Vermont Casting RDVOD 3390 manual Termination Clearances, Venting Requirements - Natural Vent Only

Radiance Direct Vent /Natural Vent Gas Heater

Termination Clearances

Termination clearances for buildings with combustible and noncombustible exteriors.

Inside Corner		Outside Corner
	A =			B =
A				Combustible
	Combustible			6"(152mm)
	6"(152mm)		V	Noncombustible
	Noncombustible			2"(50mm)
V	2"(50mm)		B
Balcony -		Balcony -
with no side wall		with perpendicular side wall

G	H
V		V
G =	Combustible &	J
	Noncombustible
Combustible &
	H = 24"(610mm)
Noncombustible
12"(305mm)	J = 20"(508mm)

Recessed Location

D

CC

E

V

C = Maximum depth of 48" (1219mm) for recessed location.

D = Minimum width for back wall of a recessed location. Combustible 38"(965mm) Noncombustible 24"(610mm)

E = Clearance from corner in recessed location. Combustible 6"(152mm) Noncombustible 2"(50mm)

584-15

Fig. 10 Termination clearances.

Venting Requirements - Natural Vent Only

Vertical Run (in feet) (Measured from top of the unit before any elbow)

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Venting Runs

NOTE: When venting staight vertical, without any elbow, a minimum of 8 ft. vertical is required off the top of the stove.

= Acceptable venting configuration = Unacceptable venting configuration

A:Vertical installations up to 36 feet (12m) in height. Up to an 18 ft. horizontal vent run can be installed within the vent system using a maximum of two 90-degree elbows or four 45-degree elbows.

B:Vertical installations up to 36 feet (12m) in height. Up to a 24 ft. horizontal vent run can be installed within the vent system using a maximum of two 45-degree elbows.

(Ratio = 2/3, Hor./Vert.)

Horizontal Run (in feet)
Fig. 11 Vent termination window - Natural Vent ONLY.	NOTE: When using the FSDHAG, the restrictor
	plate supplied with the stove is not used.

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