FPI/Regency Fireplace Products CI2700-1 vs Hearthstone Quality Home Heating Products Green Mountain 60 8660
The Hearthstone Quality Home Heating Products Green Mountain 60 8660 is the cleaner burner: 0.6 g/hr certified particulate emissions versus 1.1 g/hr. The Hearthstone Quality Home Heating Products Green Mountain 60 8660 is the more efficient unit: 79% versus 77% HHV — more heat from every cord. The Hearthstone Quality Home Heating Products Green Mountain 60 8660 produces more peak heat (33,576 vs 27,168 BTU/h), suiting roughly 950–1,350 sq ft. The Hearthstone Quality Home Heating Products Green Mountain 60 8660 has the larger firebox (2.03 vs 1.83 cu ft), which generally means longer burns between reloads. Combustion technology differs: the FPI/Regency Fireplace Products CI2700-1 is a catalytic stove and the Hearthstone Quality Home Heating Products Green Mountain 60 8660 a hybrid — see the catalytic vs non-catalytic guide for what that means day to day.
| FPI/Regency Fireplace Products CI2700-1 | Hearthstone Quality Home Heating Products Green Mountain 60 8660 | |
|---|---|---|
| Appliance type | wood-stove | wood-stove |
| Combustion technology | Catalytic Stove | Hybrid |
| Certified fuel | Crib Wood | Crib Wood |
| Emission rate | 1.1 g/hr | 0.6 g/hr |
| Efficiency (HHV) | 77 % | 79 % |
| Heat output (low) | 14291 BTU/h | 12608 BTU/h |
| Heat output (high) | 27168 BTU/h | 33576 BTU/h |
| Firebox volume | 1.83 cu ft | 2.03 cu ft |
| Carbon monoxide | 0.5 g/min | 0.49 g/min |
| 25C tax credit eligible (≥75% HHV) | Yes | Yes |
| 2020 NSPS compliant | Yes | Yes |
| Currently in production | Yes | Yes |
| EPA certification number | 359-23 | 121-18 |
| Covered model numbers | CI2700-1, HI500-1 | Green Mountain 60 8660, Hipster 20 AMB8260, Shelburne 8372 |
Frequently asked questions
Which burns cleaner, the FPI/Regency Fireplace Products CI2700-1 or the Hearthstone Quality Home Heating Products Green Mountain 60 8660?
The Hearthstone Quality Home Heating Products Green Mountain 60 8660: 0.6 g/hr certified particulate emissions versus 1.1 g/hr for the FPI/Regency Fireplace Products CI2700-1.
Are the FPI/Regency Fireplace Products CI2700-1 and Hearthstone Quality Home Heating Products Green Mountain 60 8660 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.