17
VENT CAPS STACKED VERTICALLY
FLUE GASES MOVING IN PARALLEL
VENT CAPS ALL AT SAME ELEVATION
FLUE GASES MOVING TOWARD EACH OTHER
VENT CAPS AT STAGGERED ELEVATIONS
FLUE GASES MOVING TOWARD EACH OTHER
1" (25 mm)
MIN. (TYP)
2" (50 mm) MIN. (TYP)
DISCHARGE
4' (1.2 m)
MIN. (TYP)
DISCHARGE
4' (1.2 m)
MIN. (TYP)
1" (25 mm)
MIN. (TYP)
F10704
Figure 10.
Combustion air supplied from outdoors must be free of
particulate and chemical contaminants. To avoid a blocked
leaves, debris, etc.
A
WARNING:
termination material are allowed. Such substitutions
would jeopardize the safety and health of inhabitants.
A
CAUTION: Condensate is acidic and highly
corrosive.
by the heater manufacturer in accordance with its listing.
with appropriate listings may be used. Pipe joints must
be positively sealed. Follow the vent manufacturer’s
installation instructions carefully.
Direct Vent – Vertical
Installation
draw combustion air from outdoors and force the heated
The vent material must be in accordance with the above
instructions for vent materials. Vent material must be listed
be as direct as possible and should be the same size or
larger than the vent outlet.
It is recommended that the intake vent be insulated in
colder climates.
CAT IV
FLUE TERMINATION
(91.4 cm)
1' MIN
(30.5 cm)
1' MIN
(30.5 cm)
HEATER
UNIT
ALTERNATIVE
COMBUSTION
6" MIN
(15.2 cm)
CONDENSATION
TRAP
12" MIN
(30.5 cm)
AIR
INTAKE
Figure 11. Direct Vent - Vertical
Termination
A
WARNING: No substitutions of vent pipe or vent
termination material are allowed. Such substitutions
would jeopardize the safety and health of inhabitants.
The distance of the vent terminal from adjacent public
walkways, adjacent buildings, open windows and building
braced to withstand snow and wind loads.
the roof line or above normal snow levels that might obstruct
operation of the heater and venting system and reduces
the air inlet opening.
APPROVED
UNCONTROLLED DOCUMENT IF PRINTED
To Next Page
Loading...
