Venting System Assembly, General Information, Options, Planning - Vermont Castings Intrepid INDVRCB Homeowner's Installation And Operating Manual

Venting System Assembly
General Information
The Intrepid is approved for installation only with the
Simpson vent components listed on Page 14. Follow
these and the vent component instructions exactly.
For U.S. installations: The venting system must con-
form with local codes and/or the current National Fuel
Gas Code, ANSI Z223.1/NFPA 54
For Canadian installations: The venting system must
conform to the current CSA B149.1 installation code.
Options
The Simpson Dura-Vent Direct Vent Pro offers a com-
plete line of component parts for both horizontal and
vertical installation. Many items are offered in decora-
tive black as well as galvanized finish. The galvanized
pipe and fittings may be used for concealed locations
such as attics, or spaces where corrosion is a factor,
such as above the roofline. Decorative black painted
sections are recommended for use on visible interior
runs. Decorative brass trim kits are available for both
Wall Thimbles and Ceiling Support Boxes. Snorkel
Terminations are available for applications which may
require vertical rise on the building exterior.
Planning Your Installation
There are two basic types of Direct Vent Pro installa-
tions:
Horizontal Termination (Figs. 18 and 19)
Vertical Terminations (Fig. 20)
When planning your installation, it will be necessary to
select the proper length of vent pipe for your particular
requirement. For horizontal installations, check these
instructions to determine the minimum clearance from
the rear of the appliance to the wall. It is also important
to note the wall thickness. Select the amount of verti-
cal rise desired or required, for "vertical-to-horizontal"
installations (verify that it is within the minimum and
maximum limits. Refer to Page 7). To determine the
length of vent pipe required for vertical installations,
measure the distance from the appliance flue outlet to
the ceiling, the ceiling thickness, the vertical rise in an
attic or second story, and allow for sufficient vent height
above the roofline. For multi-story applications, firestops
are required at each floor/ceiling level. If an offset is
needed in the attic, additional pipe and elbows will be
required.
20012761
Intrepid® Direct Vent - Rear Vent Gas Heater
Figure 18
Zero Clearance Wall Sleeve
Firestop
Round Ceiling Support /
Wall Thimble Cover
Pipe Section
ST973
Figure 19
Pipe Section
90° Elbow
Pipe Section
90° Elbow
ST974
Square Horizontal
Termination
Square Horizontal
Termination Cap
Zero Clearance
Wall Sleeve
Firestop
Round Ceiling
Support / Wall
Thimble Cover
15