For Vertical Runs

The flue system must be supported every eight

(8)feet (2.4M) above the heater flue outlet by wall brackets.

To install support brackets for vertical runs:

•Attach wall brackets to the flue pipe and se- cure the wall bracket to the framing members with nails or screws.

Use wall brackets to support vertical runs every 8 feet (2.4M) above the heater flue outlet.

WALL BRACKET

WALL STUD

8 FT.

(2.4m)

FLUE

OUTLET

1 INCH MIN.

(25.4mm)

Figure 13 Installing Support Brackets

4. Install Firestops

For Horizontal Runs - Firestops are REQUIRED on both sides of a combustible wall through which the flue passes.

To install firestops for horizontal runs that pass through either interior or exterior walls:

•Cut a 12-inch by 12-inch (305 mm X 305 mm) hole through the wall. The center of the hole is one (1) inch (25mm) above the center of the horizontal flue pipe.

•Position the firestops on both sides of the hole previously cut and secure the firestops with nails or screws.

•The heat shields of the firestops MUST BE placed towards the top of the hole.

•Continue the flue run through the firestops.

FLUE PIPE

Figure 14 Hole and Flue Pipe

HEAT SHIELD

TRIM HEAT SHIELD IF TOO LONG, ADD TO SHIELD IF TOO SHORT

EXTERIOR

FIRESTOP

INTERIOR

FIRESTOP

Figure 15 Heat Shield, Interior and Exterior Firestops

For Vertical Runs - One ceiling firestop is REQUIRED at the hole in each ceiling through which the flue passes.

To install firestops for vertical runs that pass through ceilings:

•Position a plumb bob directly over the center of the vertical flue component.

•Mark the ceiling to establish the centerpoint of the flue.