Blaze King CALDERA, Users Installation Operation & Maintenance Manual

Page: 44 / 53

THE CALDERA
Page 44
ALLOWABLE TERMINATION LOCATIONS
Canadian Installations
1
US Installations
2
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A= Clearance above grade, veranda
*min. 12”(30 mm) *min. 12”(30 mm)
porch, deck or balcony
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B= Clearance to window or door
*min. 12”(30 mm) *min. 12”(30 mm)
that may be opened
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C= Clearance to permanently closed
*min. 12”(30 mm) *min. 12”(30 mm)
window
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D= Vertical clearance to ventilated
*min. 20-1/2” (521 mm) *min. 20-1/2” (521 mm)
soffit located above the terminal within from center of termination from center of termination
a horizontal distance of 2’ (61 cm) from
the centerline of the terminal
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E= Clearance to unventilated soffit *min. 20-1/2” (521 mm) *min. 20-1/2” (521 mm)
from center of termination from center of termination
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F=Clearance to outside corner
*min. 10”(250 cm) *min. 10” (250 cm)
from center of termination from center of termination
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G=Clearance to inside corner
*min. 12-1/2" (318 mm) *min. 12-1/2" (318 mm)
from center of termination from center of termination
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H= Clearance to each side of centerline
3’ (91cm) within a height 15’ (4.5m) *
extended above meter/regulator assembly above the meter/regulator assembly
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I= Clearance to service regulator vent outlet
3’ (91cm) *
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J= Clearance to no mechanical air supply inlet
12” (30cm) 9” (23cm)
to building or the combustion air inlet to any
other appliance
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K= Clearance to a mechanical air supply inlet
6’ (1.83 m) 3’ (91 cm) above if within 10’ (3 m)
horizontally
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L= Clearance above paved sidewalk or paved
7’ (2.13 m)† *
driveway located on public property
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M = Clearance under veranda, porch, deck or
12” (30 cm)‡ *
balcony
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1
In accordance with the current CSA B149.1, Natural Gas and Propane Installation Code
2
In accordance with the current ANSI Z223.1/NFPA 54, National Fuel Gas Code
† A vent shall not terminate directly above a sidewalk or paved driveway that is located between two single family dwellings and
serves both dwellings.
‡ Permitted only if veranda, porch, deck or balcony is fully open on a minimum of two sides beneath the floor.
* For clearances not specified in
ANSI Z223.1/NFPA 54 or CSA B149.1 , one of the following shall be indicated:
a) A minimum clearance value determined by testing in accordance with section 2.23.7, or ;
b) A reference to the following footnote: “Clearance in accordance with local installation codes and the requirements of the gas
supplier”
Figure 19