GF-5050
Innovation Series & ReCon Water Heater
TAG-0043_0Q
Venting and Combustion Air Guide
Page
36
of
39
AERCO International, Inc.
•
100 Oritani Dr.
•
Blauvelt, New York 10913
•
Phone: 800-526-0288
12/01/2016
3.8. FLUE VENT PRESSURE DROP TABLES
The tables below list the pressure drop in flue vents in equivalent feet (eq. ft.) or equivalent meters
(eq. m) for single Innovation and ReCon water heaters at various duct diameters. All values are based
on the assumption of 140°F (60°C) Water Temperature and 70°F (21°C) Rise at Sea Level.
Table 9: Flue Vent Pressure Drop – Innovation 600 MBTU Water Heaters
Exit Loss
Flue Vent
Diameter in
inches (mm)
Flue Velocity
in ft./sec.
(m/sec.)
Straight Run
in eq. ft. / foot
(eq. m/m)
90° elbow in
eq. ft.
(eq. m)
45° elbow
in eq. ft.
(eq. m)
Horizontal
Termination
in eq. ft.
(eq. m)
Vertical
Termination
in eq. ft.
(eq. m)
4 (101.6)
28.6 (8.7)
2.2 (0.7)
12.1 (3.7)
9 (2.7)
10.6 (3.2)
19.7 (6)
6 (152.4)
12.7 (3.9)
0.3 (0.1)
1.7 (0.5)
1.3 (0.4)
2.1 (0.6)
3 (0.9)
8 (203.2)
7.2 (2.2)
0.1 (0)
0.4 (0.1)
0.3 (0.1)
0.7 (0.2)
1.2 (0.4)
10 (254)
4.6 (1.4)
0 (0)
0.2 (0.1)
0.1 (0)
0.3 (0.1)
0.5 (0.2)
*
NOTE
: 4" vent is limited to 80 eq. ft. (24.4 eq. m) total, use for short runs only
Table 10: Discharge Flue Vent Pressure Drop – Innovation 800 MBTU Water Heater
Exit Loss
Flue Vent
Diameter in
inches (mm)
Flue Velocity
in ft./sec.
(mm/sec.)
Straight Run
in eq. ft. / foot
(eq. m/m)
90° elbow
in eq. ft.
(eq. m)
45° elbow
in eq. ft.
(eq. m)
Horizontal
Termination
in eq. ft.
(eq. m)
Vertical
Termination
in eq. ft.
(eq. m)
6 (152.4)
17 (5.2)
0.5 (0.2)
3 (0.9)
2.2 (0.7)
3.7 (1.1)
5.3 (1.6)
8 (203.2)
9.5 (2.9)
0.1 (0)
0.8 (0.2)
0.6 (0.2)
1.2 (0.4)
2.2 (0.7)
10 (254)
6.1 (1.9)
0 (0)
0.3 (0.1)
0.2 (0.1)
0.5 (0.2)
0.9 (0.3)
12 (304.8)
4.2 (1.3)
0 (0)
0.1 (0)
0.1 (0)
0.2 (0.1)
0.4 (0.1)
Table 11: Flue Vent Pressure Drop – Innovation 1060 & RECON 1000 MBTU Water Heater
Exit Loss
Flue Vent
Diameter in
inches (mm)
Flue Velocity
in ft./sec.
(mm/sec.)
Straight Run
in eq. ft. / foot
(eq. m/m)
90° elbow
in eq. ft.
(eq. m)
45° elbow
in eq. ft.
(eq. m)
Horizontal
Termination
in eq. ft.
(eq. m)
Vertical
Termination
in eq. ft.
(eq. m)
6 (152.4)
21.2 (6.5)
0.7 (0.2)
4.7 (1.4)
3.5 (1.1)
5.8 (1.8)
8.3 (2.5)
8 (203.2)
11.9 (3.6)
0.2 (0.1)
1.2 (0.4)
0.9 (0.3)
1.8 (0.5)
3.4 (1)
10 (254)
7.6 (2.3)
0.1 (0)
0.4 (0.1)
0.3 (0.1)
0.8 (0.2)
1.4 (0.4)
12 (304.8)
5.3 (1.6)
0 (0)
0.2 (0.1)
0.1 (0)
0.4 (0.1)
0.7 (0.2)
Table 12: Discharge Flue Vent Pressure Drop – Innovation 1350/1400 MBTU Water Heater
Exit Loss
Flue Vent
Diameter in
inches (mm)
Flue Velocity
in ft./sec.
(mm/sec.)
Straight Run
in eq. ft. / foot
(eq. m/m)
90° elbow
in eq. ft.
(eq. m)
45° elbow
in eq. ft.
(eq. m)
Horizontal
Termination
in eq. ft.
(eq. m)
Vertical
Termination
in eq. ft.
(eq. m)
6 (152.4)
28.6 (8.7)
1.3 (0.4)
8.6 (2.6)
6.4 (2)
10.6 (3.2)
15.2 (4.6)
8 (203.2)
16.1 (4.9)
0.3 (0.1)
2.2 (0.7)
1.7 (0.5)
3.4 (1)
6.2 (1.9)
10 (254)
10.3 (3.1)
0.1 (0)
0.8 (0.2)
0.6 (0.2)
1.4 (0.4)
2.6 (0.8)
12 (304.8)
7.2 (2.2)
0 (0)
0.3 (0.1)
0.3 (0.1)
0.7 (0.2)
1.2 (0.4)
