In May of 2015, the Environmental Protection Agency began to require efficiency testing for stoves. Those tested and certified before then do not have to disclose their efficiency until they are required to conduct new tests – while will be at least a couple of years.
Many stove manufacturers post efficiency numbers based on non-standardized calculations. This means the information posted on the company website might not be entirely accurate.
The wood and pellet stoves found in the chart below have been tested by accredited laboratories for efficiency in order to find honest data for consumers. Keep in mind that the efficiency of wood stoves is partly based on the operator, while lab-tested pellet stove efficiency results should be considered reliable.
| Manufacturer Name |
Model Name | Emission Rate G/Hr |
Actual Efficiency |
Type |
| American Energy Sys. | Baby Country S |
1 | 73 | Pellet |
| American Energy Sys. | 3500, 01 & 02 |
1 | 67 | Pellet |
| American Energy Sys. | Little Rascal |
1.1 | 71 | Pellet |
| APR IndustriesAPR Industries | Bay WinPrevia | 0.561 | 7876 | PelletPellet |
| Arada Stoves | Farringdon 12 |
2.8 | 71 | Non Cat |
| Ardisam | Serenity Castle |
1.1 | 77 | Pellet |
| Blaze King Industries | KEJ 1107 |
1.8 | 82 | Cat |
| Blaze King Industries | Princess PEJ |
2.4 | 81 | Cat |
| Blaze King Industries | Princess 35 |
2.1 | 81 | Cat |
| Blaze King Industries | Ashford 30.1 Chinook |
0.8 | 80 | Cat |
| Blaze King Industries | Princess Insert |
2 | 80 | Cat |
| Blaze King Industries | Chin. Sir. Ashford 20 |
1.3 | 77 | Cat |
| Blaze King Industries | Chin. Sir. Ashford 30 |
0.97 | 75 | Cat |
| Blaze King Industries | Sirocco SC25, Ash AF25 |
0.9 | 77 | Cat |
| Blaze King Industries | Ashford 20.1 Chinook |
1.3 | 77 | Cat |
| Blaze King Industries | Briarwood II/90 |
3.5 | 71 | Non Cat |
| Boru Stove Company | Carraig Mor |
3.9 | 73 | Non Cat |
| England’s Stove Works | 25-SSP01 | 0.56 | 79 | Pellet |
| England’s Stove Works | 15-SSW02 | 3.5 | 70 | Non Cat |
| Even Temp (St. Croix) | Hastings | 1.1 | 66 | Pellet |
| Even Temp (St. Croix) | Ashby-P | 1 | 66 | Pellet |
| Even Temp, (St. Croix) | Prescott EXP EXL |
0.53 | 70 | Pellet |
| Extraflame | V5.2 | 0.59 | 87 | Pellet |
| Extraflame | V4.5 | 0.93 | 82 | Pellet |
| Extraflame | V3.4 | 1.1 | 85 | Pellet |
| Foyers Supreme | Fusion FN |
4.4 | 64 | Non Cat |
| Hearth & Home Tech. | PPC90, TSC90 |
1.1 | 82 | Pellet |
| Hearth & Home Tech. | Absolute 63 |
1.4 | 78 | Pellet |
| Hearth & Home Tech. | XXV-TC | 1.7 | 72 | Pellet |
| Hearth & Home Tech. | Allure 50 |
1.5 | 75 | Pellet |
| Hearth & Home Tech. | Adventure III |
2.9 | 70 | Non Cat |
| Hearth & Home Tech. | Mt. Vernon AE |
1.7 | 71 | Pellet |
| Hearth & Home Tech. | Accentra-2 | 0.62 | 71 | Pellet |
| Hearth & Home Tech. | Advance | 1.8 | 67 | Pellet |
| Heat Tech | HTP 26 Bay |
0.54 | 70 | Pellet |
| Heat Tech | HTP 26 Standard |
0.77 | 66 | Pellet |
| Industrial Chimney Co. | Delta Fusion |
1.3 | 60 | Non Cat |
| J.A. Roby | Plaris, Centauri, etc. |
1.4 | 76 | Non Cat |
| Jotul North America | Jotul F600 |
4.1 | 74 | Non Cat |
| Jotul North America | C350 | 4 | 74 | Non Cat |
| Jotul North America | F55 | 3.5 | 76 | Non Cat |
| Jotul North America | F118 CB |
3.5 | 75 | Non Cat |
| Jotul North America | F45 | 2.3 | 74 | Non Cat |
| Jotul North America | F500 | 3.2 | 74 | Non Cat |
| Jotul North America | F118 Black Bear |
3 | 73 | Non Cat |
| Jotul North America | C450, Tamarack |
4.4 | 73 | Non Cat |
| Jotul North America | F3CBII | 3.8 | 73 | Non Cat |
| Jotul North America | F602 CB |
3.4 | 71 | Non Cat |
| Jotul North America | F100 Nordic |
3 | 73 | Non Cat |
| Jotul North America | 50TL | 2.8 | 72 | Non Cat |
| Jotul North America | C550 CB |
4.5 | 71 | Non Cat |
| Jotul North America | Castine F400 |
3.8 | 68 | Non Cat |
| Jotul North America | F370 | 2.6 | 66 | Non Cat |
| Kuma Stove Inc. | Sequoia | 2.2 | 84 | Cat |
| Kuma Stove Inc. | Ashwood | 3.5 | 73 | Non Cat |
| Kuma Stove Inc. | Scott HT-1 |
3.5 | 73 | Non Cat |
| Kuma Stove Inc. | Wood Classic |
3.3 | 73 | Non Cat |
| Kuma Stove Inc. | Aspen | 4.1 | 72 | Non Cat |
| LMF Manufacturing | America’s Heat |
1.7 | 58 | Pellet |
| Ningbo Hongsheng | Comfortbilt HP5 |
2.5 | 81 | Pellet |
| Pacific Energy Fireplace | TN20 | 2.1 | 75 | Non Cat |
| Pacific Energy Fireplace | Neo 2.5, insert |
2.9 | 74 | Non Cat |
| Pacific Energy Fireplace | FP16 | 3.1 | 65 | Non Cat |
| Pacific Energy Fireplace | True North TN40 |
1.4 | 72 | Pellet |
| Pacific Energy Fireplace | Neo 1.2, Neostone 1.2 |
2.9 | 74 | Pellet |
| Pacific Energy Fireplace | Neostone 1.6 |
3.4 | 75 | Non Cat |
| Pacific Energy Fireplace | FP 25 |
3.5 | 67 | Non Cat |
| Pleasant Hearth, GHP | WS-2720-B | 4.5 | 66 | Non Cat |
| Quadrafire (HHT) | Explorer III |
2 | 69 | Non Cat |
| Ravelli | Roma | 0.74 | 76 | Pellet |
| Regency (FPI) | Regency 3500 |
1.1 | 81 | Cat |
| Regency (FPI) | C12600, HI400 |
1.8 | 80 | Cat |
| Regency (FPI) | F5100 | 1.5 | 79 | Cat |
| Seraph Industries | Genesis 108 |
2.1 | 78 | Pellet |
| Sherwood Industries | Enviro 1700l |
4.5 | 75 | Non Cat |
| Sherwood Industries | Enviro 1200, i |
3.4 | 72 | Non Cat |
| Sherwood Industries | EF2, Chatham |
1.8 | 58 | Pellet |
| SMG | HP21 | 1.3 | 79 | Pellet |
| SMG | HP61 | 1.2 | 83 | Pellet |
| Travis Industries | Insert Hybrid |
0.58 | 80 | Hybrid |
| Travis Industries | Cape Cod |
0.45 | 80 | Hybrid |
| Travis Industries | Rockport | 0.8 | 78 | Cat |
| Travis Industries | Small Flush |
0.89 | 76 | Hybrid |
| Travis Industries | Evergreen | 3.6 | 74 | Non Cat |
| Travis Industries | 42CVT Wood |
0.7 | 73 | Cat |
| Unforgetable Fire | Katydid | 1.9 | 73 | Non Cat |
| United States Stoves | VG150 | 2.8 | 74 | Non Cat |
| US Stove Company | 2016E | 3.7 | 67 | Non Cat |
| US Stove Company | 5710, AP5710 |
1 | 69 | Pellet |
| US Stove Company | 1269E | 4.2 | 68 | Non Cat |
| US Stove Company | 5660E, AP5660 |
1.9 | 62 | Pellet |
| Wiseway Pellet Stove | GW1949 | 1.9 | 69 | Pellet |
| Wolf Steel | NZ3000H | 3.3 | 63 | Cat |
| Woodstock Soapstone | Absolute Steel |
0.5 | 77 | Hybrid |
| Woodstock Soapstone | Ideal Steel |
1 | 82 | Hybrid |
| Woodstock Soapstone | Progress Hybrid |
1.3 | 81 | Hybrid |
The Alliance for Green Heat obtained actual efficiencies from the EPA on four other stoves through a Freedom of Information Act:
- Harman Accentra 51i: 76%
- Quadrafire Mt. Vernon E2: 75%
- Ravelli 100: 70%
- Ravelli 80: 56%
Check out the Alliance for Green Heat blog to learn more!
