'/%3E%3C/svg%3E)
Hover image to zoom
M120CN M-Series 120,000 BTU Condensing Wall Mounted Combi Boiler (Natural Gas)
 --%3E %3Csvg version='1.1' id='No-RB' xmlns='http://www.w3.org/2000/svg' xmlns:xlink='http://www.w3.org/1999/xlink' x='0px' y='0px' viewBox='0 0 100 100' enable-background='new 0 0 100 100' xml:space='preserve'%3E %3Cpath fill='%23CECECE' d='M79.44,0.95H20.56C9.78,0.95,0.95,9.78,0.95,20.56v58.87c0,10.79,8.82,19.61,19.61,19.61h58.87 c10.79,0,19.61-8.83,19.61-19.61V20.56C99.05,9.78,90.22,0.95,79.44,0.95z M65.38,58.24l9.38,29.58L49.69,69.78L24.5,87.82 l9.34-29.6L8.8,39.6l30.73-0.17c0,0,6.98-19.61,10-28.93c0.54,1.36,9.88,29.1,9.88,29.1H91.2L65.38,58.24z'/%3E %3C/svg%3E){kind=small}
Hover image to zoom
' fill='%23F15C02' d='M49 0C21.938 0 0 21.938 0 49s21.938 49 49 49 49-21.938 49-49S76.062 0 49 0m0 82.709a7.54 7.54 0 1 1 0-15.08 7.54 7.54 0 0 1 0 15.08m7.54-28.412a7.541 7.541 0 0 1-15.08 0V22.831a7.54 7.54 0 0 1 15.08 0v31.466z'/%3E%3C/svg%3E)
M120CN has been discontinued
Discontinued April 6, 2022
This product was discontinued by the manufacturer.
MANUALS (4)
Schematic Feature!
Replacement Parts
Direct Replacement:
 --%3E %3Csvg version='1.1' id='Fill' xmlns='http://www.w3.org/2000/svg' xmlns:xlink='http://www.w3.org/1999/xlink' x='0px' y='0px' viewBox='0 0 100 100' enable-background='new 0 0 100 100' xml:space='preserve'%3E %3Cpath fill='%23F15C02' d='M79.44,0.95H20.56C9.78,0.95,0.95,9.78,0.95,20.56v58.87c0,10.79,8.82,19.61,19.61,19.61h58.87 c10.79,0,19.61-8.83,19.61-19.61V20.56C99.05,9.78,90.22,0.95,79.44,0.95z M65.38,58.24l9.38,29.58L49.69,69.78L24.5,87.82 l9.34-29.6L8.8,39.6l30.73-0.17c0,0,6.98-19.61,10-28.93c0.54,1.36,9.88,29.1,9.88,29.1H91.2L65.38,58.24z'/%3E %3C/svg%3E){kind=small}
Product Highlights
–
120000 Max BTUs
Natural Gas
Direct Vent
12 Year Heat Exchanger/2 Year Parts/1 Year Labor Warranty
Wall
12" Height
Description
–
Heating equipment must be installed, commissioned, and serviced by a licensed and qualified professional in accordance with manufacturer instructions, applicable codes, and industry standards. Manufacturers do not accept warranty or technical support requests from homeowners or unlicensed individuals. All warranty and technical inquiries must be initiated by the licensed professional responsible for the installation.
Note: Product Title reflects this boiler's Maximum Heating Input BTUs (MBH)
Includes:
Note: Product Title reflects this boiler's Maximum Heating Input BTUs (MBH)
Includes:
- LP Field Conversion Kit
- Flue Adapters
- Outdoor Reset Sensor
- 1" NPT Adaptors (2)
- Temperature Pressure Gauge
- Pressure Relief Valve (PRV)
- Modulating pump for consistent temperature control of water used in the heating system, efficient gas and less electrical consumption
- Integrated bypass to ensure proper flow to the heat exchanger
- More heat transfer for domestic hot water
Specs
–
| Fuel Type: | Natural Gas |
|---|---|
| BTU Output: | 120000 |
| BTU (Max): | 120000 |
| BTU (Min): | 23500 |
| Mount: | Wall |
| Height (Inches): | 12" |
| Installation Type: | Indoor Only |
| Flow Rate (GPM): | 8.5 |
| Vent Type: | Direct Vent |
| Features: | Condensing Combo DHW Wifi |
| Warranty: | 12 Year Heat Exchanger/2 Year Parts/1 Year Labor |
Questions?
Speak with a real person who will go out of the way to help!
Call or text 888-757-4774
Monday – Thursday
8am–7:45pm
Friday
9am–7:45pm
Saturday – Sunday
9am–5:45pm
Need help calculating?
Use Our CalculatorYou May Also Need
M120C NG
Replacement Parts
SKU: M120CN
Brand: Rinnai
Search Parts:
SEARCH PARTS
Need help finding a replacement part?
Fill out the part request form and someone will get back to you shortly.
PART REQUEST FORM