Sizing Guide

ManualsBrandsStiebel Eltron ManualsHVACDHC Line 2 GPM 12 Kilowatt 240 Volt Electric Point of Use Tankless Water Heater

DHC-E Single or Multi-Point-of-Use Sizing Guide

17 West St., W. Hatﬁeld, MA 01088 | 800.582.8423 | 413.247.3380 | fax 413.247.3369 | info

stiebel-eltron-usa.com | www.stiebel-eltron-usa.com

Scroll for temp rise charts.



FIXTURES & FLOW RATES

KITCHEN SINK

(Range 1.0-2.2)

90°F

110°F

120°F

UTILITY/JANITOR’S SINK

(Range 1.0-2.2)

SHOWER

(Range 1.0-2.5)

Tempra

Trend & Plus | Min. activation 0.50 GPM

Tempra

Trend & Plus | Min. activation 0.50 GPM

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

Tempra

Trend & Plus | Min. activation 0.50 GPM

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

Tempra

Trend & Plus | Min. activation 0.77 GPM

4.1 / 2.5

GPM

5.1 / 2.9

GPM

7.0 / 3.4

GPM

8 / 4.1

GPM

Tempra

Trend & Plus | Min. activation 0.77 GPM

5.1 / 3.1

GPM

6.4 / 3.6

GPM

8 / 4.2

GPM

8 / 5.1

GPM

MAX. FLOW RATE

42°F 52°F 62°F 72°F

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

DHC-E 12

Min. activation 0.264 GPM

Tempra

Trend & Plus Min. activation 0.37 GPM

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

DHC-E 8/10

@ 9.6 kW | Min. activation 0.264 GPM

MAX. FLOW RATE

1.3

GPM

1.7

GPM

2.3 / 1.3

GPM

3.6 / 1.7 / 1.3

GPM

DHC-E 8/10

@ 7.2 kW | Min. activation 0.264 GPM

MAX. FLOW RATE

1.0

GPM

1.3

GPM

1.7 / 1.0

GPM

2.7 / 1.3

GPM

SINGLE LAV SINK

(Range 0.5-1.5)

MULTIPLE SINKS

Number varies

SHOWING POSSIBLE

MODEL SUITABILITY

showing possible model suitability

& temp. for max ﬂowrate calculation

Sizing Guide for Commercial Point-of Use

Not intended for whole house sizing

POSSIBLE FIXTURE TYPES

TEMP. FOR MAX.

FLOW RATE

CALCUL ATION

42°F

52°F

72°F

62°F

FIXTURES & FLOW RATES

KITCHEN SINK

(Range 1.0-2.2)

90°F

110°F

120°F

UTILITY/JANITOR’S SINK

(Range 1.0-2.2)

SHOWER

(Range 1.0-2.5)

Tempra

Trend & Plus | Min. activation 0.50 GPM

Tempra

Trend & Plus | Min. activation 0.50 GPM

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

Tempra

Trend & Plus | Min. activation 0.50 GPM

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

Tempra

Trend & Plus | Min. activation 0.77 GPM

4.1 / 2.5

GPM

5.1 / 2.9

GPM

7.0 / 3.4

GPM

8 / 4.1

GPM

Tempra

Trend & Plus | Min. activation 0.77 GPM

5.1 / 3.1

GPM

6.4 / 3.6

GPM

8 / 4.2

GPM

8 / 5.1

GPM

MAX. FLOW RATE

42°F 52°F 62°F 72°F

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

DHC-E 12

Min. activation 0.264 GPM

Tempra

Trend & Plus Min. activation 0.37 GPM

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

DHC-E 8/10

@ 9.6 kW | Min. activation 0.264 GPM

MAX. FLOW RATE

1.3

GPM

1.7

GPM

2.3 / 1.3

GPM

3.6 / 1.7 / 1.3

GPM

DHC-E 8/10

@ 7.2 kW | Min. activation 0.264 GPM

MAX. FLOW RATE

1.0

GPM

1.3

GPM

1.7 / 1.0

GPM

2.7 / 1.3

GPM

SINGLE LAV SINK

(Range 0.5-1.5)

MULTIPLE SINKS

Number varies

SHOWING POSSIBLE

MODEL SUITABILITY

showing possible model suitability

& temp. for max ﬂowrate calculation

Sizing Guide for Commercial Point-of Use

Not intended for whole house sizing

POSSIBLE FIXTURE TYPES

TEMP. FOR MAX.

FLOW RATE

CALCULATION

42°F

52°F

72°F

62°F

This guide shows possible point-of-use fixture or fixtures for use with

each DHC-E. It is not intended for whole house sizing. Use actual achievable

flow rates to determine if a particular model and size will deliver the

temperature and flow rate required for the installed fixture.

FIXTURES & FLOW RATES

KITCHEN SINK

(Range 1.0-2.2)

90°F

110°F

120°F

UTILITY/JANITOR’S SINK

(Range 1.0-2.2)

SHOWER

(Range 1.0-2.5)

42°F 52°F 62°F 72°F

DHC-E 12

Min. activation 0.264 GPM

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

DHC-E 8/10

@ 9.6 kW | Min. activation 0.264 GPM

MAX. FLOW RATE

1.3

GPM

1.7

GPM

2.3 / 1.3

GPM

3.6 / 1.7 / 1.3

GPM

DHC-E 8/10

@ 7.2 kW | Min. activation 0.264 GPM

MAX. FLOW RATE

1.0

GPM

1.3

GPM

1.7 / 1.0

GPM

2.7 / 1.3

GPM

SINGLE LAV SINK

(Range 0.5-1.5)

MULTIPLE SINKS

Number varies

SHOWING POSSIBLE

MODEL SUITABILITY

showing possible model suitability

& temp. for max ﬂowrate calculation

Sizing Guide for Commercial Point-of Use

Not intended for whole house sizing

POSSIBLE FIXTURE TYPES

TEMP. FOR MAX.

FLOW RATE

CALCULATION

42°F

52°F

72°F

62°F

Recommendations are correct if unit is installed with 240 V service.

Increase one model size if unit will be installed with 208 V service.

Call Stiebel Eltron at 800.582.8423 if you have any sizing questions, or if you have

high ﬂow showers, or another out-of-the-ordinary situation. Stiebel Eltron service

representatives can make recommendations on sizing, or provide assistance with

our water heaters, to both homeowners and professional installers.

Summary of content (2 pages)

PAGE 1
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 4.1 / 2.5 GPM 5.1 / POSSIBLE FIXTURE TYPES & Plus | Min. activation 0.50 GPM 3.4 / 2.4 / 2.1 GPM 4.3 / 2.8 / 2.4 GPM 5.8 / 3.4 / 2.8 GPM Tempra 36 Trend & Plus 8 / 4.3 / 3.4 GPM ® MAX. FLOW RATE | Min. activation 0 5.1 / 3.1 GPM POSSIBLE FIXTURE TYPES DHC-E Single or7.0 /Multi-Point-of-Use Sizing Guide 5.1 / 2.9 3.4 8 / 4.1 & Plus | Min. activation 0.77 GPM 4.1 / 2.
PAGE 2
DHC-E Single or Multi-Point-of-Use Sizing Guide Temperature Rise vs. Flow Rate at 240 V and 208 V 90 80 70 Temp Rise °F 60 50 40 30 20 DHC-E 12 DHC-E 8/10 10 Stage 2 @ 240V Stage 1 @ 240V Stage 2 @ 208V Stage 1 @ 208V 0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 Flow Rate GPM Temperature Rise vs. Flow Rate at 240 V 90 80 70 50 40 30 20 DHC-E 12 DHC-E 8/10 10 Stage 2 @ 240V Stage 1 @ 240V Temperature Rise vs. Flow Rate at 208 V 0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.