8500 and SP8500
Previously certified
EPA lists 8500 and SP8500 under United States Stove Company as a previously certified forced-air furnace.
The listed emission rate is 0.53 pounds per million BTU.
The listed HHV efficiency is 48 percent.
Source: EPA Certified Wood Heater Database, snapshot 2026-10-23.
EPA rows
| Field | Row 1 |
|---|---|
| Status | Previously certified |
| Type | Forced Air Furnace |
| Subtype | Non-Catalytic Stove |
| Emission | 0.53 pounds per million BTU |
| HHV efficiency | 48 percent |
| Heat output | 9,001–47,014 BTU/hr |
| Heat output maximum | Not listed |
| Firebox | Not applicable |
| CO | 0.46 g/min |
| Certified fuel | Wood Pellets |
| Test method | Not listed |
| 2020 NSPS | No |
| Thermal storage | No |
Retail names in the model line
These are the names split from EPA's model cell. They are aliases for this line, not separate listings.
- 8500 and SP8500
Other model lines from this manufacturer
- 4840, KP500, AP5000, Comfort Glow WMPS7000, DuraHeat DHPS7000 Currently certified
- 5660, AP5660E, US5660, VG5660, SP566, 5660-W, AP5660-W, US5660-W, VG5660-W, 5660-KIT, AP5660-KIT, US5660-KIT, VG5660-KIT, CGPS1525 Currently certified
- 5710, AP5710, VG5710, 5501S, AP5501S, VG5501S, 5710-XH, and US513M Currently certified
- 5710E, AP5710E, VG5710E, 5501SE, AP5501SE, VG5501SE, 5710-XHE, US513ME, Breckwell SP600, Comfort Glow CGPS2050 Currently certified
- 5770, 5770i, VG5770, VG5770i, AP5770, AP5770i, DNMP577, DNMP577i, 5790, VG5790, AP5790, DNMP579, Comfort Glow CGPS2100, CGPS2200, DuraHeat DHPS2100, DuraHeat DHPS2200 Currently certified
- 5770E, AP5770E, VG5770E, US5770E, KP5770E, KP5770E-W, CGPS2100, DH3000, BHPS30 Currently certified
- 5780-E, AP5780-E, VG5780-E, SP5780-E, SP58-E Currently certified
- 5780, AP5780, VG5780, SP5780, and SP58 Currently certified
- 5790E, AP5790E, VG5790E, KP5790E, KP5790-W, US5790E, CGPS2200, DH4800, BHPS48 Currently certified
- 6041, 6041I, SP6000 Currently certified
- Breckwell and Golden Eagle: SP22E, SP22Ei, 5040E and 5040Ei Currently certified
- Breckwell Maverick SP22(i), Breckwell Sonora SP23(i), Breckwell Blazer Insert SP24(i), Breckwell SP2000(i), Breckwell AP2000(i), Breckwell SP2700, Breckwell SP4000, Breckwell SPC4000, Breckwell APC4000, Breckwell 5040(i) Currently certified
- Breckwell SP1000, Big E Currently certified
- Breckwell SP2047 (Traverse), GW7400, ARGO500 Currently certified
- Breckwell SP24E (Blazer), SP24iE (Blazer) Currently certified
- GW1949, AP77, SW1117 Currently certified
- KP5513, KP5513-P, KP5513-L, US5513, US5513-P, US5513-L, AP5613, AP5613-P, AP5613-L, VG5713, VG5713-P, VG5713-L, Little E (SP500), 5501S-XH, KP5513-W, US5513-W, AP5613-W, VG5713-W Currently certified
- KP5517, KP5517-P, KP5517-L,KP5517-W,US5517, US5517-P, US5517-L,US5517-W, AP5617, AP5617-P, AP5617-L,AP5617-W,VG5717, VG5717-P, VG5717-L,VG5717-W, SP33 Currently certified
- KP5522, KP5522-P, KP5522-L, KP5522-W, US5522, US5522-P, US5522-L, US5522-W, AP5622, AP5622-P, AP5622-L, AP5622-W, VG5722, VG5722-P, VG5722-L, VG5722-W, SP1100, SP1100-W, KP130-B Currently certified
- SP1000E, KP1000E, AP1000E, US1000E Currently certified
- TH-100, US500E, AW520E, VG520, SW500, CH500, KW500, CGWS750 Currently certified
- US1100E, US1100EC, VG1120, AW1120E, CH11, NM680, SW1.2, AHWS1120, US1100E-P, US1100E-L, US1100E-BP, US1100E-BL, AW1120E-P, AW1120E-L, 1120E-BP, AW1120E-BL, VG1120-P, VG1120-L, VG1120-BP, VG1120-BL, US1100EC-P, US1100EC-L, US1100EC-BP, US1100EC-BL, King KW1100E-L, CH11-L, KW12, DHWS 1500, CGWS1500 Currently certified
- US1261E, USLW900E Currently certified
- US1269E, USLW900, CGWS900 Currently certified
- US1520, HB1520, VG1520, WC1520, N35, C2235, SWF1035, SWF1035K, King KWF1520, Comfort Glow CGWF4000, DuraHeat DHWF4000 Currently certified
- US1800E, VG1820, AW1820E, CH18, NM690, SW1.8, AHWS1820, KW1820, Comfort Glow CGWI1800, DuraHeat DHWI1800 Currently certified
- US2000 Model Line: AW2020, AW2020-L, US2000-L, US2000-BL, US2000-BP, US2000-P, AW2020-P, AW2020-BP, AW2020-BL, KW2000-P, KW2000, KW2020, KW20, KW2000-L, CH20E, VG2020E-P, VG2020E-L, VG2020E-BP, VG2020E-BL, CGWS2000, US2000-WP, US2000-WL, AW2020-W, AW2020-WP, VG2020-W, VG2020E-W, KW2000-W, KW2020-W, SW2.0E, KWS2020, US2000-W Currently certified
- US2500E, AW2520E, VG2520, CH25, NM1190, SW2.5, AHWS2520, US2500E-P, US2500E-L, US2500E-BP, US2500E-BL, AW2520E-P, AW2520E-L, AW2520E-BP, AW2520E-BL, VG2520-P, VG2520-L, VG2520-BP, VG2520-BL, KW2500E-L, KW25, Comfort Glow CGWS2500, DuraHeat DHWS2500 Currently certified
- 1269E Previously certified
- 1330E, AF1330E, CF1330E, BK1330E, NM1330E, GE1330E, CH1330E, VG1330E, HC1330E, HB1330E, VG1301E, 1331E, AF1300E Previously certified
- 1400E, 1440E, AF1440E, CF1440E, BK1440E, NM1440E, GE1440E, CH1440E, VG1440E, HC1440E, HB1440E, VG1501E, 1551E, AF1500E Previously certified
- 1660E, AF1660E, CF1660E, SF1660E, BK1660E, NM1660E, GE1660E, CH1660E, VG1660E, HC1660E, and HB1660E Previously certified
- 1660EFE, AF1660EFE, CF1660EFE, NM1660EFE, VG1660EFE, HB1660EFE Previously certified
- 2000, SW2100, Breckwell SWC31, Ashley AC2000 Previously certified
- 2016E Previously certified
- 2400 Previously certified
- 2469E Previously certified
- 2500 ST Previously certified
- 2500, SW3100 Previously certified
- 3000 (AFS7500), SW4100 Previously certified
All model lines on the United States Stove Company hub. This page lists 40 of the other 90 lines.
Nearest model lines by EPA figures
Nearest means the smallest absolute difference on that EPA figure, among other Forced Air Furnace model lines that list it. Ties are ordered by model name.
Emission
- 1330E, AF1330E, CF1330E, BK1330E, NM1330E, GE1330E, CH1330E, VG1330E, HC1330E, HB1330E, VG1301E, 1331E, AF1300E — 0.51 pounds per million BTU
- 1660EFE, AF1660EFE, CF1660EFE, NM1660EFE, VG1660EFE, HB1660EFE — 0.59 pounds per million BTU
- Caddy Alterna II — 0.44 pounds per million BTU
- 7000 — 0.42 pounds per million BTU
- Caddy, Heatmax II, Tundra II — 0.65 pounds per million BTU
HHV efficiency
- Fire Chief FC1000E and Shelter SF1000E — 52 percent
- 1660EFE, AF1660EFE, CF1660EFE, NM1660EFE, VG1660EFE, HB1660EFE — 58 percent
- 1660E, AF1660E, CF1660E, SF1660E, BK1660E, NM1660E, GE1660E, CH1660E, VG1660E, HC1660E, and HB1660E — 62 percent
- 1330E, AF1330E, CF1330E, BK1330E, NM1330E, GE1330E, CH1330E, VG1330E, HC1330E, HB1330E, VG1301E, 1331E, AF1300E — 33 percent
- 1400E, 1440E, AF1440E, CF1440E, BK1440E, NM1440E, GE1440E, CH1440E, VG1440E, HC1440E, HB1440E, VG1501E, 1551E, AF1500E — 63 percent
Heat output
- SR-3.6 Series Heat Commander, Caddy Advanced, Caddy Advanced CR — 13,297–42,234 BTU/hr
- Fire Chief FC1000E and Shelter SF1000E — 20,776–34,536 BTU/hr
- Vapor Fire 100 (VF100) — 21,465–33,691 BTU/hr
- Caddy, Heatmax II, Tundra II — 12,635–44,857 BTU/hr
- Fire Chief FC1000 and Shelter SF1000 — 16,691–45,000 BTU/hr
United States Stove Company hub · EPA Certified Wood Heater Database