Side Wall Combustion Air Terminal; Vertical Vent Terminal; Vertical Combustion Air Terminal - Bradford White Brute MagnaTech BMGV1600 Installation And Operation Instructions Manual

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IMPORTANT: All terminals must be placed so that they remain at least 12"
above the expected snow line. Local codes may have more specific
requirements, and must be consulted. Refer to the NFPA54 National Fuel Gas
Code and your local codes for all required clearances for venting.
Figure 6. Multiple Side-Wall Terminals, Air and
Vent
depending upon local conditions.
6. Locate the terminal so the vent exhaust
does not settle on building surfaces or other
nearby objects. Vent exhaust bi-products may
damage surfaces or objects.
7. If the boiler or water heater uses ducted
combustion air from an intake terminal located
on the same wall, see See Figure 6 and Figure
5 for proper spacing and orientation.

3.4.2 Side Wall Combustion Air Terminal

Consider the following when installing the terminal.
1. Do not locate the air inlet terminal near a
source of corrosive chemical fumes (e.g.,
2. Locate the terminal so that it will not be subject
to damage by accident or vandalism. It must be
at least 7 feet ( 2.1 m) above a public walkway.
3. Locate the combustion air terminal so that it
cannot be blocked by snow. The National Fuel
Gas Code requires that it be at least 12 inches
(30 cm) above grade, but the installer may
determine it should be higher, depending upon
local conditions.
4. If the Unit is side-wall vented to the same wall,
use Figure 5 to determine the proper mounting
locations.
5. Multiple vent kits should be installed such that
the horizontal distance between outlet group
and inlet group is 84" (213 cm). (See Figure 6)
6. The vent outlet must be at least 12" above the top
of the air inlet, and must be at least 84" (213 cm)
horizontally from the air inlet. (See Figure 6).

3.4.3 Vertical Vent Terminal

When the unit is vented through the roof, the vent
must extend at least 3 feet (0.9 m) above the point at
which it penetrates the roof. It must extend at least
2 feet (0.6 m) higher than any portion of a building
within a horizontal distance of 10 feet (3.0 m), and
high enough above the roof line to prevent blockage
from snow. The vent terminal offered with the Unit can
be used in both vertical and horizontal applications.
When the combustion air is taken from the roof, the
combustion air must terminate at least 12" (30 cm)
below the vent terminal.
3.4.4
supplied rain cap or an elbow arrangement must be
used to prevent entry of rain water. The opening on
the end of the terminal must be at least 12" (30 cm)
above the point at which it penetrates the roof, and
high enough above the roof line to prevent blockage
from snow. When the vent terminates on the roof, the
combustion air must terminate at least 12" (30 cm)
below the vent terminal.
Figure 5. Minimum Venting Distance

Vertical Combustion Air Terminal

84"
213
Page 15
12"