Rheem AP13731 warranty Horizontal Vent Terminal Location, US Installations

Installing the water heater.

D

E

V B

V

L

G

v

A

	C
v	FIXED
	ED
	OS
	CL
	LE
	ERAB
	OP
v
F
	B

H

			B	v
B			D
			FIXE
			SED
		RABLE	CLO
		OPE
	v
B		v		X
	B	A	J

I

v	X
	K
M

V VENT TERMINAL X AIR SUPPLY INLET AREA WHERE TERMINAL IS NOT PERMITTED

Horizontal Vent Terminal Location

The following information should be used for determining the proper location of the vent terminal for indoor and outdoor tankless water heaters.

				Canadian Installations 1	US Installations 2
	A=	Clearance above grade, veranda,		12 inches (30 cm) above anticipated	12 inches (30 cm) above anticipated
		porch, deck or balcony.		snow level.	snow level.
	B=	Clearance to window or door that		6 inches (15 cm) for appliances < 10,000	4 feet (1.2 m) below or to side of
		may be opened.		Btuh (3 kW), 12 inches (30 cm) for	opening; 1 foot (300 mm) above opening.
				appliances > 10,000 Btuh (30 cm) for
				appliances > 10,000 Btuh (30kW), 36
				inches (91 cm) for appliances > 100,000
				Btuh (30kW).
	C= Clearance to permanently closed			*	*
	window.
	D=	Vertical Clearance to ventilated soffit		4 feet (1.2 m)	4 feet (1.2 m)
		located above the terminal within a
		horizontal distance of 2 feet (61 cm)
		from the center line of the terminal.
	E=	Clearance to unventilated soffit.		*	*
	F=	Clearance to outside corner.		*	*
	G=	Clearance to inside corner.		*	*
	M = Clearance under veranda, porch,			3 feet (91 cm)	3 feet (91 cm)
			deck or balcony.
1 In accordance with current CAN/CGA-B149 Installation Codes.
2 In accordance with current ANSI Z223.1/ NFPA 54 National Fuel Gas Code.
				Canadian Installations 1	US Installations 2
	H = Clearance to each side of center line			3 feet (91 cm) within a height 15 feet	*
			extended meter/regulator assembly.	(4.57 m) above the meter/regulator
			above
				assembly.
	I =		Clearance to service regulator vent	3 feet (91 cm)	*
			outlet.
	J =		Clearance to nonmechanical air	6 inches (15 cm) for appliances < 10,000	4 feet (1.2 m) below or to side of
			supply inlet to the combustion air	Btuh (3 kW), 12 inches (30 cm) for	opening; 1 foot (300 mm) above opening.
			inlet to any building or other	appliances > 10,000 Btuh (30 cm) for
			appliance.	appliances > 10,000 Btuh (30kW), 36
				inches (91 cm) for appliances > 100,000
				Btuh (30kW).
	K =		Clearance to mechanical air supply	6 feet (1.83 m)	3 feet (91 cm) above if within 10 feet (3
					m) horizontally.
			inlet.
	L =		Clearance above paved side walk or	7 feet (2.13 m)	7 feet (2.13 m)
			paved driveway located on public
			property.
	M = Clearance under veranda, porch,			Not Allowed	Not Allowed
			deck or balcony.

+	A vent shall not terminate directly above a sidewalk or paved driveway that is located between two single family dwellings and
	serves both dwellings.	15
*	If clearances are not specified then follow local installation codes and the requirement of the gas supplier.