
M120SN Comparison
| photo | price | summary | rating |
|---|---|---|---|
![]() | $28.49 | Condition is Open box, Rinnai 807000024 E/M/Q-Series Boiler Chrome De-Aerator E50 E60 E75 E85 E110 Q130, FREE SHIPPING | 99.9% |

The Rinnai M120SN Condensing Gas Boiler is a high-performance, energy-efficient solution for your home's hot water needs. This boiler is part of Rinnai's Infini series, known for their advanced technology and reliable performance.
The M120SN is a condensing boiler, which means it is designed to extract more heat from the fuel it uses, making it an excellent choice for those seeking to reduce their energy consumption and lower their carbon footprint. The boiler's compact design allows it to fit comfortably in most residential spaces, while its efficient operation ensures a steady supply of hot water for your home.
The boiler features a modulating gas valve, which adjusts the gas input to match the hot water demand, ensuring optimal efficiency and comfort. It also includes a built-in circulating pump, which helps to maintain a consistent temperature and even water distribution throughout your home.
The M120SN is equipped with Rinnai's patented Condensing Technology, which captures and utilizes the heat that would otherwise be lost during the combustion process. This technology not only increases the boiler's efficiency but also reduces the amount of greenhouse gases emitted during operation.
The boiler's exterior is constructed of high-quality stainless steel, which not only looks great but also provides excellent resistance to corrosion and rust. The M120SN also includes a number of safety features, such as an automatic low water cut-off, overheat protection, and a flame failure device.
The Rinnai M120SN Condensing Gas Boiler is a reliable, efficient, and eco-friendly choice for your home hot water needs. Its advanced technology, compact design, and safety features make it an excellent investment for any homeowner seeking to reduce their energy consumption and enjoy consistent, comforting hot water.
Rinnai M120SN Condensing Gas Boiler: A Detailed Analysis of Its Pros and Cons
The Rinnai M120SN is a condensing gas boiler known for its efficiency and compact design. In this analysis, we will discuss the key advantages and disadvantages of investing in this boiler model.
Pros:1. High Efficiency: The Rinnai M120SN achieves an impressive efficiency rating of up to 95%, which significantly reduces energy consumption and lowers your fuel bills.
2. Compact Design: This boiler's small footprint makes it an excellent choice for properties with limited space. With dimensions of 595 x 395 x 135 mm, it is compact and easy to install.
3. Constant Hot Water Supply: The M120SN provides a continuous supply of hot water, ensuring that you always have an ample supply for your household needs.
4. Low Emissions: This boiler complies with the latest NOx emissions regulations, making it an eco-friendly choice that reduces your carbon footprint.
5. Condensing Technology: The M120SN utilizes condensing technology, which extracts heat from the exhaust gases and uses it to preheat the water supply, further improving efficiency.
Cons:1. High Initial Cost: The Rinnai M120SN has a relatively high upfront cost compared to some other boiler models. However, the energy savings over time may offset this investment.
2. Limited Compatibility: The M120SN is only compatible with natural gas and LPG fuel sources. If you use an alternative fuel source, you may need to consider a different boiler model.
3. Complex Installation: Due to its unique design and features, the installation process for the Rinnai M120SN may be more complex than that of a traditional boiler, requiring the expertise of a qualified professional.
Conclusion:The Rinnai M120SN is an excellent choice for homeowners seeking a highly efficient, compact, and eco-friendly condensing gas boiler. Its advantages include impressive efficiency ratings, a small footprint, continuous hot water supply, and low emissions. However, it comes with a higher initial cost and limited fuel compatibility, as well as a more complex installation process.
Recommendation:If you are looking for a high-performance, compact condensing gas boiler and have the necessary budget, the Rinnai M120SN is a solid investment. Its efficiency and eco-friendly features make it an excellent long-term choice for reducing energy consumption and lowering fuel bills. However, be sure to consider the complex installation process and limited fuel compatibility before making your final decision. If these factors are deal-breakers for you, you may want to explore other boiler models that better suit your specific needs and circumstances.
Details:
specifications maxohvac:
- brand: Rinnai
- mpn: M120sn
payments maxohvac:
- other
- wallet: apple-pay
- credit card: mastercard
general maxohvac:
- category: Business & Industrial > Hvac Refrigeration
offer maxohvac:
- options: ship-to-home
- availability: in stock
- in stock #: 1
- sold #: 9
- price: $28.49
- item condition: Open box
- best offers: true
- started: january 21, 2026
returns maxohvac:
- policy: no returns
seller maxohvac:
- city: winsted, connecticut
- # reviews: 360
- rating: 100.0%
shipping maxohvac:
- type: calculated
- transit: 3-8 days
- class: standard
- service: fedex ground / fedex home delivery
- carrier: fedex
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