The models with a single heat exchanger can be used for solar applications with some form of external backup heater. On the models with dual heat exchangers, the upper coil is typically connected to a space heating boiler fired by any fuel and the lower coil is connected to the solar radiant heat integrator panels. All Stiebel Eltron SB/SBB series water heaters can also be used as high capacity indirectly fired water heaters in conjunction with any type of heating boiler.
- The heat exchangers are heavy gauge steel with procelain enamel coating
- Sacrificial anode rod with wear indicator
- 3" foam insulation for low standby heat loss
- Dual heat exchanger
Installation Instructions: view PDF file
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