Hearth and Home Technologies Vermont Castings Intrepid FlexBurn 2115-CAT vs Woodstock Soapstone Company Absolute Steel Hybrid 211
The Hearth and Home Technologies Vermont Castings Intrepid FlexBurn 2115-CAT is the cleaner burner: 0.3 g/hr certified particulate emissions versus 0.5 g/hr. They tie on efficiency at 77% HHV. The Woodstock Soapstone Company Absolute Steel Hybrid 211 produces more peak heat (45,317 vs 15,906 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 1.31 cu ft), which generally means longer burns between reloads. Combustion technology differs: the Hearth and Home Technologies Vermont Castings Intrepid FlexBurn 2115-CAT is a 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 Vermont Castings Intrepid FlexBurn 2115-CAT | Woodstock Soapstone Company Absolute Steel Hybrid 211 | |
|---|---|---|
| Appliance type | wood-stove | wood-stove |
| Combustion technology | Catalytic Stove | Hybrid |
| Certified fuel | Crib Wood | Crib Wood |
| Emission rate | 0.3 g/hr | 0.5 g/hr |
| Efficiency (HHV) | 77 % | 77 % |
| Heat output (low) | 10665 BTU/h | 14426 BTU/h |
| Heat output (high) | 15906 BTU/h | 45317 BTU/h |
| Firebox volume | 1.31 cu ft | 2.43 cu ft |
| Carbon monoxide | 0.82 g/min | 0.04 g/min |
| 25C tax credit eligible (≥75% HHV) | Yes | Yes |
| 2020 NSPS compliant | Yes | Yes |
| Currently in production | Yes | Yes |
| EPA certification number | 115-18 | 33-16 |
| Covered model numbers | Vermont Castings Intrepid FlexBurn 2115-CAT | Absolute Steel Hybrid 211 |
Frequently asked questions
Which burns cleaner, the Hearth and Home Technologies Vermont Castings Intrepid FlexBurn 2115-CAT or the Woodstock Soapstone Company Absolute Steel Hybrid 211?
The Hearth and Home Technologies Vermont Castings Intrepid FlexBurn 2115-CAT: 0.3 g/hr certified particulate emissions versus 0.5 g/hr for the Woodstock Soapstone Company Absolute Steel Hybrid 211.
Are the Hearth and Home Technologies Vermont Castings Intrepid FlexBurn 2115-CAT 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.