15
Fig # 10
VENT TERMINAL MINIMUM
CLEARANCES
VENT TERMINAL INSTALLATION
NOTE: THE VENT TERMINAL MUST BE POSITIONED SO THAT
THE FLUE OUTLET IS POINTING UP.
1) Install the vent terminal backing plate on the outside wall (see Fig.
#11). When placing the backing plate, make sure the 7" collar
inserts into the corresponding vent pipe. Attach backing plate to
the outside wall with screws at each corner. Fasten the vent pipe
in place with sheet metal screws through the holes provided in the
collar.
2) Attach vent terminal box to the backing plate with screws provided.
Make sure the 5" collar inserts into the corresponding vent pipe.
3) Caulk in place to prevent any moisture entering the structure.
MINIMUM CLEARANCES TO THE VENT TERMINAL MUST BE
MAINTAINED. (SEE FIG. # 10)
NOTE: LOCAL CODES OR REGULATIONS MAY REQUIRE DIF-
FERENT CLEARANCES.
Fig. # 11
A= clearances above grade, veranda, porch, deck, or balcony
[* 12 inches (30 cm) minimum]
B= clearance to window or door that may be opened [* 12
inches (30 cm) minimum]
C= clearance to permanently closed window [minimum 12
inches (30 cm) recommended to prevent condensation on
window]
D= vertical clearance to ventilated soffit located above the
terminal within a horizontal distance of 2 feet (60 cm) from
the center-line of the terminal [18 inches (46 cm) minimum]
E= clearance to unventilated soffit [18 inches (46 cm)
minimum]
F= clearance to outside corner [8 inches (20 cm) minimum]
G= clearance to inside corner [12 inches (30 cm) minimum]
H= * not to be installed above a meter/regulator assembly within
3 feet (90 cm) horizontally from the center-line of the
regulator
I=
clearance to service regulator vent outlet [* 6 feet (1.8 m)
minimum]
J= clearance to nonmechanical air supply inlet to building or the
combustion air inlet to any other appliance [* 12 inches (30
cm) minimum]
K= clearance to a mechanical air supply inlet [* 6 feet (1.8 m)
minimum]
L= ^ clearance above paved side-walk or a paved driveway
located on public property [* 7 feet (2.1 m) minimum]
M= clearance under veranda, porch, deck, or balcony [18 inches
(46 cm) minimum**]
^ a vent shall not terminate directly above a side-walk or paved driveway which is located between two single family dwellings and serves
both dwellings*
** only permitted if veranda, porch, deck, or balcony is fully open on a minimum of 2 sides beneath the floor*
* as specified in CGA B149 Installation Codes, Note: local Codes or Regulation may require different clearances
* for U.S.A. Installations follow the current National Fuel Gas Code, ANSI Z223.1
AIR SUPPLY INLET
VENT TERMINAL
GAS METER
AREA WHERE TERMINAL
IS NOT PERMITTED
FIXED
CLOSED
FIXED
CLOSED
OPEN-
ABLE
OPEN-
ABLE
INSIDE
CORNER
DETAIL
f i r e - p a r t s . c o m