American Water Heater VG6250T100 instruction manual Termination Clearances Sidewall Power Vent

Termination Clearances Sidewall Power Vent

POWER VENT

(using room air for combustion)

EXTERIOR CLEARANCES FOR SIDEWALL VENT TERMINATION

G

V

D

A

H

vE

L

B

v

B

C

B

V

FIXED

E

V

FIXED

V

OPERABL

CLOSED

M

X

CLOSED

V

OPERABL

E

X

V

B

V

F

B

J

K

A

B

V

VENT TERMINAL

X AIR SUPPLY INLET

AREA WHERE TERMINAL IS NOT PERMITTED

Figure 13

Vent terminal clearances for “Power Vent” installations. Power Vent configurations use room air for combustion.

		US Installations 1			US Installations 1
	Clearance above grade,			Clearance to each side	3 feet (91 cm) within a
				of center line extended	height 15 feet (4.5 m)
A veranda, porch, deck or		12 inches (30 cm)	H
				above meter/regulator	above the meter/regulator
	balcony			assembly	assembly*
	Clearance to window	4 feet (1.2 m) below		Clearance to service
B		or to side of opening;	I
	or door that may be			regulator vent outlet	3 feet (91 cm)*
		1 foot (30 cm) above
	opened	opening

				Clearance to a non	4 feet (1.2 m) below or to
	Clearance to			mechanical air supply
C			J		side of opening; 1 foot
	permanently closed	12 inches (30 cm)*		inlet into building or
					(30 cm) above opening.
	window			combustion air inlet to
				any other appliance
	Vertical clearance to
	ventilated soffit located				3 feet (91 cm) above if
	above the terminal			Clearance to a
					within
D within a horizontal		12 inches (30 cm)*	K	mechanical air supply
					10 feet (3 m) horizontally
	distance of 2 feet (61			inlet
	cm) from the center line
	of the terminal
	Clearance to			Clearance above paved
E		12 inches (30 cm)*	L	sidewalk or paved	7 feet (2.13 m)
	unventilated soffit			driveway located on
				public property
F cornerClearance to outside				Clearance under
		2 feet (60 cm)*	M veranda, porch, deck, or		12 inches (30 cm) ‡
				balcony
G cornerClearance to inside		18 inches (45 cm)*

1 In accordance with the current ANSI Z223.1/NFPA 54, National Fuel Gas Code.

†A vent shall not terminate directly above a sidewalk or paved driveway that is located between two single family dwellings and serves both dwellings.

‡ Permitted only if veranda, porch, deck, or balcony is fully open on a minimum of two sides beneath the floor.

* Clearance in accordance with local installation codes and the requirements of the gas supplier and the manufacturer’s installation instructions.

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