Hearthstone Quality Home Heating Products Green Mountain 80 8680 vs Pacific Energy Fireplace Products Limited True North TN20 Series B
The Hearthstone Quality Home Heating Products Green Mountain 80 8680 is the cleaner burner: 0.67 g/hr certified particulate emissions versus 1.6 g/hr. The Hearthstone Quality Home Heating Products Green Mountain 80 8680 is the more efficient unit: 81% versus 73% HHV — more heat from every cord. The Hearthstone Quality Home Heating Products Green Mountain 80 8680 produces more peak heat (33,396 vs 29,208 BTU/h), suiting roughly 950–1,350 sq ft. The Hearthstone Quality Home Heating Products Green Mountain 80 8680 has the larger firebox (3.16 vs 1.996 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 Pacific Energy Fireplace Products Limited True North TN20 Series B a non-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 | Pacific Energy Fireplace Products Limited True North TN20 Series B | |
|---|---|---|
| Appliance type | wood-stove | wood-stove |
| Combustion technology | Hybrid | Non-Catalytic Stove |
| Certified fuel | Crib Wood | Crib Wood |
| Emission rate | 0.67 g/hr | 1.6 g/hr |
| Efficiency (HHV) | 81 % | 73 % |
| Heat output (low) | 15069 BTU/h | 13931 BTU/h |
| Heat output (high) | 33396 BTU/h | 29208 BTU/h |
| Firebox volume | 3.16 cu ft | 1.996 cu ft |
| Carbon monoxide | 0.23 g/min | 0.77 g/min |
| 25C tax credit eligible (≥75% HHV) | Yes | No |
| 2020 NSPS compliant | Yes | Yes |
| Currently in production | Yes | Yes |
| EPA certification number | 162-18 | 80-17 |
| Covered model numbers | Green Mountain 80 8680 | True North TN20 Series B, TN Insert Series B |
Frequently asked questions
Which burns cleaner, the Hearthstone Quality Home Heating Products Green Mountain 80 8680 or the Pacific Energy Fireplace Products Limited True North TN20 Series B?
The Hearthstone Quality Home Heating Products Green Mountain 80 8680: 0.67 g/hr certified particulate emissions versus 1.6 g/hr for the Pacific Energy Fireplace Products Limited True North TN20 Series B.
Are the Hearthstone Quality Home Heating Products Green Mountain 80 8680 and Pacific Energy Fireplace Products Limited True North TN20 Series B 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.