10" (25.4 cm)
INTERIOR
WALL SHIELD
12" (30.5 cm)
Figure 18. Flue Pipe & Firestop
For Vertical Runs - One 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 verti- cal flue component.
•Mark the ceiling to establish the center point of the flue.
•Drill a hole or drive a nail through this center point.
•Check the floor above for any obstructions, such as wir- ing or plumbing runs.
•Reposition the heater and flue system, if necessary, to accommodate the ceiling joists and/or obstructions.
•Cut a 25.4 cm X 30.5 cm hole through the ceiling, using the firestop pipe opening as a guide.
•Frame the hole with framing lumber the same size as the ceiling joists.
10" (25.4 cm) | 10” (25.4 cm) | |
| ||
| CHIMNEY | |
| HOLE | |
NEW | EXISTING CEILING | |
JOISTS | ||
FRAMING | ||
| ||
MEMBERS |
| |
CEILING |
|
Figure 19. Hole and New Framing Members
Heat & Glo • | 23 |
