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DV400S DIRECT VENT ROOM HEATER
March 4, 2002 Page 11 30211C
R
A
B
C
F
G
A
V
K
J
N
V
= vent terminal
A
= air supply inlet
Openable
Fixed
Closed
V
V
V
E
D
B
L
V
H
M
= area where terminal is not permitted
I
A
Fig. 3 - HORIZONTAL TERMINATION REQUIREMENTS
A. *12” (30cm) minimum: Clearance above grade, veranda, porch, deck, or balcony.
B. *12” (30cm) minimum: Clearance to window or door that may be opened.
C. 12” (30cm) minimum: Clearance to permanently closed window (recommended to prevent condensation on window)
or window that may be opened.
D. 18” (46cm) minimum: Vertical clearance to ventilated soffit located above the terminal within a horizontal distance
of 2’ (60cm) from the centerline of the terminal.
E. 12” (30cm) minimum: Clearance to unventilated soffit.
F. Clearance to outside corner. Clearance in accordance with local installation codes and the requirements of the
gas supplier.
G. Clearance to inside corner. Clearance in accordance with local installation codes and the requirements of the
gas supplier.
H. *Not to be installed above a meter/regulator (gas or electrical) assembly within 3’ (90cm) horizontally from the
centerline of the meter/regulator.
I. 3’ (91cm) USA/6' (183cm)Canada minimum: Clearance to service regulator vent outlet.
J. 12" (30cm) minimum: Clearance to nonmechanical air supply inlet to building or the combustion air inlet to any
other appliance.
K. 3’ (91cm) USA/6' (183cm)Canada minimum: Clearance to a mechanical air supply air inlet.
L. *+7’ (2.1m) minimum: Clearance above paved sidewalk or a paved driveway located on public property.
M. *#12” (30 cm) minimum: Clearance under veranda, porch, deck, or balcony.
N. Clearance to adjacent building or deck. Clearance in accordance with local installation codes and the requirements
of the gas supplier.
+ 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.*
* As specified in CGA B149 Installation Codes
Note: Local Codes or regulations may require different clearances.