Travis Industries Liberty NexGen-Hybrid vs Woodstock Soapstone Company Progress Hybrid 209b
The Woodstock Soapstone Company Progress Hybrid 209b is the cleaner burner: 0.46 g/hr certified particulate emissions versus 0.9 g/hr. They tie on efficiency at 80% HHV. The Travis Industries Liberty NexGen-Hybrid produces more peak heat (47,138 vs 35,222 BTU/h), suiting roughly 1,350–1,900 sq ft. The Travis Industries Liberty NexGen-Hybrid has the larger firebox (4.14 vs 2.8 cu ft), which generally means longer burns between reloads. Combustion technology differs: the Travis Industries Liberty NexGen-Hybrid is a catalytic stove and the Woodstock Soapstone Company Progress Hybrid 209b a hybrid — see the catalytic vs non-catalytic guide for what that means day to day.
| Travis Industries Liberty NexGen-Hybrid | Woodstock Soapstone Company Progress Hybrid 209b | |
|---|---|---|
| Appliance type | wood-stove | wood-stove |
| Combustion technology | Catalytic Stove | Hybrid |
| Certified fuel | Crib Wood | Crib Wood |
| Emission rate | 0.9 g/hr | 0.46 g/hr |
| Efficiency (HHV) | 80 % | 80 % |
| Heat output (low) | 11598 BTU/h | 15257 BTU/h |
| Heat output (high) | 47138 BTU/h | 35222 BTU/h |
| Firebox volume | 4.14 cu ft | 2.8 cu ft |
| Carbon monoxide | 0.484 g/min | 0.07 g/min |
| 25C tax credit eligible (≥75% HHV) | Yes | Yes |
| 2020 NSPS compliant | Yes | Yes |
| Currently in production | Yes | Yes |
| EPA certification number | 381-24 | 406-25 |
| Covered model numbers | Liberty NexGen-Hybrid | Progress Hybrid 209b |
Frequently asked questions
Which burns cleaner, the Travis Industries Liberty NexGen-Hybrid or the Woodstock Soapstone Company Progress Hybrid 209b?
The Woodstock Soapstone Company Progress Hybrid 209b: 0.46 g/hr certified particulate emissions versus 0.9 g/hr for the Travis Industries Liberty NexGen-Hybrid.
Are the Travis Industries Liberty NexGen-Hybrid and Woodstock Soapstone Company Progress Hybrid 209b 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.