Applications Manual THERM/GREENTHERM Tankless Water Heaters | 11
Bosch Thermotechnology Corp.
Data subject to change
10 20 30 40 50 60 70 80 90
9
10
11
8
12
13
100 110 120 130 140
7
6
4
3
2
1
0
5
Temperature rise (°F)
Flow
Rate
(GPM)
C 1210 ES/
C 1210 ESC
C 950 ES
C 1050 ES
Figure 3 Flow rate vs. temperature rise - condensing models
10 20 30 40 50 60 70 80 90
9
10
11
8
100 110 120 130 140
7
6
4
3
2
1
0
5
Temperature rise (°F)
Flow
Rate
(GPM)
830 ES
520 HN/
520 PN
330 PN
940 ES/
940 ESO
Figure 4 Flow rate vs. temperature rise - non-condensing models
Flows above 10 GPM require installation of a
mixing valve to help mitigate pressure drop in the
water heater and plumbing system
Temperature rises above 110 °F or more,
or output temperatures above 140 °F require
either a commercial unit or optional accessories
such as a high temperature kit.