16
Note: A 1" air space must be preserved for all combustible materials extending for any con- tinuous length adjacent to the chimney.
It is especially important to insulate between the studs of an outside chase cavity and under the floor if the floor is above ground level. Do not place insulation directly against the fireplace or chimney system.
Glass Doors
Glass doors have been installed on these fireplaces as standard equipment. Shipping and transit may have moved them out of alignment.
The doors are properly adjusted when the top door trim is in a straight, level line and the gap between the doors is even at the top and bottom. If adjustments are required, grasp the door handle and loosen the lower door pivot pin using a 3/8” open end wrench*. Slide the door panel on the hinge pin until the gap between the upper door trim and upper frame is even. Retighten the lower door pivot pin*. Repeat this procedure for the opposite door if needed (Figure 40).
Spring Clip |
| Upper Door |
|
| Guide Track |
| Pivot Pin | Roller |
| Pin | |
|
| |
Figure 40 |
|
|
*Note: Upper door pivot pins can also be loosened for adjustment purposes; however, it is easier to loosen lower pins.
FIREPLACE FINISHES
Mantels and Trim
It is sometimes best to frame your fireplace after it is positioned and the chimney is installed. Frame enclosure for chimney and fireplace with materials of suitable grade and size as dictated by the prevailing constructions standards for the structure in which the fireplace system is to be located within.
Note: The header may rest on the two (2) metal top spacers on top of the unit but the header must not be notched to fit around the spacers.
These fireplaces may sit directly on a combus- tible surface. A 1" air space is required between framing, insulation, building materials and the chimney. A 1" air space is required between framing, insulation, building materials and the fireplace outer wrapper.
Combustible mantels and trim may be installed 12" above the fireplace opening as per NFPA
12" | Finished |
Wall | |
Max. |
|
| 1 1/2" |
| Header |
Combustible | Spacer |
Mantel |
|
and Trim |
|
12" |
|
Min. |
|
9 5/8" |
|
| Fireplace |
| Opening |
Typical Installation |
Figure 41
NOTE: DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE.
Hearth Extensions and Wall Shields
A hearth extension must be installed with all fireplaces. Its purpose is twofold. It protects a combustible floor in front of the fireplace from both radiant heat and sparks and it distinguishes the prescribed hearth extension area from other
The hearth extension must extend 16" beyond the front and 8" beyond both sides of the fireplace opening. Use a hearth extension constructed of a durable noncombustible material having an equal or better (lower k value) insulating value of k = .84 BTU IN/FT2 HR °F or a thermal resistance that equals or exceeds r=1.19 HR °F FT2/BTU IN. A minimum 3/8" (10 mm) thick noncombustible material is all that is required over a noncombustible or slab floor.
If there is a continuous perpendicular side wall closer than 12" (305 mm) from the fireplace opening, it must be protected with a 24" x 30"x 1/2" (610 mm x 762 mm x 13 mm) wall shield (see Figure 42) constructed of a durable, noncombustible material having an equal or better (lower k value) insulating value than k =
.84 BTU IN/FT2 HR °F. A continuous protected side wall can not be closer than 7" (178 mm) from the side of the fireplace opening.
Secure the hearth extension to the floor to prevent possible shifting.
If the fireplace is installed on a combustible floor, use the metal safety strips (provided) on the floor extending half under the fireplace and half under the hearth extension (refer to