Upgrade your home’s heating system with the Rinnai I-Series 150,000 BTU Combi Condensing Gas Boiler – Natural Gas, a top-tier, high-efficiency solution engineered for superior comfort and performance. Designed for both residential and light commercial applications, this wall-mounted unit delivers exceptional heat output and hot water on demand — all with a sleek, compact design that saves valuable space.

With a 95% AFUE efficiency rating, advanced condensing technology, and user-friendly controls, the Rinnai I-Series ensures consistent comfort and cost savings. Whether you’re replacing an old boiler or installing new, this combi unit provides reliable, eco-friendly heating built to last.

Key Features:

• High Efficiency (95% AFUE): Maximizes heat output while minimizing energy costs.
• Compact Wall-Mounted Design: Saves space and simplifies installation.
• Combi Function: Provides both home heating and domestic hot water.
• User-Friendly Controls: Simple interface for easy adjustments and diagnostics.
• Indirect Tank Compatible: Flexible installation options for various needs.
• Durable Construction: Built with premium materials for long-lasting performance.
• Quiet Operation: Engineered for silent, smooth functionality.
• LP Conversion Kit Included: Easily switch from natural gas to propane if needed.
• 5.1 GPM Hot Water Flow Rate: Ensures reliable and continuous hot water supply.
• Service-Friendly Access: Designed for easy maintenance and inspection.
  

What’s Included

• Rinnai I-Series 150,000 BTU Combi Condensing Gas Boiler (Natural Gas)
• LP Conversion Kit
• User Manual & Installation Guide

  • (Primary/Secondary Heating Kit sold separately)

Specification

Care & Maintenance Instructions

• Schedule annual maintenance by a licensed HVAC technician.
• Regularly inspect venting and condensate lines for blockage or leaks.
• Flush system annually to remove sediment and maintain efficiency.
• Keep the intake/exhaust vents clear from debris or snow.
• Always use genuine Rinnai parts for repairs and replacements.
• Refer to the user manual for detailed maintenance procedures.