Direct Vent - Horizontal - Sidewall; Determine Termination Location - IDEAL Exalt Solo 110 Manual

CHAPTER 2 - DIRECT VENT INSTALLATION OF VENT/AIR PIPING
2.2.

Direct Vent - Horizontal - Sidewall

NOTICE
• The installation must conform to the
requirements of the authority having
jurisdiction or, in the absence of such
requirements, to the National Fuel Gas
Code, ANSI Z223.1/ NFPA 54, and/or Natural
Gas and Propane Installation Code, CAN/
CSA B149.1.
• For sidewall vented installations in the
Commonwealth of Massachusetts, the
installer must comply with the additional
requirements outlined in Chapter 5 on page
WARNING
A gas vent extending through a sidewall must
not terminate near an adjacent wall or below
any building extensions such as roof eaves,
balconies or decks.
Failure to comply with the required clearances
in this manual can result in substantial property
damage, serious injury, or death.
NOTICE
The information and diagrams outlining
the fittings and method of terminating the
vent/combustion air are directly related to
PVC/CPVC vent systems. When utilizing an
AL29-4C® Stainless Steel or Polypropylene
vent system, there may be some variations.
Consult the appropriate vent manufacturer for
recommendations and clarifications.

2.2.1 Determine Termination Location

Locate the vent and combustion air termination using
the following guidelines:
1. The total length of the vent or combustion air piping
must not exceed the limits given in Table 1 on page 4.
NOTICE
Do not include the 90º elbows used to terminate
the combustion air inlet and vent exterior of the
building when determining the total length of pipe.
33.
2. The combustion air piping must terminate using a 90º
elbow directed away from the vent termination. The
termination must be located 12" [30.5 cm] minimum
above grade / highest anticipated snow level as
shown in Fig. 6 through Fig. 8 on page 17.
NOTICE
The combustion air termination can be placed
on either side of the vent termination. The vent
and combustion air terminations must be a
minimum 12" [30.5 cm] apart horizontally
and vertically. The vent and combustion air
terminations are not required to be in the same
pressure zone. The combustion air termination
must be directed away from the vent for Fig. 8
on page 17. The combustion air termination
must be directed down for Fig. 6 and Fig. 7 on
page 17.
3. The vent piping can terminate:
• Using a 90º elbow as shown in Fig. 6 or Fig. 8 on
page 17.
• Using a coupling as shown in Fig. 7 on page 17.
• The vent termination must be located 12"
[30.5 cm] minimum above the combustion air
termination.
4. The combustion air and vent pipe center lines must
be a minimum of 12" [30.5 cm] apart as shown in
Fig. 6 through Fig. 8 on page 17.
5. The following should be considered when
determining the location of the vent and combustion
air terminations:
a. Locate the vent termination where flue vapors
will not damage surrounding shrubs, plants, air
conditioning equipment or be objectionable to
the homeowner.
b. The flue products will form a noticeable plume
of water vapor as they condense in colder air.
Avoid terminating the vent in areas where the
plume could obstruct window views.
c. Prevailing winds could cause freezing of flue
gas condensation and a buildup of water / ice
on surrounding plants, building surfaces or
combustion air inlet.
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