowed directly below fireplace
Note: Any shims used underneath to raise the
ny shims used underneath to raise the
heater should be set back 1/2" behind front face of
d b
t b k 1/2" b hi d f
framing otherwise topface of shims may be visible
Hearth Requirements
Front of Fireplace
(Surface of Cement Board)
Surface of Hearth
(non-combutible material on
non-combustible insulation board
see diagram below)
3"
6"
Hearth projection
DO NOT FINISH ABOVE
THIS HEIGHT!
(Hearth MUST be at this height
when using certain accessories
and trims)
See Chart above for Required Projection
t f
f
Example: If the fi replace is raised 2" above
combustible fl oor, the non-combustible-
fl ush-with-bottom-of-fi replace hearth must
project a min. of 6" in front of the fi replace.
Min. Hearth Projection
Required to Protect
Combustible Floor
9"
12"
1/2" Insulation
Board supplied
Non-Combustible
with fireplace
Finish
QUALIFIED
INSTALLER
4"
3"
2"
1"
Surface of
Combustible
Floor or Carpet
Surface of
Surface of
Combustible
Combustible
Floor or Carpet
Floor or Carpet
27
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