Hearth and Home Technologies Quadra-Fire 21M-ACC-C vs Jotul North America (Jotul U.S.A., Inc.) C550 V2
The Jotul North America (Jotul U.S.A., Inc.) C550 V2 is the cleaner burner: 1.1 g/hr certified particulate emissions versus 1.7 g/hr. The Jotul North America (Jotul U.S.A., Inc.) C550 V2 is the more efficient unit: 77% versus 76% HHV — more heat from every cord. The Jotul North America (Jotul U.S.A., Inc.) C550 V2 produces more peak heat (36,214 vs 29,322 BTU/h), suiting roughly 1,050–1,450 sq ft. The Jotul North America (Jotul U.S.A., Inc.) C550 V2 has the larger firebox (1.9 vs 1.48 cu ft), which generally means longer burns between reloads. Combustion technology differs: the Hearth and Home Technologies Quadra-Fire 21M-ACC-C is a non-catalytic stove and the Jotul North America (Jotul U.S.A., Inc.) C550 V2 a catalytic stove — see the catalytic vs non-catalytic guide for what that means day to day.
| Hearth and Home Technologies Quadra-Fire 21M-ACC-C | Jotul North America (Jotul U.S.A., Inc.) C550 V2 | |
|---|---|---|
| Appliance type | wood-stove | wood-stove |
| Combustion technology | Non-Catalytic Stove | Catalytic Stove |
| Certified fuel | Crib Wood | Crib Wood |
| Emission rate | 1.7 g/hr | 1.1 g/hr |
| Efficiency (HHV) | 76 % | 77 % |
| Heat output (low) | 13585 BTU/h | 11757 BTU/h |
| Heat output (high) | 29322 BTU/h | 36214 BTU/h |
| Firebox volume | 1.48 cu ft | 1.9 cu ft |
| Carbon monoxide | 1.5 g/min | 0.3 g/min |
| 25C tax credit eligible (≥75% HHV) | Yes | Yes |
| 2020 NSPS compliant | Yes | Yes |
| Currently in production | Yes | Yes |
| EPA certification number | 250-20 | 394-25 |
| Covered model numbers | Quadra-Fire 21M-ACC-C, Discovery-1-C, FF-WP-100 | C550 V2 |
Frequently asked questions
Which burns cleaner, the Hearth and Home Technologies Quadra-Fire 21M-ACC-C or the Jotul North America (Jotul U.S.A., Inc.) C550 V2?
The Jotul North America (Jotul U.S.A., Inc.) C550 V2: 1.1 g/hr certified particulate emissions versus 1.7 g/hr for the Hearth and Home Technologies Quadra-Fire 21M-ACC-C.
Are the Hearth and Home Technologies Quadra-Fire 21M-ACC-C and Jotul North America (Jotul U.S.A., Inc.) C550 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.