Owner`s manual

27020-3-0410 Page 21
90
ELBOW°
2’
(61.0cm)
27’
(8.2m)
5’
(1.5m)
VENT TERMINAL
90° ELBOW
(NOT COUNTED)
3 FEET
FIRST 90
DOES NOT GET COUNTED
WHEN WITHIN 6” (15.2cm)
OFF BACK OF HEATER
° ELBOW
Figure 25
SingleFlue-HorizontalTallVentRun
Example Calculation Max Vent Run 40’
H = 5’ + 2’ = 7’
V = 27’
(2) - 90° = 6’
Total = 40’
VENT EXAMPLES FOR SINGLE FLUE (cont.)
90 ELBOW°
36’
(11m)
1’
(30.5cm)
SINGLE FLUE ADAPTOR
Figure26
Single Flue - Vertical Vent Run
H = 36’
V = 1’
(1) - 90° = 3’
Total = 40’
90° ELBOW
EXTERIOR GRADE
FLUE CENTER
6”
(15.2cm)
MIN.
12” (30.5cm) MIN.
1/4” DOWNWARD SLOPE
PER FOOT TO OUTSIDE
Figure 27
MinimumExteriorGradeDimension-SingleFlue,Horizon-
tal Venting Below Floor