The RBI Spectrum Series boilers and water heaters
offer the highest thermal efficiency available in 
atmospheric combustion today and is the only product in its size range which uses 7/8" inside diameter finned copper
tubes in the heat exchanger. Larger diameter tubes handle higher flow rates and provide longer service life than
competitive models that use 5/8" tubes. Available as residential heating boilers or light commercial water heaters from
50,000 to 399,000 BTU's.
- 84% efficiency
- 50,000 to 399,000 BTUH
- Built-in draft diverter
- 7/8" ID tube commercial exhanger
- Reversible heat exchanger
- Stainless burners
- Bronze headers on water heaters
- Diagnostic panel standard
- ON-OFF, 2-stage, or Modulation
- Outdoor approved
- Now available 4-Pass
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RBI Sections:
· Series 8800
· Series 8900
· Dominator
· LCD Dominator
· Futera II
· Futera III
· Spectrum
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