Direct Venting (Two-pipe System)
43
General Installation Info
(continued)
Vent termination location requirements (for installations in the U.S.A.)
The vent must be installed observing
local regulations in addition to National
Codes, ANSI-Z223.1 or NFPA 54.
A vent must
NOT
terminate...
1.
....less than 7 ft./2.13 m above a
paved sidewalk or a paved driveway
located on public property.
2.
....within 4 ft./1.2 m horizontally
from service regulator vents, electric
and gas meters as well as relief
equipment.
3.
....at least 3 ft./0.9 m above any
forced air inlet located within 10 ft./
3 m.
4.
....less than 1 ft./0.3 m above grade
level or anticipated snow level
(consult local building authorities or
local weather office). Locate the
vent termination in such a way that
it cannot be blocked by snow.
5.
....within 1 ft./0.3 m of a window or
door which can be opened in any
building, any non-mechanical air
supply inlet to any building or the
combustion inlet of any other
appliance.
6.
....in areas where condensation may
cause problems, such as above
planters, patios, or adjacent to
windows where flue gases may
cause fogging.
7.
....within 3 ft./0.9 m to the property
line (advisable, not mandatory;
please check with local building
authorities and municipal bylaws).
8.
....at a location where ice formation
on the ground can present a hazard.
9.
....so that the flue gases are directed
toward brickwork, siding, or other
construction, in such a manner that
may cause damage from heat or
condensate from the flue gases.
10.
....where discharging hot flue
gases may cause property damage
or personal injury.
11.
....within 3 ft./0.9 m from an
inside corner of outside walls.
Flashing and storm collar installation
Flashings and storm collars are field
supplied.
Flashings and storm collars
suitable for Type B vent materials (or
better) may be used.
To obtain flashings and storm collars,
please contact your local vent material
supplier. Follow the installation
instructions supplied by the special
venting manufacturer.
Follow local codes to properly isolate
the exhaust vent pipe when passing
through floors, ceiling and roof.
Always check the marking on the pipe
to make sure you are using the correct
material.
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Summary of Contents for Vitodens 100-W WB1A-24
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