Regency U37-NG NATURAL GAS, U37-LP PROPANE installation manual Air supply outlet

U37 Regency ULTIMATE Rear Vent Direct Vent

Vertical Termination

24"

D

E

V

Inside corner detail

G

V

A

Vertical

Termination

24"

18"

V

Freestanding Gas Heater

B

V

M

.

C

	V	Fixed
		Closed
F	V	Openable

B

V

Openable

B

Fixed Closed

	H
V
B	N

L

B

B

V	K	A
		j
	A

V

A

V

Vent terminal

A Air supply outlet Area where terminal is not permited

7

A= Clearance above grade, veranda, porch, deck, or balcony *(min. 12"/30cm)		H= Not to be installed above a meter/regulator assembly within
B= Clearance to window or door that may be opened *(12"/30cm) #(9"/23cm)			(3'/90cm) horizontally from the centerline of the regulator.
C= Clearance to permanently closed window *(min. 12"/30cm)		J=	Clearance to service regulator vent outlet *(min. 36"/90cm)
D= Vertical clearance to ventilated soffit located above the terminal within a horizontal		K=	Clearance to non-mechanical air supply inlet to building
	distance of (24"/60cm) from the centerline of the terminal (min. 22"/55cm) check with		or the combustion air inlet to any other appliance *(12"/30cm) #(9"/23cm)
	local code.	L=	Clearance to a mechanical air supply inlet *(min. 72"/1.8m)
E=	Clearance to unventilated soffit (min. 12"/30cm)		#3' (91cm) above if within 10' (3m) horizontally.
F=	Clearance to outside corner (12"/30cm)	M= **Clearance above paved sidewalk or a paved driveway located
G= Clearance to inside corner (12"/30cm)			on public property *(min. 84"/2.1m)
		N= Clearance under veranda, porch, deck, or balcony *(min.
			12"/30cm)***
	Note: * As specified in CGA B149 Installation Code. Note: Local codes or	regulations may require different clearances.
	**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 of two sides beneath the floor.
	# In accordance with the current ANSI Z223.1/NFPA 54, National Gas Code