Free Shipping on Orders Over $200*
  • Rinnai Condensing Wall Mounted Boiler Natural Gas / Propane Gas - M120SN

    - 120000 BTU - Please Call 802-583-5500 for Pricing - Discount for Local Vermont Pick-up

    Product ID • M120SN000000

  • This Product is no longer available through It has either been discontinued, made obsolete, or is no longer available for sale. Please select another product. Please click here to see Replacement Product.


Rinnai Condensing Wall Mounted Boiler with Heat Only and 120,000 BTU in Natural Gas / Propane Gas andf 95% Efficiency - M120SN. (For Propane Gas comes with field conversion)

This Rinnai Condensing Boiler is a very high efficiency all Hung Boiler with an AFUE rating of 95%.  This Rinnai Residential Gas Boiler provides home owners with high efficiency that saves money on operating expenses, reduces overall installation costs and takes up less space than traditional space heating and water heating appliances. The M120SN has a built-in pump and comes with reset control system sensor.

The Rinnai Condensing Boiler M120SN reduces greenhouse gas emissions by utilizing a mesh burner that reduces nitrogen oxide and carbon monoxide production and meets all nationally recognized low NOx emission standards. Gas-Fired Solo Boiler.



Return Policy | Shipping Policy

Manuals & Docs

Technical Specs

Rinnai Wall Hung Combination Gas Boiler - M120SN Techs and Specs

  • Gas
    Natural Gas / Propane Gas
  • Nominal heat input
    120,000 Btu/hr
  • Minimum heat input NG
    23,500 Btu/hr
  • Minimum heat input LP
    73,500 Btu/hr
  • Efficiency
  • Nominal power supply voltage
    120/60 V/Hz
  • Electric Usage
    164 W
  • Stand-by Electric Usage
    3.5 W
  • Dimensions
    28 Inches L x 17 Inches W x 10 Inches D
  • Maximum heating pressure
    30 Psi
  • Weight Shipping
    81 Pounds
  • Weight Unit
    75 Pounds
  • * DOE Heating capacity is based on standard test specified by the United States

Rinnai Wall Hung Combination Gas Boiler - M120SN Features

  • Onboard outdoor reset control system with sensor standard
  • Modulating Ceramic premix burner
  • Spark ignition
  • Exceeds SCAQMD 1146.2 Low NOx requirements
  • Stainless Steel Water tube condensing heat exchanger
  • Direct Vent sealed combustion
  • Concentric and twin pipe venting adapters included
  • Approved for room and closet installations

Info & Links