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2.3.5 Indoor and Outdoor Shelter
Installations
An outdoor shelter (Canada only) is an unoccu-
pied enclosure which does not communicate directly
with occupied areas. All indoor installations and
outdoor shelter installations require the addition of a
factory approved draft hood. The draft hood must be
installed without modification and in accordance with
the instructions provided by the manufacturer.
Une remise extérieure (au Canada seulement)
est un endroit inoccupé qui ne communique pas
directement avec les endroits occupés. Toutes les
installations intérieures et remises extérieures exigent
l’addition d’une coupe-tirage intérieur approuvée par
le manufacturier. La coupe-tirage intérieur doit être
installée sans aucune modification et selon les
exigences fournies par le manufacturier.
The applicable installation codes, standards and
Jandy Pool Products, Inc. require that the heater be
properly vented as outlined in this manual. Proper
ventilation of exhaust and combustion air are essential
for the safe and efficient operation of the heater (See
Section 3).
SECTION 3.
Venting
3.1 Combustion Air Supply
The heater location must provide sufficient air
Notes:
1. An Underwriters' Laboratories listed vent cap is required to prevent downdraft and allow the heater to function properly
and safely.
2. Use approved roof jack.
Figure 5. Indoor Installation Venting (USA), or Outdoor Shelter (Canada)
Table 3. Air Openings to Outside
Required Net Free Open Area*
for Combustion Air Openings
Direct from outside Duct from outside
Model in
2
(cm
2
)in
2
(cm
2
)
125 32 (206) 64 (413)
175 44 (284) 88 (568)
250 63 (406) 126 (813)
325 82 (429) 164 (1058)
400 100 (645) 200 (1290)
*Area indicated is for one of two openings; one at floor level
and one at the ceiling, so the total net free area would be double
the figures indicated. For special conditions, refer to NFPA54
ANSI Z223.1. In Canada refer to the National Standard CAN/
CSA-B149.1 which differs from this table.
Note: If using screens and/or metal louvers, compensate by adding
50% additional area to each opening.
If using wood louvers each opening must be at least four times
the area indicated in the table above.
supply for proper combustion and ventilation of the
surrounding area as outlined in the latest edition of
ANSI standard Z223.1 or in Canada, CAN/CSA-
B149.1, and any local codes that may be applicable.
In general, these requirements specify that the
room in which a heater is installed should be provided
with two permanent air supply openings; one within 12
in. (305mm) of the ceiling, the other within 12 in.
(305mm) of the floor. All indoor installations must have
openings to outside air for combustion, ventilation, and
dilution of flue gases from inside the building (see
Figure 5 and Table 3). Jandy Pool Products, Inc. does
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