Windhager, North America, LLC/ Windhager Zentralheizung Technik GmbH BioWin 350

Windhager, North America, LLC/ Windhager Zentralheizung Technik GmbH BioWin 350 is a non-catalytic hydronic heater from Windhager, North America, LLC/ Windhager Zentralheizung Technik GmbH with 85% 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.

General
Appliance type hydronic-heater
Combustion technology Non-Catalytic Stove
Certified fuel Wood Pellets
Covered model numbers BioWin 350
Efficiency
Efficiency (HHV) 85 %
Heat output
Heat output (high) 119000 BTU/h
Certification
25C tax credit eligible (≥75% HHV) Yes
2020 NSPS compliant No
Currently in production No

What space does the Windhager, North America, LLC/ Windhager Zentralheizung Technik GmbH BioWin 350 suit?

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Frequently asked questions

Is the Windhager, North America, LLC/ Windhager Zentralheizung Technik GmbH BioWin 350 EPA certified?

The Windhager, North America, LLC/ Windhager Zentralheizung Technik GmbH BioWin 350 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 Windhager, North America, LLC/ Windhager Zentralheizung Technik GmbH BioWin 350 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 Windhager, North America, LLC/ Windhager Zentralheizung Technik GmbH BioWin 350's certified efficiency is 85% 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.

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