P4 Unit 8
Previously certified
EPA lists P4 Unit 8 under Fröling Heizkessel und Behälterbau Ges.m.b.H as a previously certified hydronic heater.
The listed emission rate is 0.04 pounds per million BTU.
The listed HHV efficiency is 88 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 | 0.04 pounds per million BTU |
| HHV efficiency | 88 percent |
| Heat output | 35,800 BTU/hr maximum |
| Heat output maximum | 35,800 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.
- P4 Unit 8
Other model lines from this manufacturer
- P4 Pellet 60 Currently certified
- PE1 Pellet 20 Currently certified
- PE1 Pellet 35 Currently certified
- S3 Turbo 30 Currently certified
- S3 Turbo 50 Currently certified
- FHG 20/30 Previously certified
- P4 Unit 100 Previously certified
- P4 Unit 15 Previously certified
- P4 Unit 20 Previously certified
- P4 Unit 32 Previously certified
- P4 Unit 38 Previously certified
- P4 Unit 48 Previously certified
- P4 Unit 60 Previously certified
- P4 Unit 80 Previously certified
- T4-130 Previously certified
- T4-150 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
- BioWIN 152 — 0.04 pounds per million BTU
- BioWIN 152 — 0.04 pounds per million BTU
- BioWIN 262 — 0.04 pounds per million BTU
- BioWIN 262 — 0.04 pounds per million BTU
- BioWIN 332 — 0.04 pounds per million BTU
HHV efficiency
- BioWin 102 — 88 percent
- CP 500 — 88 percent
- CP 850 — 88 percent
- ECO-HK 120 Multifuel — 88 percent
- G Series G10000 — 88 percent
Heat output
- BioWin 100 — 34,800 BTU/hr maximum
- BioWin 102 — 36,900 BTU/hr maximum
- PE1 Pellet 20 — 9,656–67,744 BTU/hr
- Pellematic 20 — 9,323–70,418 BTU/hr
- Pellematic Smart XS (Condensing Mode) — 20,357–64,851 BTU/hr
Fröling Heizkessel und Behälterbau Ges.m.b.H hub · EPA Certified Wood Heater Database