The Rinnai M120CN Combination Boiler provides efficient whole-home heating and continuous hot water in one compact wall-mounted unit. Perfect for homes with up to three bathrooms, this ENERGY STAR® certified system features advanced condensing technology to reduce energy costs while ensuring powerful and consistent performance. Designed for easy retrofit installation, it’s an ideal upgrade for replacing older, less efficient boilers.

Key Features:

• Dual Function Heating: Provides both space heating (120,000 BTU) and domestic hot water (160,000 BTU) from a single, efficient unit.
• Compact Wall-Mounted Design: Saves valuable floor space while delivering robust performance for whole-home comfort.
• High Efficiency: ENERGY STAR® certified condensing system designed to reduce fuel usage and emissions.
• Consistent Hot Water Supply: Delivers up to 4.2 gallons per minute for continuous hot water to multiple fixtures.
• Smart Electronic Controls: Features an intelligent electronic/IPI control system for accurate temperature and energy management.
• Durable Construction: Built with premium materials and a sleek white finish that blends seamlessly into any mechanical space.
• Low NOx Emissions: Environmentally responsible design meets SCAQMD Low NOx requirements for cleaner operation.
• Easy Retrofit Installation: Compact size and vented configuration make it an ideal replacement for traditional boilers.

Specifications:

Care Instructions:

• Have the unit inspected annually by a qualified technician to ensure optimal performance.
• Keep the air intake and vent openings clean and unobstructed at all times.
• Check for leaks, unusual noises, or error codes regularly and contact a certified Rinnai technician for service if detected.
• Use only Rinnai-approved parts and accessories during maintenance or installation.
• Ensure adequate ventilation and follow local building codes during setup or retrofitting.

Video