NOTE: DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE.
7
Minimum Clearances
Canadian Installation *
US Installation **
A
Clearance above grade, veranda, porch, deck or
balcony.
12" (30 cm) *
12" (30 cm) **
B
Clearance to window or door that may be opened.
6" (15.2 cm) for appliances < 10,000 BTU/hr (3kW),
12" (30 cm) for appliances > 10,000 BTU/hr (3kW)
and < 100,000 BTU/hr (30kW),
36" (91 cm) for appliances > 100,000 BTU/hr (30kW)*
6" (15.2 cm) for appliances < 10,000 BTU/hr (3kW),
9" (23 cm) for appliances > 10,000 BTU/hr (3kW) and
< 50,000 BTU/hr (15kW),
12" (30 cm) for appliances > 50,000 BTU/hr (15kW)*
C
Clearance to permanently closed window
12" (305 mm) recommended to prevent window
condensation
9" (229 mm) recommended to prevent window
condensation
D
Vertical clearance to ventilated soffit located above
the terminal within a horizontal distance of 36"
(91.4cm) from the center line of the terminal
24" (61.0 cm)
24" (61.0 cm)
E
Clearance to unventilated soffit
24" (61.0 cm)
24" (61.0 cm)
F
Clearance to outside corner
5" (12.7 cm)
5" (12.7 cm)
G
Clearance to inside corner
36" (91.4 cm)
24" (61.0 cm)
H
Clearance to each inside of center line extended
above meter / regulator assembly
3 ft (91 cm) within a height of 15 ft above the meter /
regulator assembly *
3 ft (91 cm) within a height of 15 ft above the meter /
regulator assembly **
I
Clearance to service regulator vent outlet
3 ft (91 cm) *
3 ft (91 cm) **
J
Clearance to non-mechanical air supply inlet to
building or the combustion air inlet to any other
appliance
6" (15.2 cm) for appliances < 10,000 BTU/hr (3kW),
12" (30 cm) for appliances > 10,000 BTU/hr (3kW)
and < 100,000 BTU/hr (30kW),
36" (91 cm) for appliances > 100,000 BTU/hr (30kW)*
6" (15.2 cm) for appliances < 10,000 BTU/hr (3kW),
9" (23 cm) for appliances > 10,000 BTU/hr (3kW) and
< 50,000 BTU/hr (15kW),
12" (30 cm) for appliances > 50,000 BTU/hr (15kW)*
K
Clearance to mechanical air supply inlet
6 ft (1.83 m) *
3 ft (91 cm) above, if within 10 ft (3 m) horizontally**
L
Clearance above paved sidewalk or paved
driveway located on public property
7 ft (2.13 m) ‡
7 ft (2.13 m) ‡
M
Clearance under veranda, porch, deck or balcony
18" (46.0 cm) * ‡
18" (46.0 cm) ** ‡
* In accordance with the current CAN/CGA-B149.1 National Gas and B149.2 Propane Installation Code - Latest Editions.
** In accordance with the current ANSI Z223.1 / NFPA 54 National Fuel Gas Code - Latest Edition.
‡ A vent shall not terminate directly above a sidewalk 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 2 sides beneath the floor.
NOTE: Local Codes Or Regulations May Require
Different Clearances.
NOTE: Location Of The Vent Termination Must Not
Interfere With Access To The Electrical Service.
V
V
V
V
V
F
C
B
B
A
B
H
M
I
X
V
D
V
A
A
A
V
L
B
J
X
E
V
A
G
*18”
18”
B
C
C
C
K
X
* See Item D in the Text Below.
Center Line
of Termination
Exterior Wall
horizontal
Termination
Ventilated Soffit
Inside Corner
DETAIL D
Inside
Corner Detail
Operable
Window
Fixed
Closed
Window
= 9" in U.S.
=12" in Canada
3 ft.
3 ft.
= Air Supply Inlet
= Vent Terminal
= Area where Terminal is NOT permitted
24"
36"
Figure 4 - Exterior Horizontal Vent Termination Clearance Requirements
INNOVATIVE HEARTH PRODUCTS • POWER VENT DV GAS FIREPLACES (DRT63__TYN / DRC63__TYN) • INSTALLATION INSTRUCTIONS
