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Napoleon S20 Wood Stove

Approx. Heating Area: 800 - 1,800 sq. ft.

Max Output: 65,000 BTU/h

Starting at $1999


The Napoleon S20 wood burning stove is considered to be a small wood stove with impressive heating capacity and burn time. With a 1.9 cu. ft. firebox capacity and up to 65,000 BTU output, this stove offers up to 8 hours of burn time. In addition to the heating capacity of the S20 wood stove, Napoleon designed the stove to offer a sleek look with hidden hinges and extra large glass for a pleasant viewing experience ever time you light it up. The S20 stove comes complete with contemporary cast door and pedestal base. Heavy duty 5/16" firebox top adds to the durability of the unit.


    • High-efficiency wood stove 2020 EPA approved
    • Recommended heating area : 800 - 1,800 square feet
    • Color: Black
    • Maximum log length : 16"
    • Overall firebox volume : 1.9
    • Non-catalytic combustion technology
    • Optimum efficiency : 72%
    • Emissions (grams/hour) : 2.25 g/h
    • Maximum burn time : 8 hours
    • Firebox lined with firebricks for better heat distribution
    • Stainless-steel secondary-air system improving gas combustion
    • Recommended chimney diameter : 6"

Specifications & Manual

Napoleon S20 Wood Stove Manual

Napoleon S20 Wood Stove Dimensions & Specs

Napoleon S20 Wood Stove Specifications
Depth - Overall 24 1/2"
Height - Overall 34 1/4"
Width - Overall 26"
Firebox dimensions (Depth) 24 1/2"
Firebox dimensions (Width) 26"
Type of Fuel Wood
Maximum log length 16"
Recommended Heating Area (sq. ft.) 800-1,800
Firebox volume (cu. ft.) 1.9
Type of Door Single, glass with steel frame
Glass Surface 15 5/8" x 9 3/4"
Glass Type Ceramic glass
Weight 270 lb
Recommended chimney diameter 6"
Minimum chimney height (feet) 15'
Minimum floor protection in front of unit 18" CAN/ 16" USA
Center line of flue outlet to the back 6 1/2"
Center line of flue outlet to the side 13"
Maximum output - seasoned cord wood 65,000 BTU/h
Steel thickness (top) 5/16"
Optimum efficiency 72%
Emissions (grams/hour) 2.25 g/h
Canadian Standard (emissions) CSA B415.1-10
USA standard (emissions) EPA
Canadian Standard (safety) ULC-S627
USA standard (safety) UL 1482
Warranty President Limited Lifetime Warranty

Minimum Clearances to Combustibles

Napoleon S20 Wood Stove Minimum Clearances to Combustibles*
Single Wall Stove Pipe Double Wall Stove Pipe
Clearance - back wall 11 1/2" US 9 1/2" US
Clearance - placed in a corner 11" US 7" US
Clearance - side wall 13" US 12" US
Clearance – top (measured from the platform on which the appliance is installed)** 84" US 84" US
Clearance - minimum floor protection in front of the fireplace 16" US / 18" CA 16" US / 18" CA
* The information given on the certification label affixed to the appliance always overrides the information published in any other media (owner's manual, catalogues, flyers, magazines and/or web sites).
** Some appliances have been tested with a low ceiling. Before setting up your unit, refer to the installation manual.

Optional Accessory Details

Blower Kit with Variable Speed and Thermostatic Control

The Napoleon variable speed blower with thermostatic control allows you to push more heat from the stove and cover more space in an efficient manner. The blower simply attaches to the back of the stove and plugs into a standard power outlet. The Blower Kit comes with a Thermostatic Control that will automatically shut off the blower once the stove has cooled down. The blower is a 120 CFM blower and is very quiet. You will not even know it is on when the blower is running.

Outside Air Kit (4" x 4' insulated flex pipe with through the wall vent)

The Outside Air Kit is used to provide your stove with extra combustion air for better functionality. The Outside Air Kit comes along with a 4' insulated flex pipe, the hood to prevent leaks and animal intrusion, and two clamps for the hood and the stove.

You may need the Outside Fresh Air Kit if:

  • The chimney has poor draft and the wood burns slowly
  • In the winter, there is too much condensation on the windows
  • When opening a window seems to alleviate the above symptoms
  • A ventilation system is installed in the house
  • Other devices are present that exhaust house air such as a kitchen range hood, nearby heating appliances, and bathroom exhaust fans
  • The house has a well sealed vapor barrier and or the home is sealed very tight

Restrictions for the Outside Fresh Air Kit:

  • Do not draw outside air from garage spaces
  • Do not exhaust products of gasoline engines are hazardous
  • Do not install outside air ducts such that the air may be drawn from attic spaces, basements, or above the roofing where other heating appliances or fans and chimneys exhaust or utilize air
  • Air must always be drawn from outside

Ash Disposal Kit

The Ash Disposal Kit makes cleaning the stove convenient. No need to have to shovel the ashes with an ash drawer. The Ash Disposal Kit conveniently slides in and out of the stove which contains the ashes while transporting to the final disposal location.

More Information
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