RCB1000AN RCB_Boiler_Floor Model Series

Experience the next level in hydronic heating with the RCB•Series™ Wall-Hung and Floor-Standing Boilers from Rinnai, offering superior thermal efficiency and intelligent, user-friendly controls. Choose from multiple models, including wall-hung (RCB301AN, RCB399AN) and floor-standing (RCB500AN, RCB750AN, RCB1000AN) options to fit your space and capacity requirements. Each boiler features a 10:1 turndown ratio, allowing precise adjustments to meet varying demand. Built with a 316L stainless steel water tube heat exchanger for lasting durability. Get the quality you expect from Rinnai backed by a 10-Year (Non-Prorated) on the Heat Exchanger plus 1 year Parts and 1 Year Labor.

  • 98% Thermal Efficiency
  • 99,900 BTU (minimum)
    999,000 BTU (maximum)
  • Indoor
  • Warranty
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Experience the next level in hydronic heating with the RCB•Series™ Wall-Hung and Floor-Standing Boilers from Rinnai, offering superior thermal efficiency and intelligent, user-friendly controls. Choose from multiple models, including wall-hung (RCB301AN, RCB399AN) and floor-standing (RCB500AN, RCB750AN, RCB1000AN) options to fit your space and capacity requirements. Each boiler features a 10:1 turndown ratio, allowing precise adjustments to meet varying demand. Built with a 316L stainless steel water tube heat exchanger for lasting durability. Get the quality you expect from Rinnai backed by a 10-Year (Non-Prorated) on the Heat Exchanger plus 1 year Parts and 1 Year Labor.

Supply Connections

Connection Connection Size
Gas 1-1/4" MNPT / (32 MM)
Cold Inlet 2" MNPT / (50 MM)
Hot Outlet 2" MNPT / (50 MM)
Condensate Drain 1" MNPT / (25mm) (3/4" PVC)
Product Depth 51.75 in / (1312 mm)
Product Height 44.5 in / (1127 mm)
Product Width 28.5 in / (723 mm)
Product Weight 567 lbs
Gas Type Natural Gas
Installation Type Indoor

Warranty information is available in the Installation & Owner Manual.

Browse product manuals, spec sheets, and other documentation below.

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800000828 Rinnai Commercial Boiler Floor Common Venting Installation Instructions-French
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800000242 Rinnai Commercial Boiler Floor Gas Conversion Manual
PDF 5 MB
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800000240 Rinnai Commercial Boiler Floor Installation and Operation Manual
PDF 24 MB
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800000241 Rinnai Commercial Boiler Floor User Manual
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800000260 Rinnai Commercial Boiler Floor Installation and Operation Manual-French
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800000262 Rinnai Commercial Boiler Floor User Manual-French
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Rinnai Commercial Boiler Canada English
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Rinnai Commercial Boiler French
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Rinnai Commercial Boiler US English
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800000238 Rinnai Commercial Boiler Floor Specification Sheet-English
PDF 2 MB
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800000243 Rinnai Commercial Boiler Floor Engineering Specification-English
PDF 606 KB
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800000272 Rinnai Commercial Boiler Floor Specification Sheet-French
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800000273 Rinnai Commercial Boiler Floor Specification Sheet-Spanish
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800000274 Rinnai Commercial Boiler Floor Engineering Specification-French
PDF 647 KB
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800000275 Rinnai Commercial Boiler Floor Engineering Specification-Spanish
PDF 688 KB
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TB-073 Condensing Termination Rain Ingress
PDF 92 KB
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TB-079 Rinnai Ubbink Venting
PDF 1 MB
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TB-080 Termination Diverter Kit
PDF 47 KB
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800000267 Rinnai Commercial Boiler Floor CSD-1 Form-English
PDF 3 MB
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800000280 Rinnai Commercial Boiler Floor CSD-1 Form-French
PDF 1 MB
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800000281 Rinnai Commercial Boiler Floor CSD-1 Form-Spanish
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800000237 Rinnai Commercial Boiler Floor Submittal Form-English
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800000270 Rinnai Commercial Boiler Floor Submittal Form-French
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800000271 Rinnai Commercial Boiler Floor Submittal Form-Spanish
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800000175 Warranty_Rinnai Commercial Boiler-English
PDF 254 KB
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800000268 Warranty_Rinnai Commercial Boiler-French
PDF 316 KB
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800000269 Warranty_Rinnai Commercial Boiler-Spanish
PDF 263 KB
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