The RBI 8900 Series of domestic hot water heaters and boilers have been operating reliably and efficiently since their inception. In addition to their consistent performance,  they have come to be appreciated for their ease of serviceability.
The unique design allows key components to slide out for easy access resulting in minimal interruption to service. Inspection and replacement of the combustion chamber by the simple removal of an end panel and end refractory can be done in less than 15 minutes.
Once removed, the combustion chamber and burners can be replaced individually or completely without disturbing the casing or venting of the unit. The heat exchanger can be removed for service or replacement by removing the headers and the front refractory.
All models come with intermittent pilot ignition, adjustable high limit, 24 volt gas valve with either single-stage or two-stage firing. A motorized gas valve for modulation firing is also available.
Reliability
- 81% Efficient.
- Integral Draft Diverter Single Flue Opening.
- Heavy Duty Structural Steel Frame.
- 16 or 18 Guage Sheet Metal Components.
- Finned Copper Tube Heat.
- Various Firing Modes: On/Off, Two-Stage or Motorized Modulation.
- Five-Year Heat Exchanger Warranty, Hot Water Supply Boilers.
- Ten-Year Heat Exchanger Warranty, Hydronic Heating Boiler.
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Serviceability
- Slide Out Heat Exchanger.
- Up Front 24 Volt Controls.
- Slide Out Burner Tray.
- Victaulic Connections.
- 2-1/2" Interlocking Castible Refractory for added strength and higher insulation value.
- All Major Components can be inspected or removed without disturbing boiler casing or breaching.
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8900 Series Information and Documentation
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