21NC
Currently certified
EPA lists 21NC under New Buck Corporation (Buck Stove Corp.) as a currently certified non-catalytic wood stove.
The listed emission rate is 1.7 grams per hour.
The listed HHV efficiency is 70 percent.
Source: EPA Certified Wood Heater Database, snapshot 2026-10-23.
EPA rows
| Field | Row 1 |
|---|---|
| Status | Currently certified |
| Type | Wood Stove |
| Subtype | Non-Catalytic Stove |
| Emission | 1.7 grams per hour |
| HHV efficiency | 70 percent |
| Heat output | 11,079–28,901 BTU/hr |
| Firebox | 1.4 cu ft |
| CO | 6.1 g/min |
| Certified fuel | Crib Wood |
| Test method | Not listed |
| 2020 NSPS | Yes |
Retail names in the model line
These are the names split from EPA's model cell. They are aliases for this line, not separate listings.
- 21NC
Other model lines from this manufacturer
- 81C, Carolina 82C Currently certified
- Model 91, Carolina 92 Currently certified
- 18 Previously certified
- 20 Previously certified
- 21 (FS21/Elite) Previously certified
- 261 Previously certified
- 41BCV, BBay, CD, CS, CV, CBAY, PCV, PCBAY Previously certified
- 50PCV, 50PBay, 50CV, 50CBay, 50CD, 50BCV, 50BBay Previously certified
- 71 Freestanding/Insert Previously certified
- 81/85 Previously certified
- 94NC Previously certified
- Bay 91 Previously certified
- Buck Bay 91 Previously certified
- Buck Carolina/Tharington 51/T-51/C82 Previously certified
- Buck Master Previously certified
- Buck/Tharrington 74/T-74 Previously certified
- Little Buck 26000-C Previously certified
- Model 74 Previously certified
- Model 81 Previously certified
- Model 91 Previously certified
- New Buck/Carolina 17 Previously certified
- Regular Buck 27000-C Previously certified
- Townsend III Previously certified
- XL-80 Previously certified
Nearest model lines by EPA figures
Nearest means the smallest absolute difference on that EPA figure, among other Wood Stove model lines that list it. Ties are ordered by model name.
Emission
- 1.4R Series: Osburn 950 N, Escape 1200 N, Gateway 1400 N, Solution 1.4 N, Spark II N, Fox N, Deco Nano N, S250 N, HES140 N, Blue Ridge 100 N, SP1400 N, SL1400 N — 1.7 grams per hour
- 81C, Carolina 82C — 1.7 grams per hour
- Charnwood Skye E700 — 1.7 grams per hour
- E-1/90 — 1.7 grams per hour
- F1150, I1150, CI1150, HI1150 — 1.7 grams per hour
HHV efficiency
- 1.7 Series - Archway 1700, Gateway 1700, Columbia II, Savannah II, Deco II, HEI170, HES170, FW2800 — 70 percent
- 1.7 Series - Blackcomb II, Harmony 1.7, HEI170, HES170, Solution 1.7, Osburn 1700, Inspire 1700, Escape 1500, Escape 1500-I, Solution 1.7-I, Destination 1.7-I, Osburn 1700-I, Matrix 1700-I, Inspire 1700-I — 70 percent
- 15-SSW02,50-SHSSW02, and 50-TRSSW02 — 70 percent
- 30-H — 70 percent
- 32-NC, 50-SNC32, 50-TNC32 — 70 percent
Heat output
- 2100 ACC — 12,000–28,000 BTU/hr
- 333 — 12,000–28,000 BTU/hr
- F370 — 11,000–29,000 BTU/hr
- Morso 2B — 9,300–30,700 BTU/hr
- Vermont Castings Defiant 1610 — 10,000–30,000 BTU/hr
New Buck Corporation (Buck Stove Corp.) hub · EPA Certified Wood Heater Database