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
Non-combustible substrate
construction detail
Bottom of
Bottom of
fireplace
fireplace
Directly Below Fireplace
Directly Below Fireplace
Using 616/617STK Stone Trim Kits
Bottom of
fireplace
Directly Below Fireplace
14
Hearth Requirements
Front of Fireplace
(Surface of Cement Board)
Wood is Allowed
Directly Below Fireplace
DO NOT FINISH ABOVE
THIS HEIGHT!
(Hearth MUST be at this height
when using certain accessories)
Wood is Allowed
Wood is Allowed
Wood is Allowed
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.
Surface of Hearth
(non-combutible material on
non-combustible insulation board
see diagram below)
3"
6"
Non-Combustible
Finish
See Chart above for Required Projection
616STK/617STK
Leg & Hearth
Combustible
Floor Allowed
2 "
Air Gap
Min. Hearth Projection
Required to Protect
Combustible Floor
Combustible
9"
12"
Floor or Carpet
Surface of
Surface of
Combustible
Combustible
Floor or Carpet
Floor or Carpet
1/2" Insulation
Board supplied
with fireplace
Surface of
Combustible
Floor or Carpet
4"
3"
2"
1"
Surface of