Hearthstone Quality Home Heating Products Green Mountain 80 8680 vs Travis Industries Rockport NexGen-Hybrid
The Hearthstone Quality Home Heating Products Green Mountain 80 8680 is the cleaner burner: 0.67 g/hr certified particulate emissions versus 0.73 g/hr. The Hearthstone Quality Home Heating Products Green Mountain 80 8680 is the more efficient unit: 81% versus 80% HHV — more heat from every cord. The Travis Industries Rockport NexGen-Hybrid produces more peak heat (42,722 vs 33,396 BTU/h), suiting roughly 1,200–1,700 sq ft. The Hearthstone Quality Home Heating Products Green Mountain 80 8680 has the larger firebox (3.16 vs 2.04 cu ft), which generally means longer burns between reloads. Combustion technology differs: the Hearthstone Quality Home Heating Products Green Mountain 80 8680 is a hybrid and the Travis Industries Rockport NexGen-Hybrid 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 8680 | Travis Industries Rockport NexGen-Hybrid | |
|---|---|---|
| Appliance type | wood-stove | wood-stove |
| Combustion technology | Hybrid | Catalytic Stove |
| Certified fuel | Crib Wood | Crib Wood |
| Emission rate | 0.67 g/hr | 0.73 g/hr |
| Efficiency (HHV) | 81 % | 80 % |
| Heat output (low) | 15069 BTU/h | 12594 BTU/h |
| Heat output (high) | 33396 BTU/h | 42722 BTU/h |
| Firebox volume | 3.16 cu ft | 2.04 cu ft |
| Carbon monoxide | 0.23 g/min | 0.493 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 | 362-24 |
| Covered model numbers | Green Mountain 80 8680 | Rockport NexGen-Hybrid |
Frequently asked questions
Which burns cleaner, the Hearthstone Quality Home Heating Products Green Mountain 80 8680 or the Travis Industries Rockport NexGen-Hybrid?
The Hearthstone Quality Home Heating Products Green Mountain 80 8680: 0.67 g/hr certified particulate emissions versus 0.73 g/hr for the Travis Industries Rockport NexGen-Hybrid.
Are the Hearthstone Quality Home Heating Products Green Mountain 80 8680 and Travis Industries Rockport NexGen-Hybrid 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.