Hearthstone Quality Home Heating Products Green Mountain 80 8680 vs Jotul North America (Jotul U.S.A., Inc.) F445 V2
The Jotul North America (Jotul U.S.A., Inc.) F445 V2 is the cleaner burner: 0.65 g/hr certified particulate emissions versus 0.67 g/hr. The Hearthstone Quality Home Heating Products Green Mountain 80 8680 is the more efficient unit: 81% versus 77% HHV — more heat from every cord. The Jotul North America (Jotul U.S.A., Inc.) F445 V2 produces more peak heat (36,986 vs 33,396 BTU/h), suiting roughly 1,050–1,500 sq ft. The Hearthstone Quality Home Heating Products Green Mountain 80 8680 has the larger firebox (3.16 vs 2.03 cu ft), which generally means longer burns between reloads.
| Hearthstone Quality Home Heating Products Green Mountain 80 8680 | Jotul North America (Jotul U.S.A., Inc.) F445 V2 | |
|---|---|---|
| Appliance type | wood-stove | wood-stove |
| Combustion technology | Hybrid | Hybrid |
| Certified fuel | Crib Wood | Crib Wood |
| Emission rate | 0.67 g/hr | 0.65 g/hr |
| Efficiency (HHV) | 81 % | 77 % |
| Heat output (low) | 15069 BTU/h | 14323 BTU/h |
| Heat output (high) | 33396 BTU/h | 36986 BTU/h |
| Firebox volume | 3.16 cu ft | 2.03 cu ft |
| Carbon monoxide | 0.23 g/min | 0.17 g/min |
| 25C tax credit eligible (≥75% HHV) | Yes | Yes |
| 2020 NSPS compliant | Yes | Yes |
| Currently in production | Yes | Yes |
| EPA certification number | 162-18 | 414-26 |
| Covered model numbers | Green Mountain 80 8680 | F445 V2 |
Frequently asked questions
Which burns cleaner, the Hearthstone Quality Home Heating Products Green Mountain 80 8680 or the Jotul North America (Jotul U.S.A., Inc.) F445 V2?
The Jotul North America (Jotul U.S.A., Inc.) F445 V2: 0.65 g/hr certified particulate emissions versus 0.67 g/hr for the Hearthstone Quality Home Heating Products Green Mountain 80 8680.
Are the Hearthstone Quality Home Heating Products Green Mountain 80 8680 and Jotul North America (Jotul U.S.A., Inc.) F445 V2 both EPA certified?
Yes — both appear on the U.S. EPA's current list of certified wood heaters, and every figure on this page comes from their certification records.