11
WARNING
DO NOT RECESS THE VENT CAP INTO WALL OR SIDING.
IMPORTANT
Horizontal vent sections require 1/4 in. (6 mm) rise for every 12 in. (305 mm) of travel.
Vent cap location must be in compliance with the guidelines 11.9 Vent Cap Location Clearances, on page 24.
CAUTION
Cold air transfer area. The surrounding fireplace chase must comply with all clearances as outlined in this manual and be
constructed in compliance with local building codes. Outside walls should be insulated to prevent cold air from entering room.
4.2
Floor Support and Protection
Determine the exact position of your fireplace, including hearth height, width, and depth. If possible, place the fireplace in
such a manner that the vent termination will be placed between two studs, thus eliminating the need for additional framing.
If masonry is to be used (optional), prepare the necessary foundation for the masonry load. When masonry construction is
being used, a lintel must be used over top of fireplace to support the added weight.
Consider the height of hearth finish material (stone, brick, etc.) when building a fireplace platform. The bottom of the
fireplace must be level with finished hearth.
Build the hearth to desired size and height. If a hearth extension is desired, combustible material may be used.
Above floor level installations: A solid, continuous platform must be constructed below the appliance.
MINIMUM PLATFORM SIZE: 55-1/4 in. (1403 mm) wide x 19 in. (482 mm) deep.
WARNING
Install the fireplace on a hard metal or wood surface that extends the full width and depth of fireplace.
FIRE HAZARD
Do NOT install directly on carpeting, vinyl, or any combustible material other than wood.
4.3
Vent Termination Framing
Figure 4.2, Min. Horizontal Termination
(Natural Gas)
Figure 4.4, Horizontal Flex Pipe
Vent Termination
Figure 4.3, Min. Horizontal Termination
(LP Gas)
Vertical
Vent Terminations:
Follow vent pipe manufacturer’s installation instructions for vertical vent termination framing.
A minimum of 1 in. (25 mm) clearance on all sides of the vertical vent pipe must be maintained.
Horizontal
Vent Terminations:
Framed openings illustrated in Figures 4.2—4.4 are measured from the bottom of the fireplace
enclosure floor to the center of the pipe to maintain vent system clearances.
A wall thimble with a 1 in. (25 mm) clearance for all vent sides is required for all horizontal vent runs.
48”
(1219mm)
52-1/2”
(1334mm)
19”
(483 mm)
19”
(483 mm)
56”
(1422mm)
19”
(483 mm)
