202 Palladian, 204 Keystone
Previously certified
EPA lists 202 Palladian, 204 Keystone under Woodstock Soapstone Company, Inc. as a previously certified catalytic wood stove.
The listed emission rate is 0.85 grams per hour.
The listed HHV efficiency is 80 percent.
Source: EPA Certified Wood Heater Database, snapshot 2026-10-23.
EPA rows
| Field | Row 1 |
|---|---|
| Status | Previously certified |
| Type | Wood Stove |
| Subtype | Catalytic Stove |
| Emission | 0.85 grams per hour |
| HHV efficiency | 80 percent |
| Heat output | 9,989–46,437 BTU/hr |
| Firebox | 1.4 cu ft |
| CO | 0.34 g/min |
| Certified fuel | Cord 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.
- 202 Palladian
- 204 Keystone
Other model lines from this manufacturer
- 212N Navajo Hybrid Wood-Coal, 212S Survival Hybrid Wood-Coal Currently certified
- Absolute Steel Hybrid 211 Currently certified
- Fireview Soapstone Stove 205b Currently certified
- Ideal Steel Hybrid 210b Currently certified
- Progress Hybrid 209b Currently certified
- 205 Fireview Catalytic Previously certified
- 209a Progress Hybrid Previously certified
- 210 Ideal Steel Hybrid Previously certified
- 210a Ideal Steel Hybrid Previously certified
- Catalytic Fireview Soapstone Stove #201, Classic #200 Previously certified
- Catalytic Fireview Soapstone Stove #205 Previously certified
- Ideal Steel Hybrid 210 Previously certified
- Paladian Model 202, Keystone Model 204 Previously certified
- Progress Hybrid Soapstone Stove #209 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
- F5200 — 0.84 grams per hour
- Optima PS1 — 0.87 grams per hour
- US2500E, AW2520E, VG2520, CH25, NM1190, SW2.5, AHWS2520, US2500E-P, US2500E-L, US2500E-BP, US2500E-BL, AW2520E-P, AW2520E-L, AW2520E-BP, AW2520E-BL, VG2520-P, VG2520-L, VG2520-BP, VG2520-BL — 0.88 grams per hour
- 30.2 Series: Sirocco 30.2 (SC30.2), Ashford 30.2 (AF30.2), and Chinook 30.2 (CK30.2) — 0.81 grams per hour
- 210a Ideal Steel Hybrid — 0.89 grams per hour
HHV efficiency
- 2.3H Series: Archway 2300 H, FW2900 H, Gateway 2300 H, Green Mountain Insert 70 (8451), Escape 1800 H, Inspire 2000 H, Inspire 2000-I H, Matrix H, Escape 1800-I H, Osburn 2000 H, Osburn 2000-I H, Harmony 2.3 H, Solution 2.3 H, Solution 2.3-I H, CW2900 H, Destination 2.3 H, Destination 2.3-I H, Matrix-I H, HES240 H, HEI240H, Heritage H, Deco Alto H, Blue Ridge 300P H, Blue Ridge 300L H, Blue Ridge 00-I H, Origin 2000 H, Origin 2000-I H, Evasion 2.3 H, Evasion 2.3-I H — 80 percent
- 20.2 Series: Ashford 20.2 (AF20.2), Chinook 20.2 (CK20.2), Sirocco 20.2 (SC20.2) — 80 percent
- 2B Classic 2020 — 80 percent
- 2B Standard 2020 — 80 percent
- 36 Elite NexGen-Hybrid — 80 percent
Heat output
- NZ3000H, TZ3000H — 14,215–42,203 BTU/hr
- 21 (FS21/Elite) — 12,000–44,400 BTU/hr
- Vermont Castings Dauntless Flexburn Catalytic Model — 14,518–41,943 BTU/hr
- Fireplace Xtrordinair 44 Elite — 11,000–45,300 BTU/hr
- Shaker — 26,473–29,801 BTU/hr