12 | Product description
100%
98%
96%
94%
92%
90%
88%
86%
70
80
Fig. 8
Thermal Efficiency Curves SSB160*
* Thermal Efficiency curve is for reference only as this is a residential boiler
6720818456 (2018/06) US
90
100
110
Return Water Temperature (°F) @ 36 Degree Rise
120
130
140
20% input
30% input
100% input
150
160
170
SSB