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