Hearthstone Quality Home Heating Products Green Mountain 80-1 (Model 8681) vs Jotul North America (Jotul U.S.A., Inc.) F445
The Jotul North America (Jotul U.S.A., Inc.) F445 is the cleaner burner: 0.49 g/hr certified particulate emissions versus 0.53 g/hr. The Hearthstone Quality Home Heating Products Green Mountain 80-1 (Model 8681) is the more efficient unit: 80% versus 72% HHV — more heat from every cord. The Jotul North America (Jotul U.S.A., Inc.) F445 produces more peak heat (35,722 vs 33,424 BTU/h), suiting roughly 1,000–1,450 sq ft. The Hearthstone Quality Home Heating Products Green Mountain 80-1 (Model 8681) has the larger firebox (3.16 vs 2.03 cu ft), which generally means longer burns between reloads. Combustion technology differs: the Hearthstone Quality Home Heating Products Green Mountain 80-1 (Model 8681) is a hybrid and the Jotul North America (Jotul U.S.A., Inc.) F445 a catalytic stove — see the catalytic vs non-catalytic guide for what that means day to day.
| Hearthstone Quality Home Heating Products Green Mountain 80-1 (Model 8681) | Jotul North America (Jotul U.S.A., Inc.) F445 | |
|---|---|---|
| Appliance type | wood-stove | wood-stove |
| Combustion technology | Hybrid | Catalytic Stove |
| Certified fuel | Crib Wood | Crib Wood |
| Emission rate | 0.53 g/hr | 0.49 g/hr |
| Efficiency (HHV) | 80 % | 72 % |
| Heat output (low) | 14846 BTU/h | 13212 BTU/h |
| Heat output (high) | 33424 BTU/h | 35722 BTU/h |
| Firebox volume | 3.16 cu ft | 2.03 cu ft |
| Carbon monoxide | 0.2 g/min | 0.6 g/min |
| 25C tax credit eligible (≥75% HHV) | Yes | No |
| 2020 NSPS compliant | Yes | Yes |
| Currently in production | Yes | Yes |
| EPA certification number | 390-25 | 361-24 |
| Covered model numbers | Green Mountain 80-1 (Model 8681), Okemo (Model 8380), Hipster 30 (Model 8280) | F445 |
Frequently asked questions
Which burns cleaner, the Hearthstone Quality Home Heating Products Green Mountain 80-1 (Model 8681) or the Jotul North America (Jotul U.S.A., Inc.) F445?
The Jotul North America (Jotul U.S.A., Inc.) F445: 0.49 g/hr certified particulate emissions versus 0.53 g/hr for the Hearthstone Quality Home Heating Products Green Mountain 80-1 (Model 8681).
Are the Hearthstone Quality Home Heating Products Green Mountain 80-1 (Model 8681) and Jotul North America (Jotul U.S.A., Inc.) F445 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.