Specification

Tempra
®
Sizing Guide and Technical Data
17 West St., W. Hatfield, MA 01088 | 800.582.8423 | 413.247.3380 | fax [phone] | info
@
stiebel-eltron-usa.com | www.stiebel-eltron-usa.com
Tempra
®
Sizing Guide Whole House Tankless Electric Water Heater
TEMPRA
®
MODEL
1 2 / 1 2 P l u s
15 / 15 Plus
1 Bath
2 Baths
3 Baths
4 Baths
29 / 29 Plus20 / 20 Plus
Install 2
24 / 24 Plus
Install 2
NUMBER OF BATHROOMS WITH
SHOWER IN HOUSE / CONDO
3 6 / 36 Plus
HI
AK
MB
ON
QC
PE
NS
NH
VT
MA
CT
RI
NJ
DE
MD
NB
ME
NY
PA
WV
VA
NC
KY
TN
SC
GA
MS
AL
MO
AR
LA
TX
FL
OH
IN
IL
ID
OR
WA
BC
NV
MT
WY
UT
AZ
CA
NM
CO
IA
MN
ND
SD
NE
KS
OK
MI
WI
AB
SK
Warm (Southern) Climate
Inlet water 55°F - 70°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.
Cool (Northern) Climate
Inlet water 45°F - 55°F
DRAWS 120 A
Requires minimum
200 A electric service
DRAWS 150 A
Requires minimum
300 A electric service
DRAWS 100 A
Requires minimum
200 A electric service
DRAWS 80 A
Requires minimum
125 A electric service
DRAWS 60 A
Requires minimum
100 A electric service
DRAWS 50 A
Requires minimum
100 A electric service
Technical data and temp. rise charts on next page.
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