True North TN20 Wood Burning Stove
EPA-Certified Catalytic-Free Heat with Big-Firebox Versatility
The True North TN20 wood stove delivers clean, high-efficiency catalytic-free heat for medium to large spaces — 10-gauge steel, a cast iron door, EPA 2020 certification, and a choice of legs or pedestal.
Key Features
- EPA 2020 Certified with low 1.6 g/hr emissions for clean, code-compliant burning
- Catalytic-free tube combustion — no catalyst to replace, lower lifetime cost
- 2.0 cu.ft. firebox sized for medium to large rooms and whole-zone heating
- Up to 29,200 BTU EPA-rated heat output, 55,000 BTU peak on cord wood
- 72.7% HHV efficiency for more heat from every log
- Legs or pedestal base in Metallic Black to suit your space
- Mobile home approved with inside and outside combustion air capability
Product Features
Catalytic-Free Tube Combustion System
The TN20 wood burning stove uses a durable secondary tube combustion system instead of a catalyst. This reignites unburned gases for cleaner emissions and steady, economical heat — with no expensive catalytic combustor to monitor or replace over the life of the stove.
Heavy-Duty 10-Gauge Steel Construction
Built from standard 10-gauge plate steel with a heavy plate-steel top and a gasketed cast iron door, this freestanding wood stove is engineered to withstand years of high-heat use while holding a tight seal for efficient, controlled burns.
Air Wash System for Clean Ceramic Glass
A built-in air wash directs combustion air across the ceramic glass, keeping it clear so you get a full, unobstructed view of the fire. The single-lever air control makes dialing in the right burn rate simple for any home's heating needs.
Legs or Pedestal Design Options
Unlike smaller models in the line, the TN20 wood stove is available with either Metallic Black legs or a pedestal base, giving you flexibility to match your hearth setup and aesthetic while keeping the same proven combustion performance.
Flexible Combustion Air & Mobile Home Approval
The TN20 is capable of drawing both inside and outside combustion air and is approved for mobile home installation when set up with a listed double-wall connector and outside air supply. An optional 80 cfm convection blower (sold separately) circulates more warm air into the room.
Product Specifications
Appliance Performance
| Specification |
Value |
| Fuel Type |
Dry cordwood (18" recommended) |
| Recommended Heating Area |
Medium to large spaces |
| Firebox Volume |
2.0 cu. ft. |
| Maximum Burn Time |
Up to 8 hours |
| Maximum Heat Output (Cord Wood) |
55,000 BTU/h (peak) |
| Heat Output Range (EPA HHV) |
13,900 – 29,200 BTU/h |
| Average Efficiency |
72.7% HHV / 78% LHV |
| Particulate Emissions |
1.6 g/h |
General Features
| Feature |
Specification |
| Combustion Technology |
Non-catalytic (tube combustion) |
| EPA Certification |
EPA 2020 certified |
| Maximum Log Length |
20" (18" recommended) |
| Log Orientation |
Parallel to door |
| Blower |
Optional – 80 CFM convection (kit #TRNO.19BLOWA / 31140001, not included) |
| Door Type |
Single door, cast iron frame |
| Glass Type |
Ceramic glass |
| Air-Wash System |
Yes |
| Firebox Lining |
Firebrick (20-piece set) |
| Secondary Air System |
Stainless steel baffle tubes |
| Construction |
10-gauge plate steel |
| Model Options |
Metallic Black legs or pedestal base |
| Warranty |
Limited Warranty |
Dimensions
| Measurement |
Size |
| Height |
28 3/4" |
| Width |
21 5/8" |
| Depth |
23 7/8" |
| Top Width (plate-steel top) |
26 1/4" |
| Glass Size |
9 1/4" × 13 1/4" |
Venting & Chimney Requirements
| Specification |
Requirement |
| Flue Outlet Diameter |
6" |
| Chimney Diameter |
6" |
| Approved Chimney Systems |
CAN/ULC S629, UL 103 HT |
| Connector |
Single-wall or listed double-wall |
| Outside Air Inlet |
4" diameter |
| Minimum System Height |
12 ft |
Certifications & Safety Standards
| Category |
Standard |
| Emissions (USA) |
EPA 2020 |
| Safety (USA) |
UL 1482 |
| Safety (Canada) |
CAN/ULC S627 |
| Listing |
ETL Listed (Intertek) |
| Mobile Home Approved |
Yes |
| Alcove Approved |
Yes (min. height 7 ft) |
Minimum Clearances to Combustibles*
Residential — Single-Wall Connector
| Location |
Canada |
USA |
| A — Side Wall to Unit |
8" |
8" |
| B — Back Wall to Unit |
12" |
12" |
| C — Corner to Unit |
8" |
8" |
| D — Side Wall to Connector |
19 1/2" |
19 1/2" |
| E — Back Wall to Connector |
15 1/4" |
15 1/4" |
| F — Corner to Connector |
16" |
16" |
Residential — Double-Wall Connector
| Location |
Canada |
USA |
| A — Side Wall to Unit |
8" |
8" |
| B — Back Wall to Unit |
5" |
5" |
| C — Corner to Unit |
3" (USA) |
3" |
| D — Side Wall to Connector |
15 1/2" |
15 1/2" |
| E — Back Wall to Connector |
8 1/4" |
8 1/4" |
| F — Corner to Connector |
11" |
11" |
Mobile Home — Double-Wall Connector (required)
| Location |
Measurement |
| Side Wall to Unit |
8" |
| Back Wall to Unit |
5" |
| Corner to Unit |
3" |
| Side Wall to Connector |
14" |
| Back Wall to Connector |
8 1/4" |
| Corner to Connector |
11 3/8" |
Ceiling & Floor Protection
| Specification |
Canada |
USA |
| Min. Clearance, Top of Stove to Ceiling |
57 3/4" |
57 3/4" |
| Floor Protector Min. Width |
37 5/8" |
28 3/4" |
| Floor Protector Min. Depth |
50" |
40" |
| Ember Protection (front of loading door) |
18" |
16" |
| Ember Protection (sides) |
8" |
8" |
*The certification label on the appliance supersedes all published dimensions. Always follow the installation manual.
Frequently Asked Questions
Is the True North TN20 EPA certified?
Yes. The TN20 is EPA 2020 certified with particulate emissions of just 1.6 g/hr, meeting current U.S. clean-air standards for wood heaters. It's also tested and listed to UL 1482 and CAN/ULC S627.
Does the TN20 use a catalytic combustor?
No. The TN20 wood stove uses a catalytic-free tube combustion system. There's no catalyst to clean, monitor, or eventually replace, which keeps long-term operating and maintenance costs low while still burning clean.
How large an area will the TN20 heat?
With a 2.0 cu.ft. firebox and up to 29,200 BTU EPA-rated output (55,000 BTU peak on cord wood), the TN20 is built for medium to large spaces. Actual coverage depends on insulation, climate, and home layout.
Can I choose between legs and a pedestal?
Yes. The TN20 is available with either Metallic Black legs or a pedestal base, so you can match your hearth setup without sacrificing combustion performance.
Can the True North TN20 be installed in a mobile home?
Yes. The TN20 is mobile-home approved when installed with a listed double-wall connector and an outside combustion air supply, and secured to the structure with the included hold-down brackets.
What size chimney and flue does the TN20 require?
The TN20 uses a 6-inch flue outlet and requires a 6-inch chimney system listed to UL 103 HT (USA) or CAN/ULC S629 (Canada), or a code-approved lined masonry chimney. Minimum system height is 12 feet measured from the top of the appliance.
How long will the TN20 burn on a single load?
Approximate burn times reach up to 8 hours, depending on draft, wood species, moisture content, and air-control setting. For longer burns, dry hardwood and unsplit logs are recommended.
Does the TN20 come with a blower?
A blower is optional and sold separately. The 80 CFM convection blower kit (part #TRNO.19BLOWA) can be added at any time to circulate more warm air into the room.
Is the TN20 hard to install?
As with any wood-burning appliance, installation should follow the manual and local codes. True North and NFI recommend installation by an NFI-certified professional.
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