Bosch SSB255 - Efficiency Curves

SSB 6720818454 (2016/02) US
Product description | 11
2.8 Efciency Curves
Fig. 6 Thermal Efciency Curves SSB255*
* Thermal Efciency curve is for reference only as this is a residential boiler
Fig. 7 Thermal Efciency Curves SSB399
Thermal Efficiency
Return Water Temperature (°F) @ 36 Degree Rise
86%
88%
90%
92%
94%
96%
98%
100%
70 80 90 100 110 120 130 140 150 160 170
100% input
30% input
20% input
Thermal Efficiency
Return Water Temperature (°F) @ 36 Degree Rise
86%
88%
90%
92%
94%
96%
98%
100%
70 80 90 100 110 120 130 140 150 160 170
100% input
30% input
20% input