Location of Termination Cap

D
V	E
V
L	B
L

	C
	Fixed	V
	Closed	V
	Closed
F	Openable
F	V
	B

Openable

Fixed

Closed

V J XG

	G
	V
	G
V K X	V

V TERMINATION CAP

X AIR SUPPLY INLET

GAS METER

A RESTRICTED AREA (TERMINATION PROHIBITED)

A= clearance above grade, veranda, porch, deck, or balcony [*12" (30.5 cm) minimum]

B= clearance to window or door that may be opened [6" (15 cm) min. for 10,000 Btu or less; 9" (23 cm) in US if between 10,000 and 50,000, 12" (30 cm) in Canada if between 10,000 and 100,000; 12" (30 cm) in US if greater than 50,000, 36" (91 cm) in Canada if greater than 100,000]

C= clearance to permanently closed window [minimum 12" (30.5 cm) recommended to prevent condensation on window]

D= vertical clearance to ventilated soffit located above the terminal within a horizontal distance of 24" (61cm) from the center-line of the terminal [18" (45.7 cm) minimum]

E= clearance to unventilated soffit [12" (30.5 cm) minimum]

F= clearance to outside corner (see below)

G= clearance to inside corner (see below)

H= *not to be installed above a meter/regulator assembly within

36" (91.4 cm) horizontally from the center-line of the regulator

I= clearance to service regulator vent outlet [*72" (182.9 cm) minimum]

J= clearance to non-mechanical air supply inlet to building or the combustion air inlet to any other fireplace *[6" (15 cm) min. for

10,000 Btu or less; 9" (23 cm) in US if between 10,000 and 50,000, 12" (30 cm) in Canada if between 10,000 and 100,000; 12" (30 cm) in US if greater than 50,000, 36" (91 cm) in Canada if greater than 100,000]

K= clearance to a mechanical air supply inlet [*In Canada, 6 ft. (1.83 m) minimum; In US 3 ft. (91 cm) above if within 10 ft. (3 m) horizontally]

L= † clearance above paved side-walk or a paved driveway located on public property [*84" (213.3 cm) minimum]

M= clearance under veranda, porch, deck [*12" (30.5 cm) minimum ‡]

N= clearance above a roof shall extend a minimum of 24" (61 cm)

above the highest point when it passes through the roof surface and any other obstruction within a horizontal distance of 18" (45.7 cm)

†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 balconey is fully open on a minimum of 2 sides beneath the floor*

* as specified in CAN/CSA B149 (.1 or .2) Installation Codes (1991) for Canada and U.S.A. Note: Local codes or regulations may require different clearances

Termination Clearances for Buildings with Combustible and Noncombustible Exteriors

Inside Corner

Outside Corner

Recessed Location

A = 6" (15.2 cm)

B B = 6" (15.2 cm)