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Intrepid® Direct Vent - Rear Vent Gas Heater
Step 8. Follow Steps 7 through 10 of the Vertical Installa-
tion instructions
ST993
Step 9. Install the black trim collar around the outside of
flaps
the Cathedral ceiling support box. The two pieces of the
8/07
trim collar slide over one another to allow for easy adjust-
ment around the support box. Using the six (6) screws
provided, secure the four corners and the overlapping
sections of the trim collar to the underside of ceiling. You
may want to predrill the holes for the overlapped sections
for ease of installation. (Fig. 42)
Figure 42
Cathedral Ceil-
ing Support Box
ST994
General Maintenance
Conduct an inspection of the venting system annually.
ST994
Recommended areas to inspect are as follows:
trim collar
1. Check areas of the venting system which are exposed
8/07
to the elements for corrosion. These will appear as rust
spots or streaks, and in extreme cases, holes. These
components should be immediately replaced.
2. Remove the vertical terminations cap and shine a
flashlight down the vent. Remove any bird nests, or
other foreign material.
3. Check for evidence of excessive condensation, such
as water droplets forming in the inner liner, and subse-
quently dripping out at joints. Continuous condensate
can cause corrosion of caps, pipe and fittings. It may
be caused by having excessive lateral runs, too many
elbow and exterior portions of the system being ex-
posed to cold weather.
22
Figure 41
ST993
Ceiling Trim
Overlap
Screws
4. Inspect joints to verify that no pipe sections or fittings
have been disturbed or loosened. Also check mechan-
ical supports such as wall straps or plumbers tape for
rigidity.
Supplemental Canadian Instructions
When installing DirectVent Pro on appliances in Canada,
a 2-piece decorative wall thimble is required in order to
comply with IR #41. (Fig. 18 and 20) Install galvanized
exterior wall thimble plate on exterior of building and black
decorative wall thimble plate on the interior side of wall.
Install wall thimble centered through a square framed
opening in wall. Be sure to maintain all minimum clear-
ances. When installing DirectVent Pro vertically through
floors, a ceiling firestop is required at every floor/ceiling
level.
Vertical Through Existing Chimney
The heater must be vented to the outdoors through an ex-
isting masonry or prefabricated fireplace chimney system
through the roof.
The heater is approved to be vented to the outdoors through
any solid-fuel fireplace chimney that has been constructed
or installed in accordance with the national, Provincial/State
and local building codes and is constructed of noncombus-
tible materials. For Venting Requirements, refer to page
10. Refer to Venting Components on page 14.
Converting a Class-A Metal Chimney or Ma-
sonry Chimney to a Direct Vent System
Application
These instructions apply to the DuraVent Direct Vent Con-
version kits for factory-built Class-A metal chimneys and
masonry chimneys. These venting systems, in combination
with the gas appliance, have been tested and listed by a
major testing agency such as UL, AGA, Omni or Warnock
Hersey. Check the manufacturer's rating plate and instruc-
tion manual to confirm that a DuraVent Direct Vent Chimney
Conversion system is approved for use on the brand name
appliance you have selected.
IMPORTANT
Read all instructions carefully before starting the instal-
lation. Failure to follow these instructions may create a
fire or other safety hazard, and will void the warranty.
Be sure to check the appliance manufacturer's instal-
lation instructions for specific venting and clearance
to combustible requirements, which may vary from
one appliance to another.
20306761
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