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Rinnai EX22CN

21,500 BTU Direct Vent, 81% Efficiency, Natural Gas Wall Furnace

(10 Reviews)


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Rinnai EX22CN (Item No. 615013) ON SALE! $1,251.99

When winter sets in, there are certain rooms that are used less because of cold spots. However, with the consistent and even heat provided by a Rinnai Direct Vent Wall Furnace, you can enjoy comfortable heat anywhere all winter long. Rinnai Wall Furnaces are efficient, easy to install, and the innovative cool-to-the-touch cabinet makes them safe for the whole family.

The Rinnai Direct Vent Wall Furnace’s reputation lies in its ability to extract up to 83% AFUE efficiency through the use of a unique stainless steel heat exchanger, modulating gas valve, and variable speed blower. Whether it’s a whole-house or zone-heating solution, the Rinnai Wall Furnace will provide a comfortable living environment, reduce energy consumption, and lower operating costs compared to a traditional furnace.

Standard Features

  • Modern cabinet design
  • User-friendly controls
  • Standby power of less than 1 watt
  • Programmable thermostat (Celsius or Fahrenheit) with timer function
  • Setback plus frost protection
  • Gas type field convertible
  • Auto restart
  • Quiet operation
  • Approved for use in high altitudes of up to 10,200 feet
  • "Cool-to-the-touch" cabinet
  • Sealed combustions - protects indoor air quality
  • Furnace automatically shuts down if vent is obstructed or blocked
  • Child safety lock
  • Electronic ignition - no pilot light
  • Wind tunnel tested venting system
  • On-board self-diagnostics for easier maintenance
  • Includes 4 1/2" - 9 1/2" vent kit FOT-151

Heating Capacity

The amount of heat, rated in BTUs that the item can produce.

Heating Capacity
21500 BTU
Effective Heating Capacity (BTUs)
Air Flow

The amount of air, rated in cubic feet per minute, that the unit can move.

Air Flow
162.7 CFM
Efficiency (% AFUE)

The percentage of energy converted into output by the unit. The remaining percentage is lost during the conversion process. The higher the efficiency, the lower the operational cost.

Efficiency (% AFUE)
81 %
Electrical Connection
Ignition Type
Direct Spark
Equipment Type
Wall Furnace
Exhaust Venting
Noise Level

The noise produced by the unit rated in decibels. 30dbs is equivalent to a whisper, 60dbs is equivalent to a normal conversation, 90 dbs is equivalent to a lawn mower.

Noise Level
33 - 42 Decibels
Product Weight
57 lbs
Meets CSA Standards

Canadian Standards Association

Meets CSA Standards
29 9/10 Inches
10 1/10 Inches
22 9/10 Inches
120 Volts
Heat Exchanger Warranty
10 Years