United States Stove Company 1660E

United States Stove Company 1660E is a non-catalytic forced-air furnace from United States Stove Company with 62% HHV efficiency and a 72,455–185,536 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.

General
Appliance type forced-air-furnace
Combustion technology Non-Catalytic Stove
Certified fuel Cord Wood
Covered model numbers 1660E, AF1660E, CF1660E, SF1660E, BK1660E, NM1660E, GE1660E, CH1660E, VG1660E, HC1660E, and HB1660E
Efficiency
Efficiency (HHV) 62 %
Heat output
Heat output (low) 72455 BTU/h
Heat output (high) 185536 BTU/h
Emissions
Carbon monoxide 0.2 g/min
Certification
25C tax credit eligible (≥75% HHV) No
2020 NSPS compliant No
Currently in production No

What space does the United States Stove Company 1660E suit?

Similar forced-air furnaces

Frequently asked questions

Is the United States Stove Company 1660E EPA certified?

The United States Stove Company 1660E 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 1660E 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 1660E's certified efficiency is 62% 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.

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