Supplementary Document
Whole house electric tankless water heaters
The compact and powerful RP17PT & RP27PT electric
whole house tankless water heaters can be installed
virtually anywhere inside the home. They are 97%
efcient with minimal stand-by loss and have a built-in
ow sensor that ensures a constant output temperature.
www.bosch-climate.us | 18
Powerstream Pro 17 & 27 series
Features
Over 97% efciency rating
Compact and lightweight
Electronic ow switch
Flow sensor provides
a constant output
temperature
Filter screen on inlet
External temperature control
Part #
RP17PT
RP17PTK (Canada)
RP27PT
RP27PTK (Canada)
2-YEAR WARRANTY
Double Pole Cutouts
Polymer Encased Elements
Terminal Block
Flow Transducer
Control PCB
Temperature Control Knob
RP17PT for Point-of-Use or
RP27PT may be used for Whole House
RP17PT or RP27PT may be used for Whole House
Recommended Climate Zones for
Installation of the RP17PT and RP27PT
Model RP17PT is not recommended for whole house use in climates
where average ground water temperature is less than 60˚F.
CA
OR
WA
ID
NV
MT
WY
UT
AZ
NM
CO
ND
SD
NE
TX
OK
KS
MN
IA
MO
AR
LA
MI
IN
IL
WI
GA
AL
MS
TN
KY
WV
VA
NC
SC
FL
NH
VT
NY
PA
OH
NJ
RI
CT
MA
ME
MD
DE
RP17PT
RP27PT
Calculations based on 120°F Set Point temperature, 107°F shower temperature, 2.5 GPM showerhead ow rate, 1.5 GPM sink ow rate,
adequate water pressure and rated voltage. Variation from these parameters may alter actual performance. GPM shown is the hot water ow rate at 120°F
Set Point temperature. For additional information refer to the groundwater temperature map on page 5.
Inlet Temp. (F)
Summer Winter
Electric Tankless 77˚ 72˚ 67˚ 62˚ 57˚ 52˚ 47˚ 42˚ 37˚
RP 17 PT
2.7 GPM 2.5 GPM 2.2 GPM 2.0 GPM
1.9 GPM
1.7 GPM 1.6 GPM
1.5 GPM
1.4 GPM
RP 27 PT
4.3 GPM 3.8 GPM
3.5 GPM
3.2 GPM
2.9 GPM 2.7 GPM 2.5 GPM 2.3 GPM 2.2 GPM
Simultaneous Showers Sink Faucet
Note: These Powerstream Pro models require hard wiring.










