Owner`s manual

27020-3-0410Page 26
6’
5’
10’
10’
SINGLE FLUE ADAPTER
CO-LINEAR DIRECT VENT ADAPTER
FIRST 90
DOES NOT GET COUNTED
WHEN WITHIN 6” (15.2cm)
OFF BACK OF HEATER
° ELBOW
90° ELBOW
3 FEET
90° ELBOW
3 FEET
CO-LINEAR TRANSITION
OPTIONAL VERTICAL
TERMINATION CAP
PTRAP
H = 5’ + 6’ = 11’
V = 10’+ 10’= 20’
(3) 90° = 9’
TOTAL= 40’
SIDE VIEW
3” MIN.
12” MIN.
FLAT ROOF
3” MIN.
12” MIN.
EXHAUST
AIR INTAKE
EXHAUST
AIR INTAKE
VERTICAL EXAMPLES FOR COLINEAR DIRECT VENT
Figure 35
Calculation example of vent run maximum 40’
Determining Minimum Vent Height Above the Roof
WARNING: Major U.S. building codes specify minimum chimney and/or vent height above the rooftop. These minimum heights are
necessary in the interest of safety.
SpecialNote:Theventterminal(PTrap,Ventcaportwo90°elbows)andrst90°elbowoffbackoftheheater,whenwithin6”
(15.2 cm) off back of the heater, do not contribute to the overall vent length measurement. For each 45° elbow installed in the
horizontalrun,thelengthofthehorizontalrunMUSTbereducedby1.5feet(45cm).Thisdoesnotapplyifthe45°elbowsare
installedontheverticalpartoftheventsystem.Reducethelengthofthehorizontalrun3feet(91.4cm)forevery90°elbow.
Note: Exhaust must be a minimum of 3”
above air intake inlet.