Home / Compare brands / Blaze King vs Vermont Castings
Blaze King vs Vermont Castings stoves: EPA test data compared
EPA test data checked
Blaze King has 7 and Vermont Castings has 6 models certified for sale today. On the EPA's own tests, the typical Blaze King model burns cleaner, and the typical Blaze King model is more efficient.
| Blaze King | Vermont Castings | |
|---|---|---|
| Models certified for sale now | 7 | 6 |
| Fuel | wood | wood |
| Catalytic models | 7 | 4 |
| Top heat output, smallest to biggest | 24,085 to 38,516 BTU/hr | 15,906 to 37,102 BTU/hr |
| Typical efficiency (middle model) | 80% | 76% |
| Typical smoke, as a share of the legal limit | 50% | 60% |
| Cleanest-burning model | Princess PE32 | Vermont Castings Intrepid FlexBurn 2115-CAT |
| Most efficient model | 30.2 Series | Vermont Castings Defiant 1975-CAT-C |
| Biggest heater | King KE40 | Vermont Castings Encore 2040-CAT-C |
Closest head-to-head matchups
Each Blaze King model paired with the Vermont Castings model nearest to it in top heat output, same fuel.
| Blaze King | Heat / efficiency / smoke | Vermont Castings | Heat / efficiency / smoke |
|---|---|---|---|
| 30.2 Series | 36,076 / 83% / 0.81 | Vermont Castings Encore 2040-CAT-C | 37,102 / 77% / 1.1 |
| King KE40 | 38,516 / 81% / 1.0 | Vermont Castings Encore 2040-CAT-C | 37,102 / 77% / 1.1 |
| Sentry S14 | 24,453 / 78% / 1.4 | Vermont Castings Defiant 1975-CAT-C | 25,471 / 78% / 1.3 |
| 25 Series | 24,085 / 79% / 0.74 | Vermont Castings Defiant 1975-CAT-C | 25,471 / 78% / 1.3 |
| Princess PE32 | 34,435 / 82% / 0.55 | Vermont Castings Encore 2040-CAT-C | 37,102 / 77% / 1.1 |
| Princess PI29 Insert | 30,194 / 80% / 1.0 | Vermont Castings Aspen C3 | 25,549 / 71% / 1.8 |
Heat in BTU an hour, smoke in grams an hour.
Every Blaze King model on the EPA list
- King KE40: wood, 38,516 BTU/hr, 81% efficient, 1.0 g/hr smoke
- 30.2 Series: wood, 36,076 BTU/hr, 83% efficient, 0.81 g/hr smoke
- Princess PE32: wood, 34,435 BTU/hr, 82% efficient, 0.55 g/hr smoke
- 20.2 Series: wood, 31,092 BTU/hr, 80% efficient, 1.05 g/hr smoke
- Princess PI29 Insert: wood, 30,194 BTU/hr, 80% efficient, 1.0 g/hr smoke
- Sentry S14: wood, 24,453 BTU/hr, 78% efficient, 1.4 g/hr smoke
- 25 Series: wood, 24,085 BTU/hr, 79% efficient, 0.74 g/hr smoke
Every Vermont Castings model on the EPA list
- Vermont Castings Encore 2040-CAT-C: wood, 37,102 BTU/hr, 77% efficient, 1.1 g/hr smoke
- Vermont Castings Aspen C3: wood, 25,549 BTU/hr, 71% efficient, 1.8 g/hr smoke
- Vermont Castings Defiant 1975-CAT-C: wood, 25,471 BTU/hr, 78% efficient, 1.3 g/hr smoke
- Vermont Castings by Forge and Flame Dauntless-C: wood, 21,356 BTU/hr, 75% efficient, 1.7 g/hr smoke
- Vermont Castings Intrepid FlexBurn 2115: wood, 18,502 BTU/hr, 74% efficient, 0.6 g/hr smoke
- Vermont Castings Intrepid FlexBurn 2115-CAT: wood, 15,906 BTU/hr, 77% efficient, 0.3 g/hr smoke
Quadra-Fire, Harman, Vermont Castings, PelPro and Heat & Glo are certified under Hearth & Home Technologies; we matched models by the brand in their name. This compares EPA lab results only. It says nothing about price, build quality, warranty or dealer support.
Source: EPA Certified Wood Heater Database, currently certified room heaters, checked Nov 1, 2026.