D. Install Attic Insulation Shield
WARNING! Fire Risk. DO NOT allow loose materials or insulation to touch vent. Hearth & Home Technologies Inc. requires the use of an attic shield.
The National Fuel Gas Code ANSI Z223.1 and NFPA 54 requires an attic shield constructed of 26 gauge minimum metal that extends at least 2 in. (51 mm) above insulation.
Attic shields must meet specified clearance and be se- cured in place.
Flat Ceiling Installation
• Remove one shield from box.
NOTICE: Cut previously installed batt insulation to make room for the attic insulation shield.
• | Wrap shield around pipe if pipe is already installed in |
| area to be insulated. |
• | Match the three holes in each side and fasten with three |
| screws to form a tube. |
• | Bend three tabs on the bottom of the shield outward to |
| allow attachment to the ceiling firestop. |
• | Bend the remaining bottom tabs inward 90º to maintain |
| the air space between the pipe and the shield. Set the |
| shield on the ceiling firestop and attach to the firestop. |
BEND ALL TABS INWARD 90° TO MAINTAIN CLEARANCE AND PREVENT INSULATION FROM FALLING INSIDE
INSERT 3
SCREWS
Figure 8.5 Attic Insulation Shield
BEND 3 TABS
OUTWARD TO FASTEN TO CEILING
• Bend all tabs inward 90º around the top of the shield. |
These tabs must be used to prevent blown insulation |
from getting between the shield and vent pipe, and to |
maintain air space clearance. |
Vaulted Ceiling Installation
• Remove one shield from box.
NOTICE: Cut previously installed batt insulation to make room for the attic insulation shield.
•Cut the attic insulation shield (if application is for vaulted ceiling) to fit your ceiling pitch. Snip cut edge to recreate 1 in. bend tabs all the way around the bottom.
•Wrap shield around pipe if pipe is already installed in area to be insulated.
•Match the three holes in each side and fasten with three screws to form a tube.
•Bend three tabs on the bottom of the shield outward to allow attachment to the ceiling firestop.
•Bend the remaining bottom tabs inward 90º to maintain the air space between the pipe and the shield. Set the shield on the ceiling firestop and attach to the firestop.
•Bend all tabs inward 90º around the top of the shield. These tabs must be used to prevent blown insulation from getting between the shield and vent pipe, and to maintain air space clearance.
E. Installing the Optional | |
•Remove the knockout from the fireplace and discard it (see Figure 8.6).
•Center the duct collar around the exposed hole and attach it to the fireplace with 3 screws. Note: Do this BEFORE final positioning of fireplace.
•Determine the location for the air register/fan housing assembly.
Reference the
ATTACHES HERE
Figure 8.6 | |
Heatilator • | 39 |
