Mendota FV41-ARCH, Installation Instructions Manual

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HEARTH PROTECTION PAD REQUIREMENTS
Hearth Protection R Rating: MINIMUM R-1 IS REQUIRED. USE OF A ½” THICK (MINIMUM) CEMENT BOARD (Micore
300 Board ½” thick plus ¼” thick mortar (ThinSet type) plus ¼” thick ceramic tile exceed the R-1 requirement. Use this as
a reference, if in doubt. Natural Stones of 1” thickness with Micore 300 ½” thick board beneath also exceed R-1 rating.
Hearth Pad Guide- [Usage and Removal]
This fireplace is shipped with a Hearth Pad Guide Installed. The purpose of the Hearth Pad Guide is to limit the height of the Hearth
Pad during installations. DO NOT build a Hearth pad that is more than 1-1/2” thick. Doing so will not allow installation of decorative
fronts on this fireplace. After the Hearth pad is built, remove the Hearth Pad guide and discard if you do not wish the guide to be visi-
ble. In some instances, you will want the guide left permanently, based on your aesthetic judgment.
To remove the Hearth Pad Guide, first remove the Glass Frame. Identify the plastic Rivet heads inside the fireplace body. Use a sharp
utility knife to pry or cut the plastic rivet head and rivet base. Lift the Hearth Pad Spacer upwards and remove.
This fireplace may be installed in an elevated position by created an elevated deck and an appropriate framed enclosure.
NOTE: This fireplace may be elevated but MUST allow a minimum of 72” distance between this fireplace’s floor level and
the ceiling of the room.
All hearth pads must be non-combustible (metal, brick, stone, or mineral fiberboard). Do not use any combustible material to pro-
tect the floor in front of this fireplace. For the FV-41, the hearth protection pad must be rated at R-1 minimum AND it must
extend 18 inches in front of the fireplace face if the FV-41 fireplace is installed at floor level.
To achieve this required R-rating, employ ½” thick Micore Mineral Fiber Board 300 as the base substrate on top of the
combustible floor construction or combustible raised hearth structure before you place additional finishing materials or
natural stone products to achieve an R-1.03 rating.
Micore-300 Boards (1/2” thick) are available at local hardware stores in 48” X 24” size.
For applications where you want to attach tiles or stone slabs to the Micore
Mineral Fiberboard 300, cut to size and secure metal lath screen to the top
surface of the Micore board using 1” long screws which penetrate the
screen, Micore board and the combustible floor structure under the Micore
Board.
Proceed by applying ThinSet mortar (with no polymeric additives) which
will not off gas at high temperatures and place tiles or stone slab on the
ThinSet surface.
PRY or CUT RIVET HEAD USING A SHARP EDGE.
REPEAT FOR 4 RIVETS.
18" min. Non-combustible Hearth
protection required [SEE HEARTH
PROTECTION PAD R-RATING, PAGE 12]
1
1
2
" MAX. THICK HEARTH PAD
(MIN R-1 RATING) IS REQUIRED!
NOTE: For every 1" this fireplace is raised off the floor,
the non-combustible hearth protection pad may be reduced
by 2". If this fireplace is raised off the floor more than 6",
No hearth protection pad is required.
FRONT
FIGURE 8