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.
