Hargassner GmbH ECO-HK 70 Multifuel
Hargassner GmbH ECO-HK 70 Multifuel is a non-catalytic hydronic heater from Hargassner GmbH certified at 1.7 g/hr particulate emissions with 87% HHV efficiency and a 35,228–250,794 BTU/h output range (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 | ECO-HK 70 Multifuel |
| Emission rate | 1.7 g/hr |
|---|---|
| Carbon monoxide | 0.09 g/min |
| Efficiency (HHV) | 87 % |
|---|
| Heat output (low) | 35228 BTU/h |
|---|---|
| Heat output (high) | 250794 BTU/h |
| 25C tax credit eligible (≥75% HHV) | Yes |
|---|---|
| 2020 NSPS compliant | Yes |
| Currently in production | No |
| EPA certification number | 26HH-20 |
What space does the Hargassner GmbH ECO-HK 70 Multifuel suit?
- Certified burning Wood Pellets .
Similar hydronic heaters
Frequently asked questions
Is the Hargassner GmbH ECO-HK 70 Multifuel EPA certified?
The Hargassner GmbH ECO-HK 70 Multifuel holds EPA certification number 26HH-20 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.
What is the Hargassner GmbH ECO-HK 70 Multifuel's emission rate?
The Hargassner GmbH ECO-HK 70 Multifuel is certified at 1.7 grams of particulates per hour (tested with wood pellets). Real-world emissions depend heavily on fuel moisture and operation — the lab figure assumes seasoned fuel and correct air settings.
Does the Hargassner GmbH ECO-HK 70 Multifuel 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 Hargassner GmbH ECO-HK 70 Multifuel's certified efficiency is 87% 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)