Pyrotec 390
Previously certified
EPA lists Pyrotec 390 under Viessmann Holzheiztechnik GmbH as a previously certified hydronic heater.
The listed emission rate is 0.04 pounds per million BTU.
The listed HHV efficiency is 86 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 | 86 percent |
| Heat output | 1,430,000 BTU/hr maximum |
| Heat output maximum | 1,430,000 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.
- Pyrotec 390
Other model lines from this manufacturer
- Pyrot 150 Previously certified
- Pyrot 540 Previously certified
- Pyrotec 530 Previously certified
- Pyrotec 720 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
- Alpha-100 — 86 percent
- Alpha-60 — 86 percent
- BioWin 150 — 86 percent
- BioWin 260 — 86 percent
- Central Boiler Classic Edge 960, WoodMaster CleanFire 900 — 86 percent
Heat output
- CP 1700 — 1,650,000 BTU/hr maximum
- Pyrot 540 — 1,700,000 BTU/hr maximum
- CP 1000 — 1,030,000 BTU/hr maximum
- Pyrotec 530 — 1,860,000 BTU/hr maximum
- CP 850 — 840,000 BTU/hr maximum
Viessmann Holzheiztechnik GmbH hub · EPA Certified Wood Heater Database