P28
Previously certified
EPA lists P28 under Evoworld, Inc. as a previously certified hydronic heater.
The listed emission rate is 0.02 pounds per million BTU.
The listed HHV efficiency is 85 percent.
Source: EPA Certified Wood Heater Database, snapshot 2026-10-23.
EPA rows
| Field | Row 1 |
|---|---|
| Status | Previously certified |
| Type | Hydronic Heater |
| Subtype | Non-Catalytic Stove |
| Emission | 0.02 pounds per million BTU |
| HHV efficiency | 85 percent |
| Heat output | 94,200 BTU/hr maximum |
| Heat output maximum | 94,200 BTU/hr |
| Firebox | Not applicable |
| CO | Not listed |
| Certified fuel | Wood Pellets |
| Test method | Not listed |
| 2020 NSPS | No |
| Thermal storage | Yes |
Retail names in the model line
These are the names split from EPA's model cell. They are aliases for this line, not separate listings.
- P28
Other model lines from this manufacturer
- HP 14 Previously certified
- P 100 Previously certified
- P 200 Previously certified
- P50 Previously certified
Nearest model lines by EPA figures
Nearest means the smallest absolute difference on that EPA figure, among other Hydronic Heater model lines that list it. Ties are ordered by model name.
Emission
- Alpha-60 — 0.02 pounds per million BTU
- BioWin 100 — 0.02 pounds per million BTU
- BioWin 102 — 0.02 pounds per million BTU
- BioWin 150 — 0.02 pounds per million BTU
- BioWin 152 — 0.02 pounds per million BTU
HHV efficiency
- BioWin 350 — 85 percent
- BioWin 600 — 85 percent
- Komplett III LIGHT 20 KW — 85 percent
- Komplett III LIGHT 35 KW — 85 percent
- PE32 — 85 percent
Heat output
- BioWin 262 — 94,500 BTU/hr maximum
- GARN WHS-1000H, GARN WHS-1000V — 24,000–160,000 BTU/hr
- Classic Edge 560.1, CleanFire 500.1 — 24,564–171,956 BTU/hr
- PES 25-32 — 99,797 BTU/hr maximum
- Alpha-100 — 88,400 BTU/hr maximum