Fröling Heizkessel und Behälterbau Ges.m.b.H P4 Unit 48
Fröling Heizkessel und Behälterbau Ges.m.b.H P4 Unit 48 is a non-catalytic hydronic heater from Fröling Heizkessel und Behälterbau Ges.m.b.H with 86% HHV efficiency (previously certified, no longer in production).
Previously certified (out of production). This model appears in the EPA Certified Wood Heater Database but is no longer on the current certified list, which usually means it is no longer manufactured. The specifications below are its certified figures, kept for reference and for owners of installed units. Browse currently certified heaters for models sold new today.
| Appliance type | hydronic-heater |
|---|---|
| Combustion technology | Non-Catalytic Stove |
| Certified fuel | Wood Pellets |
| Covered model numbers | P4 Unit 48 |
| Efficiency (HHV) | 86 % |
|---|
| Heat output (high) | 164000 BTU/h |
|---|
| 25C tax credit eligible (≥75% HHV) | Yes |
|---|---|
| 2020 NSPS compliant | No |
| Currently in production | No |
What space does the Fröling Heizkessel und Behälterbau Ges.m.b.H P4 Unit 48 suit?
- Certified burning Wood Pellets .
Similar hydronic heaters
- Evoworld P50
- Central Boiler Inc.- WoodMaster Maxim M255P/M255PE (0.8 g/hr)
- Central Boiler Inc.- WoodMaster Classic Edge 550 (5 g/hr)
- NBE Production Kedel RTB 170 (1.76 g/hr)
- Wood Boiler USA Blaze HE (5.3 g/hr)
- Wood Boiler USA Blaze HE (2)
Frequently asked questions
Is the Fröling Heizkessel und Behälterbau Ges.m.b.H P4 Unit 48 EPA certified?
The Fröling Heizkessel und Behälterbau Ges.m.b.H P4 Unit 48 holds EPA certification number n/a but is no longer on the current certified list — it is previously certified, which usually means the model is out of production. Already-installed units are unaffected by that status in most jurisdictions.
Does the Fröling Heizkessel und Behälterbau Ges.m.b.H P4 Unit 48 qualify for a federal tax credit?
No — the federal 25C credit for biomass stoves was terminated for property placed in service after December 31, 2025. The Fröling Heizkessel und Behälterbau Ges.m.b.H P4 Unit 48's certified efficiency is 86% HHV, which met the credit's ≥75% HHV threshold while it existed. State and local incentive programs may still apply — check your state energy office and air district.
Sources
- cfpub.epa.gov (retrieved 2026-07-23)