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Buck Stove Model 21 Review: Compact Non-Catalytic Wood Stove
The Buck Stove Model 21 is a compact non-catalytic wood stove that packs serious heating performance into a smaller footprint. Rated to heat 800 to 1,800 square feet, it is ideal for medium-sized homes, cabins, and rooms where a full-size stove would be overkill.
Buck Stove has been manufacturing wood stoves in the USA for decades, and the Model 21 is one of their most popular mid-range units. Here is everything you need to know before buying.
Key Specifications
| Specification | Value |
|---|---|
| Heat Output | Up to 41,200 BTU/hr (EPA tested) |
| Heating Capacity | 800 - 1,800 sq. ft. |
| Efficiency | 77% (EPA rated) |
| Emissions | 4.4 grams/hour |
| Firebox Volume | 1.6 cubic feet |
| Log Length | 18" side-to-side, 11" front-to-back |
| Flue Size | 6 inches |
| Weight | 342 lbs |
| Dimensions | 22" W x 18.125" D x 20.25" H |
| Colors | Black, Gold, Pewter |
What We Like About the Buck Stove Model 21
High Efficiency in a Compact Package
At 77% EPA efficiency, the Model 21 is actually more efficient than its larger sibling, the Model 74 (73%). This means more of the energy in your firewood becomes usable heat and less goes up the chimney. For homeowners watching fuel costs, that efficiency difference adds up over a heating season.
Blower Included
Unlike many competitors that charge extra for a blower kit, the Model 21 comes with a blower included. This circulates heated air into the room rather than relying on radiant heat alone, making the stove more effective at heating adjacent rooms and open layouts.
Non-Catalytic Design
The Model 21 uses a non-catalytic combustion system, which means no expensive catalytic combustor to replace every 2-3 years. Operation is straightforward: load wood, light, and adjust the single air control. There is no combustor bypass damper to manage.
Versatile Approvals
The Model 21 is approved for both prefabricated fireplace and mobile home installation. The minimum fireplace opening required is just 21" H x 23.25" W x 15" D, making it compatible with a wide range of existing fireplaces.
Compact Size
At 22" wide and just over 20" tall, the Model 21 fits in spaces where larger stoves cannot. If you are replacing an older, smaller stove or have a tight fireplace opening, the Model 21 is worth measuring for.
Things to Consider
Smaller Firebox
The 1.6 cubic foot firebox and 18-inch maximum log length mean more frequent reloading compared to larger stoves. If you need long overnight burns, the Model 74 (2.5 cu ft firebox, 22" logs) or Model 81 may be a better fit.
Accessories Sold Separately
The pedestal, optional trim kit, and Queen Anne stove legs are not included. Budget an additional 00-00 for accessories. We carry the full line of Buck Stove accessories including close clearance shields, trim kits, and decorative legs.
Emissions Rating
At 4.4 grams per hour, the Model 21 meets current EPA standards but is higher than the Model 74 (1.8 g/hr) and Model 81 (1.3 g/hr). If you are in an area with strict air quality regulations, check local requirements.
Buck Stove Model 21 vs. Model 74
| Feature | Model 21 | Model 74 |
|---|---|---|
| Max BTU | 41,200 | 52,400 |
| Heating Capacity | 800 - 1,800 sq ft | 1,500 - 2,600 sq ft |
| Efficiency | 77% | 73% |
| Firebox | 1.6 cu ft | 2.5 cu ft |
| Weight | 342 lbs | 460 lbs |
| Price (Black) | ,410 | ,330 |
Bottom line: The Model 21 is the better choice for spaces under 1,800 sq ft, tighter fireplace openings, and budget-conscious buyers. The Model 74 is worth the upgrade if you need to heat over 2,000 sq ft or want longer burn times.
Who Should Buy the Buck Stove Model 21?
- Homeowners heating 800-1,800 sq. ft. who want reliable wood heat
- Anyone replacing an older, compact wood stove or fireplace insert
- Mobile home owners who need an approved heating appliance
- Budget-conscious buyers who want Buck Stove quality at a lower price point
- Homeowners with smaller fireplace openings (21" H x 23.25" W minimum)
Pricing and Availability
The Buck Stove Model 21 starts at ,410 in Black and ,798 in Gold or Pewter. Free shipping on orders over 9.
Shop the Buck Stove Model 21 Non-Catalytic Wood Stove
Need help choosing between Buck Stove models? Contact us — we carry the full line of Buck Stove products and replacement parts and can help you find the right stove for your space.
Buck Stove Model 91 — The Flagship Catalytic Wood Stove
62,745 BTU heats up to 3,200 sq ft. Catalytic converter, factory-installed blower, oversized glass door with air wash, ash removal tray. Made in Spruce Pine, NC.
$4,451 (Black) · $4,797 (Gold/Pewter) · Free shipping
- Tags: buck stove, compact, heating, model 21, non-catalytic, wood stove review
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