Vermont Castings Defiant 1975-CAT-C
Currently certified
EPA lists Vermont Castings Defiant 1975-CAT-C under Hearth and Home Technologies as a currently certified catalytic wood stove.
The listed emission rate is 1.3 grams per hour.
The listed HHV efficiency is 78 percent.
Source: EPA Certified Wood Heater Database, snapshot 2026-10-23.
EPA rows
| Field | Row 1 |
|---|---|
| Status | Currently certified |
| Type | Wood Stove |
| Subtype | Catalytic Stove |
| Emission | 1.3 grams per hour |
| HHV efficiency | 78 percent |
| Heat output | 11,974–25,471 BTU/hr |
| Firebox | 3.25 cu ft |
| CO | 1.46 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.
- Vermont Castings Defiant 1975-CAT-C
Other model lines from this manufacturer
- Frontier II Currently certified
- Harman Absolute 43-C Currently certified
- Harman Absolute 63 Currently certified
- Harman Accentra 52i-TC Currently certified
- Harman Allure 50 Currently certified
- Harman P43-C Currently certified
- Harman P61-C Currently certified
- Harman P68-C Currently certified
- Harman XXV-TC Currently certified
- Heat & Glo Pioneer-II-ARC, Heat & Glo Pioneer-II-REC, Heat & Glo Northstar-D, Heatilator C40-D, Majestic, WarmMajic-D, Heatilator Pioneer-II-ARC, Majestic Pioneer-II-ARC, Heatilator Pioneer-II-REC, Majestic Pioneer-II-REC Currently certified
- P40i-C Currently certified
- P42i-TC Currently certified
- Pel-Pro PP60-B, Pleasant Hearth PH35PS-B, Quadra-Fire Outfitter-I Currently certified
- PelPro PP130-B, Quadra-Fire Outfitter II, PelPro PP150 Currently certified
- PelPro PP70 Currently certified
- PelPro PPC90, PelPro TSC90, Pleasant Hearth PHC90 Currently certified
- Quadra-Fire 21M-ACC-C, Discovery-1-C, FF-WP-100 Currently certified
- Quadra-Fire 31M-ACC-C, Quadra-Fire Discovery-II-C, Quadra-Fire FF-WP-200 Currently certified
- Quadra-Fire 43M-ACC-C, 43ST-ACC-C, Discovery-III-C, FF-WP-300 Currently certified
- Quadra-Fire 57ST-ACC-C Currently certified
- Quadra-Fire Classic Bay 1200-C Currently certified
- Quadra-fire Classic Bay 1200i-C Currently certified
- Quadra-Fire Expedition I, Vermont Castings Gifford-CB, Vermont Castings Gifford-BM Currently certified
- Quadra-Fire Expedition II, Vermont Castings Montpelier II Currently certified
- Quadra-Fire Pioneer III-ARC & Quadra-Fire – Pioneer III -REC Wood Heater Model Line, Models: Heat & Glo Pioneer-III-ARC, Heat & Glo Pioneer-III-REC, Heatilator Pioneer-III-ARC, Heatilator Pioneer-III-REC, Majestic Pioneer-III-ARC, Majestic Pioneer-III-REC Currently certified
- Quadra-Fire Santa Fe-C, Quadra-Fire Santa Fe I-C, Quadra-Fire Castile-C, Quadra-Fire Castile I-C Currently certified
- Quadra-Fire TREKKER-MBK, TREKKER-PMH, TREKKER-TWL TREKKERI-MBK, TREKKERI-PMH, TREKKERI-TWL (formerly the Quadra Fire Mount Vernon E2-C, Quadra Fire Mount Vernon E2-C Insert) Currently certified
- Vermont Castings Aspen C3 Currently certified
- Vermont Castings by Forge and Flame Dauntless-C Currently certified
- Vermont Castings Encore 2040-CAT-C Currently certified
- Vermont Castings Intrepid FlexBurn 2115 Currently certified
- Vermont Castings Intrepid FlexBurn 2115-CAT Currently certified
- 2100 ACC Previously certified
- 2590 Previously certified
- 333 Previously certified
- 400 Previously certified
- 4100I ACC Previously certified
- 5100I ACC Previously certified
- 5700 ACT/ Step Top Previously certified
- Absolute 43 Previously certified
All model lines on the Hearth and Home Technologies hub. This page lists 40 of the other 127 lines.
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
- 1.7 Series - Archway 1700, Gateway 1700, Columbia II, Savannah II, Deco II, HEI170, HES170, FW2800 — 1.3 grams per hour
- 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 — 1.3 grams per hour
- 36 Elite — 1.3 grams per hour
- Ashford 20.1, Chinook 20.1, Sirocco 20.1 — 1.3 grams per hour
- Chinook Sirocco Ashford 20 — 1.3 grams per hour
HHV efficiency
- 205 Fireview Catalytic — 78 percent
- 209a Progress Hybrid — 78 percent
- Alterra Pro I3000 Series (I300R, I300A) — 78 percent
- F 500 V3 — 78 percent
- F1500, I1500 — 78 percent
Heat output
- Defender — 9,200–28,300 BTU/hr
- Defender (Vogelzang) — 9,200–28,300 BTU/hr
- Spirit 550, Limit 450 and Classic 450, Spirit 500 — 11,400–26,100 BTU/hr
- SunRise P-48-H, P-48-L — 11,700–25,800 BTU/hr
- TR 001 — 9,200–28,300 BTU/hr
Hearth and Home Technologies hub · EPA Certified Wood Heater Database