Technical Specifications

Simply the Best

DHC Sizing Guide and Technical Data

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

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

DHC Tankless Electric Water Heater Sizing Guide

DHC MODEL

Std.

High

Non-

DHC 3-1 DHC 3-2 DHC 4-2

LAVATORY SINK

0.5

1.0

2.0

Flow

GPM

DHC 4-3

code

Low

Std.

1.0

2.0

1.0 -2.0

KITCHEN SINK

Utility /

Janitor’s

Sink

DHC 6-2 DHC 8-2 DHC 9-3 DHC 10-2DHC 5-2

Recommendations for 240 V units are correct if installed with 240 V service.

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

Cool (Northern) Climate

Warm (Southern) Climate

Inlet water 45°F - 55°F

Inlet water 55°F - 70°F

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.

Scroll for temp rise charts and technical data.

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Simply the Best DHC Sizing Guide and Technical Data DHC Tankless Electric Water Heater Sizing Guide DHC MODEL DHC 3-1 DHC 3-2 DHC 4-2 DHC 4-3 DHC 5-2 DHC 6-2 DHC 8-2 DHC 9-3 DHC 10-2 KITCHEN SINK LAVATORY SINK Flow GPM Std. 0.5 High 1.0 Non- 2.0 code Low 1.0 Std. 2.0 Utility / Janitor’s 1.0 -2.
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Simply the Best DHC Sizing Guide and Technical Data Temperature Rise vs. Flow Rate at Maximum Rated Voltage 90 80 70 Temp Rise °F 60 50 40 DHC 10-2 DHC 9-3 DHC 8-2 DHC 6-2 DHC 5-2 DHC 4-3 DHC 4-2 DHC 3-2 DHC 3-1 30 20 10 0 0.5 0.69 0.75 0.79 1.0 1.25 Flow Rate GPM 1.5 1.75 2.0 Temperature Rise vs. Flow Rate at 208 V 90 80 70 Temp Rise °F 60 50 40 30 DHC 10-2 DHC 8-2 DHC 6-2 DHC 5-2 DHC 4-2 DHC 3-2 20 10 0 0.5 0.69 0.75 0.79 1.0 1.25 1.5 1.75 2.0 Flow Rate GPM Scroll for technical data.
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Simply the Best DHC Sizing Guide and Technical Data Conforms to ANSI/UL Std. 499 Certified to CAN/CSA E335-1 & E335-2-35 Technical Data Tested and certified by WQA against NSF/ANSI 372 for lead free compliance. Model DHC 3-1 DHC 3-2 DHC 4-2 DHC 4-3 DHC 5-2 DHC 6-2 DHC 8-2 DHC 9-3 DHC 10-2 Item no.