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Grand Bay 40 Direct Vent Freestanding
Page 17
January 2000
H
VENTING:
CLEARANCES
VENTING
NOTE:
This stove is a direct vent heater. All combustion air must come directly from the
outside of the building. Vent pipe for this unit consists of an inner and an outer layer. The
inner layer carries the stove exhaust out of the system, and the outer layer brings fresh
combustion air into the stove.
A
Clearance to non-mechanical air supply inlet to building, or the combustion air inlet to
any other stove - 12 (305mm) minimum
B
Clearance above paved sidewalk or a paved driveway located on public property - 84
(2.1m) minimum
D
Not to be installed above a meter/regulator assembly within 36 (914mm) horizontally
from the centerline of the regulator
E
Clearance to service regulator vent outlet - 72 (1.8m) minimum
F
Clearance above grades, veranda, porch, deck or balcony - 12 (305mm) minimum
G
Clearance to window or door that may be opened - 12 (305mm) minimum on top and
sides and 24 below
H
Clearance to permanently closed window - 12 (305mm) recommended to prevent
condensation on window
I
Clearance under veranda, porch, deck or balcony - 18 (457mm) minimum if fully
open on a minimum two sides beneath the floor
J
Vertical clearance to ventilated soffit located above the terminal within a horizontal
distance of 24 (610mm) from the centerline of the terminal - 18 (457mm) minimum
K
Clearance to unventilated soffit - 12 (305mm) minimum
L
Clearance to inside corner - 9 (229mm) minimum
M
Clearance to a mechanical air supply inlet - 72 (1.8m) minimum
N
Clearance to outside corner - 6 (152mm) minimum
A vent shall not terminate directly above a sidewalk or paved driveway which is located
between two single family dwelling and serves both dwellings (not pictured).
A vent shall not terminate within 36" (914mm) of the property line (not pictured).
For USA installations follow current National Fuel Gas Code ANSI Z223.1.