Product Overview

These tables show achievable flow rates for specific temperature rises, and
suggest possible point-of-use fixture or fixtures for use with each model and
size. They are not intended for whole house sizing. Use actual flow rates for
an installation to determine if a particular model and size will deliver the
temperature and flow rate required.
Temperature Rise vs. Flow Rate at Max. Rated Voltage
2.5-1
3-1
3.5-1
& 4-2
6-2
10
20
30
40
50
80
90
70
60
0
0.750.25 0.5 1.0 1.25 1.5 1.75 2.0
Mini-E
0.40
Mini
0.32
Temp Rise °F
Flow Rate GPM
0.21
0.4
0.66
0.5
1.0
0.77
Aerator /
restrictor
activation
Mini-E
activation
Mini
2-1
2-1
0.5
0.3
0.48
Mini
®
&
Mini
®
-E
DHC 3-1 Classic Min. activation 0.32 gpm
DHC 3/3.5-1 Trend & Plus
@
3.0 kW output Min. activation 0.26 gpm
DHC 3/3.5-1 Trend & Plus
@
3.5 kW output Min. activation 0.26 gpm
3.5 kW Mini
™
/
Mini
™
-E 3.5-1 Min. activation 0.40 / 0.30 gpm
0.50
GPM
0.63
GPM
0.85
GPM
1.33
GPM
5.7 kW Mini
™
/
Mini
™
-E 6-2 Min. activation 0.77 / 0.48 gpm
0.81
GPM
1.02
GPM
1.39
GPM
2.16
GPM
3.8 kW DHC 4-2 Classic Min. activation 0.43 gpm
DHC 4/6-2 Trend & Plus
@
3.8 kW output Min. activation 0.26 gpm
DHC-E 4/6-2 Trend & Plus
@
3.8 kW output Min. activation 0.26 gpm
DHC 4/6-2 Trend & Plus
@
6.0 kW output Min. activation 0.26 gpm
DHC-E 8/10-2 Classic
@
7.2 kW output Min. activation 0.26 gpm
DHC-E 4/6-2 Trend & Plus
@
6.0 kW output Min. activation 0.26 gpm
DHC 8/10-2 Trend
@
7.2 kW output Min. activation 0.26 gpm
DHC 8/10-2 Trend
@
9.6 kW output Min. activation 0.26 gpm
0.54
GPM
0.68
GPM
0.93
GPM
1.44
GPM
MAX. FLOW RATE
MAX. FLOW RATE
MAX. FLOW RATE
3.0 kW Mini
™
/
Mini
™
-E 3-1 Min. activation 0.40 / 0.30 gpm
MAX. FLOW RATE
0.43
GPM
0.54
GPM
0.73
GPM
1.14
GPM
42°F 52°F 62°F 72°F
2.4 kW Mini
™
/
Mini
™
-E 2.5-1 Min. activation 0.40 / 0.30 gpm
MAX. FLOW RATE
0.34
GPM
0.43
GPM
0.59
GPM
0.91
GPM
1.8 kW Mini
™
/
Mini
™
-E 2-1 Min. activation 0.21 GPM | Internally restricted to 0.32 / 0.40 GPM
MAX. FLOW RATE
0.26
GPM
0.32
GPM
0.32 / 0.40
GPM
0.32 / 0.40
GPM
POSSIBLE FIXTURE TYPES
POSSIBLE FIXTURE TYPES
POSSIBLE FIXTURE TYPES
POSSIBLE FIXTURE TYPES
POSSIBLE FIXTURE TYPES
7.2 kW DHC 8-2 Classic
Min. activation 0.69 gpm
4.8 kW DHC 5-2 Classic Min. activation 0.43 gpm
0.68
GPM
0.86
GPM
1.17
GPM
1.82
GPM
6.0 kW DHC 6-2 & 6-3 Classic Min. activation 0.48 gpm
0.85
GPM
1.08
GPM
1.46
GPM
2.28
GPM
9.0 kW DHC 9-3 Classic Min. activation 0.8 gpm
1.28
GPM
1.62 / 0.90
GPM
2.2 / 1.06
GPM
3.42 / 1.28
GPM
9.6 kW DHC 10-2 Classic Min. activation 0.79 gpm
MAX. FLOW RATE
MAX. FLOW RATE
MAX. FLOW RATE
4.5 kW DHC 4-3 Classic Min. activation 0.43 gpm
MAX. FLOW RATE
0.64
GPM
0.81
GPM
1.10
GPM
1.71
GPM
POSSIBLE FIXTURE TYPES
POSSIBLE FIXTURE TYPES
POSSIBLE FIXTURE TYPES
POSSIBLE FIXTURE TYPES
POSSIBLE FIXTURE TYPES
Mini-E 6-2
1 or 2 sinks
Mini-E 2.5-1 only
Mini
™
/
Mini
™
-E 4-2 Min. activation 0.40 / 0.30 gpm
3.4 kW DHC 3-2 Classic Min. activation 0.32 gpm
0.47
GPM
0.59
GPM
0.81
GPM
1.25
GPM
MAX. FLOW RATE
POSSIBLE FIXTURE TYPES
MAX. FLOW RATE
1.0
GPM
1.3
GPM
1.7 / 1.0
GPM
2.7 / 1.3
GPM
POSSIBLE FIXTURE TYPES
MAX. FLOW RATE
1.3
GPM
1.7
GPM
2.3 / 1.3
GPM
3.6 / 1.7 / 1.3
GPM
POSSIBLE FIXTURE TYPES
DHC-E 8/10-2 Trend & Plus
@
9.6 kW output Min. activation 0.26 gpm
DHC-E 8/10-2 Trend & Plus
@
7.2 kW output Min. activation 0.26 gpm
1.8 – 5.7 kW Mini
™
/Mini
™
3.0 kW
3.3 kW
3.8 kW
4.5 kW
4.8 kW
6.0 kW
7.2 kW
9.0 kW
9.6 kW
10
20
30
40
50
80
90
70
60
0
0.750.5 1.0 1.25 1.5 1.75 2.0
Temp
Rise
F
Flow Rate GPM
Temperature Rise vs. Flow Rate at Maximum Rated Voltage
42°F 52°F 62°F 72°F
2.7 / 1.9 / 1.6
GPM
3.4 / 2.2 / 1.9
GPM
4.6 / 2.7 / 2.2
GPM
7.2 / 3.4 / 2.7
GPM
MAX. FLOW RATE
POSSIBLE FIXTURE TYPES
MAX. FLOW RATE
3.4 / 2.4 / 2.1
GPM
4.3 / 2.8 / 2.4
GPM
5.8 / 3.4 / 2.8
GPM
8 / 4.3 / 3.4
GPM
POSSIBLE FIXTURE TYPES
4.1 / 2.5
GPM
5.1 / 2.9
GPM
7.0 / 3.4
GPM
8 / 4.1
GPM
MAX. FLOW RATE
POSSIBLE FIXTURE TYPES
5.1 / 3.1
GPM
6.4 / 3.6
GPM
8 / 4.2
GPM
8 / 5.1
GPM
MAX. FLOW RATE
POSSIBLE FIXTURE TYPES
MAX. FLOW RATE
1.7 / 1.2
GPM
2.1 / 1.4
GPM
2.9 / 1.7 / 1.4
GPM
4.5 / 2.1 / 1.7
GPM
POSSIBLE FIXTURE TYPES
2.0 / 1.4
GPM
2.6 / 1.7 / 1.4
GPM
3.5 / 2.0 / 1.7
GPM
5.4 / 2.6 / 2.0
GPM
MAX. FLOW RATE
POSSIBLE FIXTURE TYPES
19.2 kW Tempra® 20 Trend & Plus Min. activation 0.50 gpm
24.0 kW Tempra® 24 Trend & Plus Min. activation 0.50 gpm
28.8 kW Tempra® 29 Trend & Plus Min. activation 0.77 gpm
36.0 kW Tempra® 36 Trend & Plus Min. activation 0.77 gpm
DHC-E 12/15-2 Trend & Plus
@
12.0 kW output Min. activation 0.26 gpm
Tempra® 12 Trend & Plus Min. activation 0.37 gpm
12.0 kW DHC 12/15-2 Trend & Plus
@
12.0 kW output Min. activation 0.26 gpm
14.4 kW DHC 12/15-2 Trend & Plus
@
14.4.0 kW output Min. activation 0.26 gpm
DHC-E 12/15-2 Trend & Plus
@
14.4.0 kW output Min. activation 0.26 gpm
Tempra® 15 Trend & Plus Min. activation 0.50 gpm
Temp Rise °F
10
20
30
40
50
80
90
70
60
0
1.00.5 1.5 2.0 2.5 3.0 3.5 4.0 4.5
5.0 5.5 6.0 6.5 7.0 7.5 8.0
12.0 kW
14.4 kW
19.2 kW
24.0 kW
28.8 kW
36.0 kW
12.0 – 36.0 kW DHC Trend, DHC-E Trend & Plus, Tempra Trend & Plus
Temperature Rise vs. Flow Rate at 240 V and 208 V
3.0 – 9.6 kW DHC & DHC-E Classic, DHC Trend, DHC-E Trend & Plus
Commercial Point-of-Use Sizing Guides
Looking for commercial/industrial 3-phase water heaters?
High capacity 3-phase electric water heaters from Stiebel Eltron are
available for demanding commercial, industrial, and safety applications
in all common voltages and sizes from 12 to 144 kW.
Our 3-phase commercial/industrial direct line is 800.TANKLESS
FIXTURES & FLOW RATES
KITCHEN SINK
(Range 1.0-2.2)
90°F 110°F 120°F 120°F
UTILITY/JANITOR’S SINK
(Range 1.0-2.2)
SHOWER
(Range 1.0-2.5)
LAV SINK
(Range 0.5-1.5)
SINGLE OR MULTIPLE (Number varies)
SHOWING POSSIBLE MODEL SUITABILITY & TEMP. FOR MAX. FLOW RATE CALCULATION
42°F
52°F
72°F
62°F