United States Stove Company 7700
United States Stove Company 7700 is a non-catalytic forced-air furnace from United States Stove Company with 74% HHV efficiency and a 20,330–61,900 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 | forced-air-furnace |
|---|---|
| Combustion technology | Non-Catalytic Stove |
| Certified fuel | Crib Wood |
| Covered model numbers | 7700 |
| Efficiency (HHV) | 74 % |
|---|
| Heat output (low) | 20330 BTU/h |
|---|---|
| Heat output (high) | 61900 BTU/h |
| 25C tax credit eligible (≥75% HHV) | No |
|---|---|
| 2020 NSPS compliant | No |
| Currently in production | No |
What space does the United States Stove Company 7700 suit?
- Certified burning Crib Wood .
Similar forced-air furnaces
Frequently asked questions
Is the United States Stove Company 7700 EPA certified?
The United States Stove Company 7700 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 United States Stove Company 7700 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 United States Stove Company 7700's certified efficiency is 74% HHV, which did not meet 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)