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DV425TR DIRECT VENT ROOM HEATER
02/01 Page 26 250-5533
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.
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. 6” (15cm): Clearance to outside corner.
G. 9” (23cm): Clearance to inside corner.
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. 72” (1.8m) minimum: Clearance to service regulator vent outlet.
J. *3' (90cm) US; 6' (180cm) Canada minimum: Clearance to nonmechanical air supply inlet to building or the
combustion air inlet to any other appliance.
K. *72” (1.8m) minimum: Clearance to a mechanical air supply air inlet.
L. *†84” (2.1m) minimum: Clearance above paved sidewalk or a paved driveway located on public property.
M. *‡12” (30cm) minimum: Clearance under veranda, porch, deck, or balcony.
N. 6” (152 mm) minimum: Clearance to outside corner.
†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.
NOTE: Refer to page 35 of this manual for Vertical Termination Installations of this appliance.
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
HORIZONTAL TERMINATION REQUIREMENTS