Assessments - 2, GPA: 4.5
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Use 8d nails or equivalent (Figure 17). 8d Nail Or Equivalent Fastener Step 4. Fireplace should be fastened to side framing members using the nailing tabs at the top and bottom of the fireplace front face. Use 8d nails or equivalent (Figure 17). 8d Nail Or Equivalent Fastener Figure 17 For Canadian Installations Proceed with Steps 5 through 8 Step 5. Attach the cold climate kit, Model FTF8-CCK1-LD, around the chimney collar with the screws provided (see Figure 18). Note:CCK1-LD model requires a 6" diameter Class 0 metallic air duct, acquired locally by installer. Figure 18 Step 6. Connect the 6" (152 mm) Class 0 metallic air duct to the collar on the chimney collar enclosure with the screws provided in the hardware kit. Step 7. Route the Class 0 metallic air duct out the back wall or side wall, up through the ceiling or floor joists to an outside wall. The air duct’s inlet should be located above any anticipated snow level. Note:If the fireplace is installed against an inside wall, the Class 0 metallic air duct may be extended into a ventilated attic space at least 18" (457 mm) above the attic floor. Secure the duct hood to a vertical post with the inlet positioned downward. Ensure that nothing blocks the hood opening. This air duct must never terminate higher than the fireplace chimney. Step 8. Cut or frame a hole through the outside wall for the installation of the duct inlet hood. A 6-1/2" (165 mm) diameter hole is required. Feed the loose end of the flexible duct through the hole cut for the inlet hood and attach to the collar on inlet hood using two (2) screws. Insert the hood into the opening. Secure in place with nails driven through the holes in hood flange. Seal with noncombustible waterproof silicon type caulking. If additional air duct is needed, use Class 0 metallic duct. INSTALLING THE CHIMNEY SYSTEM Step 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. 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 16and 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) (see Figure 19). Then plumb from ceiling or roof level directly above hole which has just been completed. NOTE: DIAGRAMS & ILLUSTRATIONS NOT TO SCALE. Figure 19 Step 3. Position appropriate firestop spacer at ceiling and nail temporarily with two (2) 8d nails. Use flat firestop spacer, Model F8FS-2, if chimney penetrates ceiling vertically. If chimney penetrates ceiling at 30° angle (offset chimney), use 30° firestop spacer, Model F8FS30. Use one nail on opposite sides to hold firestop spacer in position. Nail permanently, using at least two (2) more 8d nails, after chimney sections have been assembled through the firestop spacer and after any necessary adjustments have been made. Firestop spacer must be secured by at least four (4) 8d nails when completely installed. Note: If there is a room above ceiling level, firestop spacer must be installed on the bottom side of the ceiling. If an attic is above ceiling level, firestop spacer must be installed on top side of ceiling joist (Figures 20 and 21 ). Room Above Figure 20 Firestop Spacer Attic Above Firestop Spacer Figure 21 CHIMNEY 30° OFFSET THROUGH FLOOR OR CEILING CHIMNEY 30° OFFSET THROUGH FLOOR OR CEILING lizer if distance of chimney below ceiling is 10' or more. Maintain 1"* minimum air space to combustibles from chimney sections. Attic Space 2" Min. Air Space 2" Min. 30° FirestopAnd Attic Above Figure 22 Room Above F8FS30-2 Firestop Spacer FTF8-S4 Stabilizer 10' Air Space Max. F8FS30-2 Firestop Spacer 2" Min. Air Space 2" Min. FTF8-S4 Stabilizer Air Space 10' 30° Firestop Max. And Room Above Figure 23 For Canada Only When installing the chimney system through an open attic space, the attic shield assemblyfirestop spacer must be used (Figure 24). This installation is required only for use in Canada. Open Attic Space Figure 24 Note: For Canadian installations, all chimney installed outside the building must be constructed with galvalume (outer sections only) effective January 1, 1992. The appropriate model designations are located in the back of this man...
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