Rinnai I-Series 120,000 BTU Solo Heat Only Condensing Gas Boiler (i120SN) – Natural Gas

Experience reliable, high-efficiency home heating with the Rinnai I-Series i120SN Solo Heat Only Condensing Gas Boiler. Designed for superior performance and energy savings, this advanced boiler delivers consistent comfort with an impressive 120,000 BTU heating capacity.

Built with Rinnai’s exclusive self-cleaning stainless-steel heat exchanger and a secondary flat plate heat exchanger, it ensures long-lasting efficiency and minimal maintenance. The compact wall-mounted design frees up valuable space while maintaining powerful whole-home heating performance.

Perfect for homeowners who value performance, energy savings, and reliability, the Rinnai I-Series i120SN is one of the most efficient condensing boilers available, achieving one of the highest AFUE ratings in the industry.

Key Features:

• High-Efficiency Heating: 120,000 BTU (35.2 kW) heating capacity for consistent, even warmth.
• Condensing Technology: Maximizes fuel efficiency and reduces energy costs.
• Stainless-Steel Heat Exchanger: Self-cleaning design enhances durability and performance.
• Compact Wall-Mount Design: Saves space compared to traditional floor-standing boilers.
• Dual Heat Exchangers: Includes a secondary flat plate exchanger for improved energy recovery.
• ENERGY STAR® Certified: Meets the highest standards for energy efficiency.
• Ultra-Low NOx Emissions: Environmentally friendly and SCAQMD approved.
• Flexible Fuel Options: Compatible with both Natural Gas and Propane (LP).
  

What’s Included

• Rinnai I-Series i120SN Heat-Only Boiler Unit
• Wall Mounting Bracket
• User & Installation Manual
• Connection Hardware Kit
• Warranty Documentation
  

Specifications:

Care & Maintenance Instructions

• Annual Inspection: Have a certified technician inspect the boiler yearly for optimal efficiency.
• Clean Air Intake & Exhaust: Keep vents clear of obstructions such as dust, debris, or ice buildup.
• Monitor Water Pressure: Maintain proper pressure levels as indicated in the user manual.
• Flush System Periodically: Helps remove any sediment and ensures smooth operation.
• Check for Leaks: Regularly inspect all visible connections and fittings.