Continue Installing Pipe to Complete Run

Firestop spacers are not available for nor are they re- quired on vertical walls.

DO NOT put any sealant around the area where the outer pipe slides through the ﬁrestop spacer. If you seal this area, it may cause a ﬁre hazard.

Canadian Requirements for

Insulation Shield

In Canada, an attic insulation shield is required to prevent attic insulation from contacting the chimney section. NOTE: If the attic insulation shield is used, the ﬁrestop is not required in the attic installation. Fram- ing dimensions for the chimney hole should measure 14¹⁄₂" x 14¹⁄₂" (368 x 368mm). An attic shield MUST be installed on top of attic joists (above the ﬂoor level). (Fig. 19)

NOTE: In the U.S., it is a good idea, although not al- ways required, to install an attic insulation shield where blown-in insulation is planned to be used in the attic.

Install the attic insulation shield with the ﬂanges on its base extending down into the framing hole. Nail each corner of attic insulation shield to the framing members of the ceiling hole using 8d nails. Attic shields are not required at the roof.

Attic Insulation Shield

Nails

(4 required)

Attic Joist

Base

Ceiling Flanges

FP263

Fig. 19 Attic shield installlation (Canadian requirement).

Continue attaching pipe sections to complete system to next level always being careful that the pipe is ﬁrmly snapped locked in place before proceeding to next pipe section.

Chimney Supports

If chimney supports are required, they are installed the same as elbows. Nail chimney support straps to ad- jacent structural framing, as shown on Figure 9, Page

8.Bend straps as necessary and make sure they are secure so they will support the weight of the chimney.

Majestic Fireplaces® BR/BC Series

A chimney support is 2¹⁄₂" (64mm) long when installed. Consider this dimension when determining how many straight chimney sections are needed.

NOTE: Chimney supports are generally used in long runs in a chase installation.

Additional Ceilings

If you encounter additional ceilings, repeat same steps required for ﬁrst ceiling installation. See ﬁrestop illus- tration on Page 12, Figure 18.

Penetrating the Roof

Run pipe to rooﬂine. Since chimney system must be vented to the out-of-doors, you must use an approved termination.

If a chase is used, refer to the installation manual pro- vided with the termination cap.

Locate Chimney Centerpoint On Roof

Use same procedure detailed in locating center point of the ﬂue system.

Drive a nail up through roof at the center point. This will determine center point on outside of the roof.

Cut and Frame Roof Hole

Size of roof hole varies with the type of chimney termination installed. Refer to installation instructions provided with the chimney termination to ﬁnd correct size of roof hole.

There must be a 1¹⁄₂" (38mm) air space between out- ermost portion of chimney sections and any adjacent combustible surfaces. (Combustible surfaces include burnable materials such as: ceiling members, joists, ﬂooring, combustible insulation and roof structures.)

WARNING: DO NOT PACK REQUIRED AIR SPACES WITH INSULATION OR OTHER MATERIALS.

Mark an outline of the roof hole around the center of the point nail. NOTE: Hole dimensions given in the chimney top installation instructions are horizontal dimensions; therefore, the hole size must be marked on the roof ac- cordingly.

Cover the opening of the installed chimney so debris cannot get into the system.

Cut and frame the hole. It is good practice to use fram- ing lumber that is the same size as the rafters. Install the frame securely because the chimney top and ﬂash- ing anchored to the frame must be able to withstand heavy winds.

7412944