SKU:M120SN
Rinnai M-Series 32" 120K BTU Condensing Solo Natural Gas Boiler
Rinnai M-Series 32" 120K BTU Condensing Solo Natural Gas Boiler
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Rinnai M120SN residential condensing natural gas boiler is compact, wall mounted, and designed for easy installation as a retro-fit to traditional less efficient boilers and can deliver whole house heating.
Features
- Stainless steel primary boiler heat exchanger for unmatched performance and durability; Copper nickel integrated DHW plate heat exchanger
- Compact wall-mounted design saves space over traditional boilers
- Features an integrated modulating pump, and outdoor reset sensor (in the box)
- Flexible venting options with approved concentric, PVC, CPVC, stainless steel, polypropylene (rigid and flex), for single-pipe exhaust, room air and 2-pipe systems
- Cost-effective, simplified installation fewer components needed
Specifications
Manufacturer Trade Model Number |
M120SN |
Product Depth |
10.46 in / (266 mm)
|
Product Height |
31.8 in / (808 mm)
|
Product Width |
17.3 in / (440 mm)
|
Product Weight |
70 lb / (32 kg)
|
Gas Type | Natural Gas (or Propane with Field Conversion) |
Installation Type | Indoor |
Documents & Files
Warranty
Residential Warranty
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Heat Exchanger: 12 years or 12,000 operation hours, whichever occurs first |
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2 Year Warranty on Parts |
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1 Year Labor Warranty |
Commercial Warranty
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Heat Exchanger: 5 years |
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2 Year Warranty on Parts |
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1 Year Labor Warranty |
Installation
To connect with a Rinnai-trained installer, you can utilize the Rinnai Dealer Locator by visiting the link: https://www.rinnai.us/find-pro. Alternatively, you can directly reach out to Rinnai's dedicated customer support team via the Toll-Free Number: 1 (800) 621-9419.


What our customers are saying...
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Researched and ordered my fireplace from US FIreplace Store. Pricing was a fair value however, the customer service was EXCELLENT! I had an issue with the direct vent venting. I called US Fireplace and the correct items were sent out the next day AND Janessa stayed on top of my return authorization and sent me the permissions and documents I needed to return the incorrect item and no cost to me, including return shipping. Overall, I am a very satisfied customer and my fireplace looks and operates flawlessly. I am glad that I selected US FIreplace to source my direct vent fireplace. Thank you for the great service.
Clay
Monteagle, TN
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I had placed an order, through Lowe's Home Improvement, for an Electric Firebox: Revillusion RBF42. Ordered 1st part of January. Was told I would have it in 3 weeks. When checking to see is it came in, was told it was delayed to 3/15. Was then told is was delayed until 4/25. Waited until 4/27 to check on it. Was then told it was now delayed until August. This firebox was going in a new Sun Room addition. I could not get my final inspection until the Firebox was installed. I went on line and googled for this same product. US Fireplace Store web site was given to me. This was on a Saturday. I call and reached a very nice man. Explain what I was look for. He checked and told me they had 30 of them in stock. I almost fell out of my chair. I clarified with him the product I was wanting. I ask how soon could I get it. He told me it would ship today. Again, was amazed. It arrived on the following Monday. What a pleasure and a relief working with US Fireplace Store and their employees. Exceed my expectations.
Thomas W.
Fort Mill, SC
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Great prices, quick delivery and fast hassle free services on the issue I encountered. I had purchased an electric fireplace unit that would not fit into the existing fireplace space. With one email I was able to get the wrong fireplace refunded and picked up at my home at no extra cost and the new one I purchased and delivered free of charge. Great company.
John P.
Denvers, MA
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