Desa (V)T36EPA Location of Termination Cap, D E B L, Minimum Clearances for Termination Cap

Location of Termination Cap

D

E V

B L

	C
	Fixed	V
	Closed
F	Openable
	V

B

B

B

Openable ClosedFixed

H

VI

B

V J XG

AM

N N

	G
	V
	G
V K X	V

									A
		V TERMINATION CAP	X AIR SUPPLY INLET				G	GAS METER	RESTRICTED AREA
									(TERMINATION PROHIBITED)
A	=	clearance above grade, veranda, porch, deck, or		I	=	clearance to service regulator vent outlet [*72" (182.9 cm)
		balcony [*12" (30.5 cm) minimum]				minimum]
B	=	clearance to window or door that may be opened		J	=	clearance to non-mechanical air supply inlet to building
		[12" (30.5 cm) minimum]				or the combustion air inlet to any other fireplace
C	=	clearance to permanently closed window				[*12" (30.5 cm) minimum]
		[minimum 12" (30.5 cm) recommended to prevent		K	=	clearance to a mechanical air supply inlet [*72" (182.9 cm)
		condensation on window]				minimum]
D	=	vertical clearance to ventilated soffit located above the		L	=	† clearance above paved side-walk or a paved driveway
		terminal within a horizontal distance of 24" (61 cm) from				located on public property [*84" (213.3 cm) minimum]
		the center-line of the terminal [18" (45.7 cm) minimum]		M =		clearance under veranda, porch, deck
E	=	clearance to unventilated soffit [12" (30.5 cm) minimum]				[*12" (30.5 cm) minimum ‡]
F	=	clearance to outside corner (see below)		N =		clearance above a roof shall extend a minimum of
G	=	clearance to inside corner (see below)				24" (61 cm) above the highest point when it passes
H	=	*not to be installed above a meter/regulator assembly				through the roof surface and any other obstruction within
		within 36" (91.4 cm) horizontally from the center line				a horizontal distance of 18" (45.7 cm)
		of the regulator

†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

A

V

Outside Corner	Recessed Location
	D
	C	C
A = 6" (15.2 cm)		E
V	V

B = 6" (15.2 cm)

B

Balcony with No Side Wall

G

V

G = 12" (30.5 cm) minimum clearance

Balcony with Perpendicular Side Wall

H

V

J

Combustible &

Noncombustible

H = 24" (61 cm)

J = 20" (50.8 cm)

C = Maximum depth of 48" (121.9 cm) for recessed location

D = Minimum width for back wall of recessed location - Combustible - 38" (965 mm) Noncombustible - 24" (61 cm)

E = Clearance from corner in recessed location- Combustible - 6" (15.2 cm) Noncombustible - 2" (5.1 cm)

Figure 7 - Minimum Clearances for Termination Cap

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