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Rev. C 1-22-04 P/N 472128
15
INDOOR INSTALLATION (USA ONLY)
OUTDOOR SHELTER INSTALLATION
(CANADA)
All products of combustion and vent gases must be
completely removed to the outside atmosphere
through a vent pipe which is connected to the draft
hood. A vent pipe extension of the same size must
be connected to the draft hood and extended at least
2 feet higher than highest point of the roof within a
10 foot horizontal radius, and at least 3 ft. higher
than the point at which it passes through the roof, or
as permitted by local code; see Figures 15 and 16.
The vent should terminate with an approved vent
cap (weather cap) for protection against rain or
blockage by snow. Double-wall vent pipe and an
approved roof jack shall be employed through the
roof penetration. The use of double-walled type B
vent pipe is recommended.
The draft hood must be installed so as to be in the
same atmospheric pressure zone as the
combustion air inlet to the pool heater. The
certified (factory) draft hood must not be
modified in any way and must be employed in
every indoor installation.
The heater must be located as close as practical to
a chimney or gas vent. The heater should be
installed at least 5 feet away from the pool or spa.
The heater must be placed in a suitable room on a
non-combustible floor or on a non-combustible
base and in an area where leakage from heat
exchanger or water connections will not result in
damage to the area adjacent to the heater or the
structure. When such locations cannot be
avoided, it is recommended that a suitable drain
pan with adequate drainage, be installed under the
heater. The pan must not restrict air flow.
Installations in basements, garages, or
underground structures where flammable liquids
may be stored must have the heater elevated 18
inches from the floor using a non-combustible
base. The following minimum clearances from
combustible materials must be provided.
Side Front Back Top
Water Connection 18 in. 24 in.
Remaining 6 in. 6 in.
Ceiling Clearance 36 in.*
*To ceiling or roof.
Installation (contd.)
Figure 16.
Height above
any roof surface
within 10 ft.
horizontally
Vent Cap
Ridge
Chimney
3 ft. min.
2 ft. min.
10 ft.
Roof
Jack
More Than10 ft.
Figure 15.
* Rise
Air Supply
Gas Combustion
Air Supply
Ventilation
Vent Cap and
Riser Furnished
by Installer
* 1” Rise Per Foot
Recommended