Rinnai IP090199CN 90,000 BTU Condensing Combi Boiler
$2,594.87
The RINNAI IP090199CN is a dual-function hydronic combi condensing gas boiler designed to deliver both space heating and domestic hot water from a single unit. It produces 90 MBH of heating output and supplies up to 4.1 GPM of domestic hot water at a 70 degrees F temperature rise.
Product Description
The RINNAI IP090199CN is a dual-function hydronic combi condensing gas boiler designed to deliver both space heating and domestic hot water from a single unit. It produces 90 MBH of heating output and supplies up to 4.1 GPM of domestic hot water at a 70 degrees F temperature rise. A stainless steel heat exchanger and fully modulating burner work together to maximize fuel efficiency and maintain stable temperatures across both functions. Licensed HVAC technicians and plumbers install this unit in residential applications where space and equipment count are priorities.
The IP090199CN is built for residential hydronic heating systems that also require on-demand domestic hot water. Its integrated design eliminates the need for a separate water heater, reducing mechanical room footprint. The I-Series Plus platform supports flexible venting configurations, making it suitable for both new construction and retrofit installations where venting access may be limited. Built-in controls and freeze protection add operational reliability in seasonal or low-occupancy settings.
Key Features
- 90 MBH hydronic heating output for whole-home space heating
- 4.1 GPM domestic hot water delivery at 70 degrees F temperature rise
- Stainless steel heat exchanger for corrosion resistance and long service life
- Fully modulating burner reduces short-cycling and improves fuel efficiency
- Built-in freeze protection for added reliability in cold-climate installs
- Flexible venting options support a range of installation configurations
- Integrated controls simplify commissioning and diagnostics
Compatibility
Designed as an OEM-style unit for residential hydronic heating and domestic hot water systems requiring a single combi boiler solution.
Installation Notes
Installation must be performed by a licensed HVAC technician or plumber in accordance with local mechanical codes, the IFGC, and applicable plumbing codes. Shut off gas supply and isolate all hydronic and potable water connections before servicing. Follow the manufacturer venting guidelines for proper flue sizing and termination clearances. Do not operate the unit without verifying gas supply pressure and confirming all water connections are leak-free.
Technical Specifications
- Heating Output: 90 MBH
- Domestic Hot Water Flow Rate: 4.1 GPM
- DHW Temperature Rise: 70 degrees F
- Heat Exchanger Material: Stainless Steel
- Burner Type: Fully Modulating
- Boiler Type: Condensing Combi Gas Boiler
- Series: I-Series Plus
Standard Information
- Brand: RINNAI
- Manufacturer Part Number: IP090199CN


Delivery Times
Once your order ships, here's roughly what to expect:
Delivery times can vary based on your location and carrier conditions. Remote areas or weather delays may add a day or two.
Related products
Rinnai CHS19980HCXIN Demand Duo Hybrid Water Heating System 199,000 BTU, 80 Gallon
Rinnai CX160I SENSEI CX Series Commercial Indoor Tankless Water Heater 160,000 BTU/H without pump
Rinnai EX17DTN EnergySaver 16,700 BTU Direct Vent Wall Heater (Natural Gas)
Rinnai EX22DT 21500 BTU EnergySaver Direct Vent Wall Furnace
Rinnai IP090199C i-Series Plus 90,000 BTU Condensing Combi Boiler, 95% AFUE
The RINNAI ip090199c is a condensing gas combination boiler from the I-Series Plus line, designed for residential heating applications that require simultaneous space heating and domestic hot water delivery. Rated at 95% AFUE, this combi boiler delivers high efficiency performance across a wide output range from 90,000 to 199,000 BTU/h.
Rinnai IP199199C 199,000 BTU Condensing Wall Mounted Boiler (NG/LP)
Rinnai REHP50 residential electric heat pump water heater 4.5kW 208/240V 50 gallon
Rinnai RU160I SENSEI RU160iN super high efficiency plus condensing tankless water heater

You were not leaving your cart just like that, right?
Enter your details below to save your shopping cart for later. And, who knows, maybe we will even send you a sweet discount code :)
