United States Stove Company US1520

United States Stove Company US1520 is a non-catalytic forced-air furnace from United States Stove Company with 70% HHV efficiency and a 15,997–53,042 BTU/h output range.

General
Appliance type forced-air-furnace
Combustion technology Non-Catalytic Stove
Certified fuel Cord Wood
Covered model numbers US1520, HB1520, VG1520, WC1520, N35, C2235, SWF1035, SWF1035K, King KWF1520, Comfort Glow CGWF4000, DuraHeat DHWF4000
Efficiency
Efficiency (HHV) 70 %
Heat output
Heat output (low) 15997 BTU/h
Heat output (high) 53042 BTU/h
Firebox volume 3.95 cu ft
Emissions
Carbon monoxide 4.6 g/min
Certification
25C tax credit eligible (≥75% HHV) No
2020 NSPS compliant Yes
Currently in production Yes
EPA certification number 24FAF-22

What space does the United States Stove Company US1520 suit?

Similar forced-air furnaces

Frequently asked questions

Is the United States Stove Company US1520 EPA certified?

Yes, the United States Stove Company US1520 is on the EPA's current list of certified wood heaters (certification number 24FAF-22) and meets the 2020 NSPS Step 2 emission limits.

Does the United States Stove Company US1520 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 US1520's certified efficiency is 70% 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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