Wittus
EPA lists 1 currently certified model line and 3 previously certified model lines for Wittus.
The lowest listed emission rate among those currently certified lines is 1.8 grams per hour, on Shaker.
Source: EPA Certified Wood Heater Database, snapshot 2026-10-23.
Both EPA manufacturer strings contain Wittus.
Evidence used for this hub: EPA manufacturer strings contain Wittus.
EPA manufacturer strings: Wittus (Fire By Design); Wittus Inc..
Currently certified
| Model line | EPA manufacturer | Status | Emission (g/hr) | HHV efficiency | Heat output | Firebox | Fuel |
|---|---|---|---|---|---|---|---|
| Shaker | Wittus Inc. | Currently certified | 1.8 | 76% | 18,218–21,399 BTU/hr | 1.46 cu ft | Crib Wood |
Previously certified
| Model line | EPA manufacturer | Status | Emission (g/hr) | HHV efficiency | Heat output | Firebox | Fuel |
|---|---|---|---|---|---|---|---|
| XEOOS Twinfire Series, Basic, Classic, Elegance, Pur | Wittus (Fire By Design) | Previously certified | 2.4 | Not listed | 11,500–27,400 BTU/hr | Not listed | Crib Wood |
| Shaker | Wittus (Fire By Design) | Previously certified | 3.9 | 63% | 26,473–29,801 BTU/hr | Not listed | Crib Wood |
| Shaker Stove | Wittus (Fire By Design) | Previously certified | 7.3 | Not listed | 9,700–29,200 BTU/hr | Not listed | Not listed |