Step 4. Fireplace should be secured to side framing members using the full length nailing tabs at the top and bottom of the fireplace front face. Use 8d nails (Figure 17 ).
8d Nail
Figure 17
Note: The nailing tabs and the area directly behind the nailing tabs are exempt from the clearances described on page 5. Maintain at least 1/2" clearance from the firebox wrapper to the framing at the closest point of contact, directly adjacent to the flange.
For Canadian InstallationsA cold Climate Kit
Step 5. Install the Cold Climate Kit to the fireplace following the instructions provided with the kit, (Figure 18 ).
Figure 18
8
Step 6. Connect the 6" (102 mm) Class 0 air duct provided by installer, to the duct collar on the fireplace and secure with two (2) screws from the kit’s hardware package.
Step 7. Route the Class 0 air duct out the back or side wall, up through the ceiling or floor joists to an outside wall. The air inlet hood should be located above snow level or above any anticipated snow level, (Figure 19 ).
Install As Shown With
Opening In Downward
Position Do Not Block
Entrance
5 Foot Min. Height
From Outside
Ground Level
Figure 19
Note: If the fireplace is installed against an inside wall, the class 0 air duct may be extended into a ventilated attic space at least 18" (475mm) above the attic floor. Secure the air inlet hood to a vertical post with the inlet positioned downward. Ensure that nothing blocks the hood opening. This hood must never terminate higher than three (3) feet below the termination.
Step 8. Cut or frame a hole through the outside wall for the installation of the air inlet hood. A 6- 1/2" diameter hole is required. Feed the loose end of the flexible duct through the hole and attach to the collar on the air inlet hood using two
(2)screws from the kit's hardware package. Insert the hood into the opening. Secure the inlet hood in place with nails driven through the holes in the flange. Seal with noncombustible water- proof silicon type caulking.
INSTALLING THE CHIMNEY SYSTEMStep 1. Before continuing, check the operation of the damper, as described on page 4, (refer to Figure 3 ).
Step 2. Using standard construction framing techniques, construct opening for chimney route up through the ceiling(s) and roof or through an outside chase.
Framing must maintain adequate minimum air space clearance at all times.
NOTE: DIAGRAMS & ILLUSTRATIONS NOT TO SCALE.
CAUTION: ALLOW MINIMUM 1"* CHIMNEY AIR SPACE TO COMBUSTIBLE FRAMING MEMBERS THROUGHOUT VERTICAL OR OFFSET CHIMNEY INSTALLATION.
A minimum 1"* air space must be reserved for all combustible materials extending for any continuous length surrounding the chimney.
*Note: 2" clearance to combustibles required in Canada.
Reference Figures 15 and 16 and charts Framing Dimensions for Ceiling and Roof, which specify minimum ceiling and roof dimensions.
In new construction, to determine chimney center line, use plumb line from roof or ceiling above fireplace to center of flue collar on fireplace.
For remodeling, plumb to center of flue collar from ceiling above, drive nail through ceiling from below to mark position, then mark and cut to passage from above ceiling (around nail) (Figure 20 ). Then plumb from ceiling or roof level directly above hole which has just been completed.
Figure 20
Step 3. Position appropriate firestop spacer at ceiling and nail temporarily with two (2) 8d nails. Use flat firestop spacer, Model