Heatilator GCDC60 Installation & Operating Instructions Manual page 19

CALIBER DIRECT VENT INSTALLATION INSTRUCTIONS
c. Rear Vent Lengths
Attach either a rear vent kit straight section or an
elbow (depending upon your specific installation)
to the appliance. See Figure 43. Starter elbows
cannot be used in any rear vented configuration.
A maximum of three elbows are allowed in the
vent system. Use only pipe listed with this
appliance. ALWAYS MAINTAIN MINIMUM AIR
SPACE CLEARANCES OR GREATER AROUND THE
VENT SYSTEM. Do not pack air spaces with
insulation or other material.
f i r e - p a r t s . c o m
Starter elbows cannot be used in any
rear vented configurations.
Figure 43
Rear Vent Length Allowances for
Vertical Termination Only
CAUTION:
Provisions shall be made to provide adequate com-
bustion and ventilation air.
WARNING - RISK OF FIRE!
Always maintain minimum clearances or greater
around the vent system. Do not pack air spaces with
insulation or other material.
08/04
d. Firestop Spacer/Vent Installation
Frame an opening and install a firestop spacer
whenever the vent penetrates a ceiling/floor area,
as shown in Figure 44. Frame the opening with
the same sized lumber as used in the ceiling/
floor joists. Unless the flue is offset, the hole
should be directly above the appliance. DO NOT
pack insulation around the vent.
Figure 44
Installing the Firestop Spacer
30803 Rev X 19