Hearth and Home Technologies Quadra-Fire 21M-ACC-C 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 1.7 g/hr. The Hearth and Home Technologies Quadra-Fire 21M-ACC-C is the more efficient unit: 76% 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 29,322 BTU/h), suiting roughly 1,000–1,450 sq ft. The Jotul North America (Jotul U.S.A., Inc.) F445 has the larger firebox (2.03 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.) F445 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.) F445 | |
|---|---|---|
| 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 | 0.49 g/hr |
| Efficiency (HHV) | 76 % | 72 % |
| Heat output (low) | 13585 BTU/h | 13212 BTU/h |
| Heat output (high) | 29322 BTU/h | 35722 BTU/h |
| Firebox volume | 1.48 cu ft | 2.03 cu ft |
| Carbon monoxide | 1.5 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 | 250-20 | 361-24 |
| Covered model numbers | Quadra-Fire 21M-ACC-C, Discovery-1-C, FF-WP-100 | F445 |
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.) F445?
The Jotul North America (Jotul U.S.A., Inc.) F445: 0.49 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.) 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.