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In accordance with the current CSA B149, Natural Gas and Propane Installation Code.
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In accordance with the current ANSI Z223.1 NFPA 54, National Fuel Gas Code.
* These numbers are only estimates. Clearance in accordance with installation codes and the requirements of the gas supplier.
t
A vent shall not terminate directly above a side walk or paved driveway that is located between two single family dwellings and it serves both dwellings.
+
Permitted only if verandah, porch, deck, or balcony is fully open on a minimum of two sides beneath the oor.
NOTE: Venting terminals shall not be recessed into walls or siding.
Initial Installation
QUALIFIED INSTALLERS ONLY
Letter Canadian Installation
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US Installation
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Description
A 12 in (30 cm) Clearance above grade, verandah, porch, deck, or balcony.
B 12 in (30 cm) 9 in (23 cm) Clearance from window or door that may be opened.
C 12 in (30 cm)* Clearance from permanently closed window (to prevent
condensation).
D 24 in (60 cm)* Vertical clearance to ventilated soft located above the
terminal, within a horizontal distance of 2 ft (60 cm) from
center line of terminal.
E 18 in (45 cm)* Clearance to unventilated soft.
F 12 in (30 cm)* Clearance to outside corner.
G 12 in (30 cm)* Clearance to inside corner.
H 3 ft (91 cm) within a height of
15 ft (4.5 m) above the meter/
regulator assembly
3 ft (91 cm) within a height of
15 ft (4.5 m) above the meter/
regulator assembly*
Clearance to each side of center line extended above
meter/regulator assembly.
I 3 ft (91 cm) 3 ft (91 cm)* Radial clearance around service regulator vent outlet.
J 12 in (30 cm) 9 in (23 cm) Clearance to non-mechanical air supply inlet to building, or
the combustion air inlet to any other appliance.
K 6 ft (1.83 m) 3 ft (91 cm) above if within 10
ft (3 m) horizontally
Clearance to mechanical air supply inlet.
L 7 ft (2.13 m
)t
7 ft (2.13 m)
*t
Clearance above paved sidewalk or paved driveway located
on public property.
M 12 in / 30 cm
+
12 in / 30 cm*
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Clearance under verandah, porch, deck, or balcony.
N 12 in (30 cm)* Clearance horizontally to any surface (such as an exterior
wall) for vertical terminations.
O 12 in (30 cm) Clearance above roof line for vertical terminations.
Table 2: Vent termination clearances, refer to Figure 19.
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KIT COMPONENTS:
Qnty Description Qnty Description
1 Horizontal direct vent termination cap 4 Wire spacers
1 Flue collar adapter 1 4 oz tube Mill-Pac Sealant
1 Wall thimble 1 4 oz tube RTV silicone
1 5’ (190 cm) length of Ø4” (10 cm) double walled ex pipe 12
9
/16” tech screws
1 5’ (190 cm) length of Ø6” (16.8 cm) double walled ex pipe 8 1” wood screws
Please ensure that all components are supplied with this kit. If components are missing or have
been damaged, contact your dealer, distributor, or courier company. Do not attempt the installation if
components are missing or damaged.
Please read and understand these instructions before installing. Failure to follow
these instructions carefully could cause property damage or personal injury.
FIREPLACE HORIZONTAL VENT KIT 50-1235: