Venting Option; Vent Termination Location Requirements (For Installations In Canada) - Viessmann Vitodens 200 WB2 Series Technical Data Manual

Venting Option

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
*1
supply inlet 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.
*1
Including heat recovery units.
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. ....less than 3 ft./0.9 m above any forced
air inlet located within 10 ft./3 m.
18
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 inputs 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.
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.
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.
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.