Roberts Gorden Combat UHD[X][S][R] 75 User Manual
Page 21
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SECTION 6: V
ENTING
15
Figure 9: Separated Combustion Heater - Vertical and Horizontal Vent Termination
Figure 10: Concentric Vent Box
Model
Air Intake &
Vent Diameter
Part Number
UHD[X]S[R] 75 - 125
4" (10 cm)
90502102
4" (10 cm) Single
Wall Vent Pipe
(By Others)
Seal joint between single wall
and Type B vent with silicone sealant.
Use 3 sheetmetal
screws equally
spaced around joint.
Use 3 sheetmetal
screws equally
spaced around collar.
Concentric
Vent Box
6" (15 cm) Single
Wall Inlet Air Pipe
(By Others)
One piece of 4" (1
0 cm) diamet
er, 1/4" (6 cm) air
space t
ype
“B”
vent.
Selkir
k Model R
V or e
quiv
alent.
(By other
s)
Combustion Air
to Heater
Toward
Outside
Exhaust
from Heater
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