Hearth and Home Technologies Quadra-Fire 43M-ACC-C vs Woodstock Soapstone Company Absolute Steel Hybrid 211
The Woodstock Soapstone Company Absolute Steel Hybrid 211 is the cleaner burner: 0.5 g/hr certified particulate emissions versus 1.6 g/hr. The Woodstock Soapstone Company Absolute Steel Hybrid 211 is the more efficient unit: 77% versus 74% HHV — more heat from every cord. The Woodstock Soapstone Company Absolute Steel Hybrid 211 produces more peak heat (45,317 vs 36,757 BTU/h), suiting roughly 1,300–1,800 sq ft. The Woodstock Soapstone Company Absolute Steel Hybrid 211 has the larger firebox (2.43 vs 2.26 cu ft), which generally means longer burns between reloads. Combustion technology differs: the Hearth and Home Technologies Quadra-Fire 43M-ACC-C is a non-catalytic stove and the Woodstock Soapstone Company Absolute Steel Hybrid 211 a hybrid — see the catalytic vs non-catalytic guide for what that means day to day.
| Hearth and Home Technologies Quadra-Fire 43M-ACC-C | Woodstock Soapstone Company Absolute Steel Hybrid 211 | |
|---|---|---|
| Appliance type | wood-stove | wood-stove |
| Combustion technology | Non-Catalytic Stove | Hybrid |
| Certified fuel | Crib Wood | Crib Wood |
| Emission rate | 1.6 g/hr | 0.5 g/hr |
| Efficiency (HHV) | 74 % | 77 % |
| Heat output (low) | 13239 BTU/h | 14426 BTU/h |
| Heat output (high) | 36757 BTU/h | 45317 BTU/h |
| Firebox volume | 2.26 cu ft | 2.43 cu ft |
| Carbon monoxide | 1.9 g/min | 0.04 g/min |
| 25C tax credit eligible (≥75% HHV) | No | Yes |
| 2020 NSPS compliant | Yes | Yes |
| Currently in production | Yes | Yes |
| EPA certification number | 247-20 | 33-16 |
| Covered model numbers | Quadra-Fire 43M-ACC-C, 43ST-ACC-C, Discovery-III-C, FF-WP-300 | Absolute Steel Hybrid 211 |
Frequently asked questions
Which burns cleaner, the Hearth and Home Technologies Quadra-Fire 43M-ACC-C or the Woodstock Soapstone Company Absolute Steel Hybrid 211?
The Woodstock Soapstone Company Absolute Steel Hybrid 211: 0.5 g/hr certified particulate emissions versus 1.6 g/hr for the Hearth and Home Technologies Quadra-Fire 43M-ACC-C.
Are the Hearth and Home Technologies Quadra-Fire 43M-ACC-C and Woodstock Soapstone Company Absolute Steel Hybrid 211 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.