WMC Series Woodburning Fireplace
Framing the Ceiling Hole
Frame the ceiling chimney hole as shown in Figure 13. It is good practice to use framing lumber that is the same size as the ceiling joists; this is a requirement at attic level.
The following table gives firestop spacer model num-
bers:
| Angle of Chimney at Ceiling | ||
Size of Chimney | Vertical | 30° |
|
8" Flue | SKFS2A | SKFS6A | |
"SK" Series | 14¹⁄₂" x 14¹⁄₂" | 14¹⁄₂" x 25¹⁄₂" | |
| (368mm x 368mm) | (368mm x 648mm) | |
8" Flue | FS2A | FS6A | |
| ¹⁄₂" (13mm) |
1¹⁄₂" | Min. Overlap |
FPC557(38mm) |
|
Metal Safety Strips
(1, 2 or 3 Pieces)
Fire- | "Z" |
Place | Safety |
| Strip |
| (not supplied) |
Plat- | Hearth Ext. |
Form |
"S" Series | 17¹⁄₂" x 17¹⁄₂" | 17⁷⁄₈" x 29⁵⁄₈" |
| (445mm x 445mm) | (454mm x 753mm) |
Fig. 12 Ceiling chimney hole sizes necessary for installing firestop spacer.
The inside dimension of the frame must be the same as the hole size selected from Figure 13 in order
to provide required air space between the outside diameter of the chimney and the edges of the framed ceiling hole. (1¹⁄₂" - SK8; 2" - 3 wall)
Existing | See | See |
| ||
Fig. 12 |
| |
Ceiling | Fig. 12 | |
Joists |
|
|
|
| Chimney |
|
| Hole |
Ceiling |
|
|
New Framing |
|
|
Members |
|
|
|
| FP551 |
Fig. 13 Typical frame for ceiling chimney hole. | ||
Positioning, Safety Strips,
Securing The Fireplace
Slide fireplace into position.
Lift the fireplace front slightly and slide the metal safety strips under front bottom edge about 1¹⁄₂" (38 mm), allowing the remainder to extend in front of firebox. Overlap strips at least 1/2" (13 mm) to provide a posi- tive joint. (Flat safety strips are packed with fireplace.) (Fig. 14)
Fig. 14 Safety strip installation.
Safety strips are used to ensure that any combustible materials in front of the fireplace are protected even though a noncombustible hearth extension is required.
If fireplace is to be elevated above the floor, a “Z” shaped metal safety strip must be fabricated and used to protect combustible surfaces in front of the fireplace. This “Z” shaped safety strip is not provided but must be fabricated of metal with each horizontal leg at least 1¹⁄₂" (38 mm) wide and equal in length to the metal strips provided with the fireplace.
Note: Safety strips are not required over noncombus- tible floors where all supports at the base of the fireplace are noncombustible.
Four (4) nailing flanges are supplied with the fireplace (found on the fireplace hearth). To level the box and secure it firmly in place, remove the nailing flanges from the hearth and install at the sides of the fireplace as shown in Figure 15.
| Nail Top |
| Standoffs |
| Nail Side- |
| Nailing |
| Flanges |
| FPC549 |
Fig. 15 | Fasten fireplace in position. |
10 | 20000583 |