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Version: 6.0
21
HEARTH EXTENSION REQUIREMENTS
The Inglenook Fireplace can be installed directly on a combustible or non-combustible base or
directly on the floor. If the customer chooses, the Inglenook Fireplace can be elevated off the floor as
long as the requirements in paragraph 3 on page 18 are maintained between the base of the appliance
and the ceiling above the appliance. In addition, if the hearth is elevated in reference to the fire
chamber, the hearth extension cannot be elevated any higher than the bottom of the lower grill.
A combustible floor in front of the fireplace must be covered with tile, marble, stone or any other
non-combustible material. Figure 10 demonstrates the vertical relationship between the fireplace, the
sealing strip and the hearth extension. WARNING: A hearth extension is to be installed only as
illustrated in Figure 10 and in conformance with any local building codes. It is recommended that
either a sealing strip or sand-cement grout be used between the hearth and the on-site construction
hearth extension. Country Flame provides a non-combustible sealing strip for use in the hearth
extension. All hearth extensions must have an R-value of 2.0 or greater to ensure proper floor
protection. If thermal conductivity (k-factor) or thermal conductance (C-factor) is used instead of
thermal resistance (R factor) the use the relationships as follows a) k-factor is given with required
thickness (T) in inches as R = 1/k x T or b) C-factor is given as R = 1/C.
FIGURE 10: INGLENOOK FIREPLACE HEARTH EXTENSION REQUIREMENTS
FRAMING, FACING, & MANTEL
The construction of the framing, facing, and mantel must be in accordance with approved
construction industry standards and local building codes. The following steps, along with the sample
illustrations shown in Figure 11 through Figure 12 are offered as suggestions on how to handle
installation.
1. Frame the fireplace using 2” x 4” or heavier lumber. See Figure 11 for an example of rough-
in dimensions of the Inglenook Fireplace.
2. WARNING
: Combustible material cannot be used in the space directly above the fireplace.
This area must remain empty for a height of 7 feet
measured from the base/floor of the
appliance to the ceiling containing the combustible material above.