IP120S I-SERIES_Plus_S Model Series

I-SERIES Plus™ line of Solo Condensing Gas Boilers offers unmatched value and performance with an expanded product line that features Smart Sense ™ Adaptive Gas Valve technology. Solo Boiler CH 120k, NG

  • Indoor
  • Warranty
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I-SERIES Plus™ line of Solo Condensing Gas Boilers offers unmatched value and performance with an expanded product line that features Smart Sense ™ Adaptive Gas Valve technology. Solo Boiler CH 120k, NG

18.5 in. X 26.4 in. (470 mm x 670.56 mm x 292.1 mm)

Supply Connections

Connection Connection Size
Gas 3/4" MNPT / (19 mm)
Cold Inlet 3/4" MNPT / (19 mm)
Condensate Drain 1/2" NPT / (13 mm)
Product Depth 11.5 in / (292.1 mm)
Product Height 26.4 inch / (670.56 mm)
Product Width 18.5 inch / (470 mm)
Product Weight 112.4 lb / (50.9 kg)
Gas Type
  • Natural Gas
  • Propane Gas
Installation Type Indoor
Residential ENERGY STAR® Yes
Domestic Hot Water Flow Rate (Maximum) N/A
SCAQMD Approved Ultra Low NOx

Warranty information is available in the Installation & Owner Manual.

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

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800000291 PVC and CPVC Common Venting Installation Instructions for I-Series Plus Boilers-English
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800000194 I-Series Plus 150K BTU and Smaller Boiler Gas Conversion Manual
PDF 3 MB
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IP120S - Energy Guide
PDF 606 KB
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800000191 I-Series Plus 150K BTU and Smaller Solo Boiler Installation and Operation Manual
PDF 8 MB
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800000192 I-Series Plus 150K BTU and Smaller Boiler User Manual
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800000204 I-Series Plus 150K BTU and Smaller Boiler User Manual_French
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800000207 I-Series Plus 150K BTU and Smaller Solo Boiler Installation and Operation Manual_French
PDF 9 MB
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800000218 I-Series Plus 150K and 175K Boiler User Manual-ENGLISH
PDF 2 MB
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800000219 I-Series Plus Condensing Boiler User Manual-French
PDF 2 MB
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800000314 I-Series Plus 150K BTU and Smaller Solo Boiler Installation and Operation Manual-Spanish
PDF 13 MB
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800000315 I-Series Plus 150K and 175K Boiler User Manual-Spanish
PDF 3 MB
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800000375 Troubleshooting I-Series Plus Diagnostic Codes
PDF 8 MB
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800000376 Troubleshooting I-Series Plus Diagnostic Codes-French
PDF 9 MB
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800000377 Troubleshooting I-Series Plus Diagnostic Codes-Spanish
PDF 11 MB
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I-SERIES+™ Brochure - Canadian/ENG
PDF 11 MB
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I-SERIES+™ Brochure - French
PDF 11 MB
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US I-SERIES+® Brochure
PDF 11 MB
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800000139 I-Series Solo Boiler Plumbing Kit Spec Sheet
PDF 477 KB
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800000250(02) I-Series Plus 150K BTU and Smaller Solo Spec Sheet
PDF 1 MB
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800000278 I-Series Solo Boiler Plumbing Kit Spec Sheet-French
PDF 407 KB
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800000279 I-Series Solo Boiler Plumbing Kit Spec Sheet-Spanish
PDF 397 KB
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800000318 I-Series Plus 150K BTU and Smaller Solo Spec Sheet-French
PDF 1 MB
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800000319 I-Series Plus 150K BTU and Smaller Solo Spec Sheet-Spanish
PDF 1 MB
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Announcing IPEX System 1738 PVC Approval Technical Bulletins English
PDF 294 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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TB-200 I-Series Plus Boiler Manual Revisions for Termination Clearances and Maintenance Warning
PDF 511 KB
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800000196(01) I-Series Plus 150K BTU and Smaller Solo Boiler Tech Sheet
PDF 6 MB
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I-Series Plus 150K and 175K BTU Condensing Boiler Check Sheet English
PDF 2 MB
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