RBI DOMINATOR Series - Page 7

Fi d b b il & h B il M l
Fi
nne
d
co
pp
er tu
b
e gas
b
o
il
ers
&
water
h
eaters –
B
o
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anua
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7
F
F
Figure 4 Horizontal Combustion Air and Venting for a Single Unit
Figure 5 Horizontal Combustion Air and Venting for a Multiple Units
When running horizontal combustion air and venting for single or multiple units, exhaust and combustion air terminals must be
installed on the same plane (outside wall) in order to prevent pressure di erences due to prevailing winds. In cold climates, double-
wall or insulated inlet pipe recommended to prevent condensation.
16 FT 4.9 m
1/4 IN. PER FOOT
20 mm/m
1.5 FT 0.5 m
0
1
2
3
4
5
6
7
8
9
05101520
Horizontal Distance, X
Y ,ecna
t
s
i
D l
acit
reV
2000 & Larger
1201 To 2000
901 To 1200
200 To 900
1000 BTU'S
1.5 FT 0.5 m
2 IN. 5.0 cm