Ground water temperature map update

Non-Condensing
Model: RL75i/e
BTU: 180,000
Ground Water
Temperature
Max Flow Rate
(GPM)
Simultaneous Shower Use
35° F 3.5
37° F 3.6
42° F 3.8
47° F 4.0
52° F 4.3
57° F 4.7
62° F 5.1
67° F 5.6
72° F 6.2
77° F 6.9
2022107.A
Copyright 2022 Rinnai America Corporation. Rinnai is a registered trademark of Rinnai Corporation used under license by Rinnai America Corporation.
Rinnai America Corporation continually updates materials, and as such, content is subject to change without notice.
06/2022
• Customer has the option of using the following appliances instead of a shower: Residential grade clothes washing
machine, hand sink or dishwasher.
• Shower heads will be as above. If custom shower fixtures i.e. body sprays, high flow rate rain heads are used, please
contact Rinnai.
Use your location on the
map to correlate with legend
for average ground water
temperature in the U.S.
For Hawaii and Puerto Rico,
use ground water temperature
of 75° F
For Canada and Alaska, use
ground water temperature
range 35-42° F.
Average inlet water temperature.
These are general temperature
zones, actual inlet temperature may
be aected by local variations and
seasonal changes.
77
72
67
62
57
52
47
42
37
35
DEGREES
FAHRENHEIT
United States Ground Water Temperature Map
Residential Use
Note: Simultaneous shower use was rounded to the nearest whole number based on the following data: Tankless set temperature of 120°F, mixed shower temperature of 105°F, ground water temperature as
shown in the chart, and shower head flow rate of 2 gpm.