Direct Venting (Two-pipe System)
42
General Installation Info
(continued)
Vent termination location requirements (for installations in Canada)
The vent must be installed observing
local regulations in addition to National
Codes, CAN/CSA-B149.1 or 2.
A vent must
NOT
terminate...
1.
....directly above a paved sidewalk
or paved driveway which is located
between two single-family dwellings
and serves both dwellings.
2.
....less than 7 ft./2.13 m above a
paved sidewalk or a paved driveway
located on public property.
3.
....within 6 ft./1.83 m of a
mechanical air supply inlet
*1
to any
building (dryer vents, non-sealed
combustion furnace and hot water
heater vents are considered to be
mechanical air inlets).
4.
....above a meter/regulator assembly
within 3 ft./0.9 m horizontally of the
vertical centerline of the regulator
vent outlet and to a maximum
vertical distance of 15 ft./4.5 m.
5.
....within 3 ft./0.9 m of any gas
service regulator vent outlet.
6.
....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.
7.
....within the following distances of
a window or door which can be
opened in any building, any
non-mechanical air supply inlet to
any building or the combustion air
inlet of any other appliance:
H
1 ft./0.3 m for inputs up to and
including 100 000 Btu/h/30 kW
(applicable only to boiler models
WB2-24C/24).
H
3 ft./0.9 m for input exceeding
100 000 Btu/h/30 kW (applicable to
boiler models WB2-32 and up).
8.
....underneath a veranda, porch or
deck, unless
H
the veranda, porch, or deck is fully
open on a minimum of two sides
beneath the floor, and
H
the distance between the top of
the vent termination and the
underside of the veranda, porch, or
deck is greater than 1 ft./0.3 m.
9.
....in areas where condensation may
cause problems, such as above
planters, patios, or adjacent to
windows where flue gases may
cause fogging.
10.
....within 3 ft./0.9 m to the
property line (advisable, not
mandatory; please check with local
building authorities and municipal
bylaws).
11.
....at a location where ice
formation on the ground can present
a hazard.
12.
....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.
13.
....where discharging hot flue
gases may cause property damage
or personal injury.
14.
....within 3 ft./0.9 m from an
inside corner of outside walls.
*1
Including heat recovery units.
5
2
8
5
2
6
8
v
3
.8
Summary of Contents for Vitodens 100-W WB1A-24
Page 78: ...78 5285 268 v3 8 ...
Page 79: ...79 5285 268 v3 8 ...
