John Wood Oil-Fired Direct Vent - Manual (Page 4)

The vent terminal must have sufficient clearance from
ground level so that it will not be buried in snow. The
location of the vent terminal must also meet the regula-
tions of the “Installation Code for Oil Burning Equipment”
CAN/CSA-B 139-M91, section 4.3.2.2
(also see Figure 3)
A vent shall not terminate:
(a) directly above a paved sidewalk or a paved driveway
that is located between two buildings, and that serves
both buildings;
(b) less than 2.13m (7ft.) above any paved sidewalk or
any paved driveway;
(c) within 1.8m (6ft.) of a window, door, or mechanical air
supply inlet to any building, including soffit openings;
(d) above a gas meter/regular assembly within 1 m (3ft.)
horizontally of the vertical centerline of the regulator;
(e) within 1.8 m (6ft.) of any gas service regulator vent
outlet or within 1m (3ft.) of an oil tank vent or an oil tank
fill inlet;
(f) less than 0.3 m (1ft.) above grade level;
(g) within 1.8 m (6 ft.) of any combustion air inlet, unless
the appliance is otherwise certified;
(h) within 1.8m (6 ft.) of the property line;
(i) underneath a veranda, porch or deck;
(j) so that the flue gases are directed at combustible
material or any openings of surroundings buildings that
are within 1.8 m (6 ft.)
(k) less than 1m (3 ft.) from an inside corner or an L-
shaped structure;
(l) so that the bottom of the vent termination opening is
less than 0.3m (1ft.) above any surface that may support
snow, ice or debris;
(m) so that the flue gases are directed towards brick-
work, siding or other construction, in such a manner that
may cause damage from the heat or condensate from
the flue gases.
Do not locate the vent terminal near shrubs or garden
plants since the hot flue gases may stunt or kill any
growth.
Figure 3
LOCATION OF VENT TERMINAL
The following dimensions are minimum allowable distances.
DO NOT INSTALL
UNDER DECK
SNOW LINE
GROUND
12”
7’
WALKWAY
DOOR
6’
WINDOW
4’
4’
WALL
TOP VIEW OF HOUSE
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