
Firman H08051 vs Champion Power Equipment 201284
Firman H08051 vs Champion 201284: both 8000W dual-fuel workhorses, but Firman runs longer at 50% load (12 vs 10 hrs).
- Firman H08051
- Champion Power Equipment 201284
Comparison Overview
Runtime is the clearest real-world separator: the Firman H08051 is rated for 12 hours at 50% load, while the Champion Power Equipment 201284 is rated for 10 hours at 50% load. If you are planning overnight home backup or long work sessions, those extra hours can mean fewer refuels and less interruption.
Otherwise, these two are extremely close on the big-ticket specs. Both are dual-fuel, both deliver 8000 running watts and 10000 starting watts, and both are traditional (non-inverter) generators. Noise is also essentially a tie at 74 dB, which is loud enough that you will want distance from the house, considerate placement, and possibly a barrier.
Portability is similar too, with the Champion at 208 lb and the Firman at 212 lb. Both include a 3-year warranty, so the decision usually comes down to runtime preference, brand familiarity, and whichever is the better value at the time you buy.
Pick the Firman if longer run time matters most, pick the Champion if you prefer its brand ecosystem or find a better deal.
Key takeaways
- Both deliver 8000 running watts and 10000 starting watts for heavy loads.
- Firman H08051 runs 12 hours at 50% load, longer than Champion’s 10 hours.
- Both are dual-fuel generators, giving flexibility between gasoline and propane.
- Noise is a tie at 74 dB, expect a loud open-frame style sound.
- Champion 201284 weighs 208 lb, slightly lighter than Firman at 212 lb.
- Both include a 3-year warranty for comparable long-term coverage.
Best use cases
Choose the Firman H08051 if you want longer stretches between refueling during home backup. With 12 hours at 50% load, it is a better fit for running essentials through the evening and into the night, especially if you are trying to avoid getting up to refuel. It also makes sense for longer job site days where you want to set it up, run tools, and not think about it as often. The tradeoff is that it is still a loud, open-frame style unit at 74 dB, and at 212 lb you should plan on rolling it rather than lifting it.
Choose the Champion Power Equipment 201284 if you want essentially the same power output in a slightly lighter package at 208 lb, or if you already own Champion accessories and prefer sticking with that brand for parts familiarity and support. Its 10-hour runtime at 50% load is still solid for outage coverage and work use, just with a bit less cushion for overnight operation. Like the Firman, it is not an inverter generator, so it is better suited to tools, appliances, and general backup power than to ultra-quiet camping or the most sensitive electronics.
For RV use, either can handle heavy loads thanks to 8000 running watts, but both are louder than most campground-friendly inverter options, so they fit best for boondocking or situations where noise rules are not strict.
Verdict & recommendation
If your priority is fewer refueling stops and longer continuous coverage at a typical household load, the Firman H08051 is the more convenient choice on paper with 12 hours at 50% load. If your priority is getting nearly identical 8000 running watts and 10000 starting watts in a slightly lighter unit, or you simply prefer Champion’s lineup and find a better price, the Champion 201284 is an easy pick.
Because noise is the same at 74 dB and both are non-inverter dual-fuel models with a 3-year warranty, the practical decision usually comes down to runtime versus deal and brand preference. Choose the one that best matches how long you need to run between refuels and what you can buy confidently today.
Last updated February 27, 2026
| Specification | Firman H08051 | Champion Power Equipment 201284 |
|---|---|---|
| General | ||
| Product type | Generator | Generator |
| Fuel | Dual-Fuel | Dual-Fuel |
| Inverter | No | No |
| Parallel capable | No | No |
| RV ready | Yes | No |
| Running watts | Winner: Winner: 8000 W | Winner: Winner: 8000 W |
| Starting watts | Winner: Winner: 10000 W | Winner: Winner: 10000 W |
| Noise (lower limit) | Winner: Winner: 74 dB | Winner: Winner: 74 dB |
| Weight | 212 lbs | Winner: Winner: 208 lbs |
| Run time @50% load | Winner: Winner: 12 h | 10 h |
| Run time @25% load | Not available | Not available |
| Fuel tank | 8 gal | 7.7 gal |
| Fuel gauge | Yes | Yes |
| Approx. dimensions (L × W × H) | 30.2 x 27.5 x 26.3 | 28.7 x 28.5 x 25.8 |
| Electrical | ||
| Voltage (AC) | 120/240 | 120/240 |
| Voltage (DC) | Not available | Not available |
| GFCI outlets | Yes | Yes |
| Covered outlets | Yes | Yes |
| Automatic Voltage Regulation | Yes | Yes |
| THD | 25 % | 20 % |
| Engine | ||
| Engine | Firman Max-Pro Series OHV 4-stroke, cast iron sleeve | 458 cc OHV 4-stroke |
| Alternator | Not available | Not available |
| Starting system | Recoil, Electric | Recoil, Electric |
| Warranty | ||
| Warranty | 3 years | 3 years |
| Power by fuel | ||
| Gasoline | Not available | Not available |
| Running watts | 8000 W | 8000 W |
| Starting watts | 10000 W | 10000 W |
| Running amps (120V) | Not available | Not available |
| Running amps (240V) | Not available | Not available |
| Peak amps (120V) | Not available | Not available |
| Peak amps (240V) | Not available | Not available |
| Run time @50% load | 12 h | 10 h |
| Run time @25% load | Not available | Not available |
| Propane | Not available | Not available |
| Running watts | 7250 W | 7200 W |
| Starting watts | 9050 W | 9000 W |
| Running amps (120V) | Not available | Not available |
| Running amps (240V) | Not available | Not available |
| Peak amps (120V) | Not available | Not available |
| Peak amps (240V) | Not available | Not available |
| Run time @50% load | 5 h | 5 h |
| Run time @25% load | Not available | Not available |
| Other | ||
| Data center | Not available | Not available |
| Indicators | false | false |
| Compliance | CARB, EPA | EPA, ANSI/PGMA G300-2023 |
| Security | Not available | Not available |
| Spark arrestor | Yes | Yes |
| Neutral | Bonded to frame | Bonded to frame |
| UPC | 840876180518 | 817198026732 |
| Core / High-priority specs | ||
| Running Watts (Gasoline) | 8000 | 8000 |
| Running Watts (Propane) | 7250 | 7200 |
| Starting Watts (Gasoline) | 10000 | 10000 |
| Starting Watts (Propane) | 9050 | 9000 |
| Runtime @ 50% Load (Gasoline) | 12 | 10 |
| Runtime @ 50% Load (Propane) | 5 | 5 |
| AC Outlet Types | 1x Duplex 120V 20A (5-20R); 1x 120V 30A (L5-30R); 1x 120/240V 30A (L14-30R); 1x 120/240V 50A (14-50R) | 2x Duplex 120V 20A (5-20R) GFCI1x 120/240V 30A (L14-30R)1x 120/240V 50A (14-50R) |
| Electrical & power | ||
| Frequency | 60 | 60 |
| Engine & construction | ||
| Engine Type | OHV 4-stroke | 458 cc OHV 4-stroke |
| Engine Displacement | 439 | 458 |
| Cylinder Sleeve | Cast iron | Not available |
| Engine Oil Type | Not available | 10W-30 |
| Runtime & fuel system | ||
| Runtime @ 50% Load (Gasoline) | 12 | 10 |
| Runtime @ 50% Load (Propane) | 5 | 5 |
| Safety & compliance | ||
| Overload Protection System | Low oil and overload protection | Low oil, overload and Volt Guard surge protection |
| Low Oil Protection | Yes | Yes |
| Carbon Monoxide Monitoring | No | Yes |
| Included equipment | ||
| Mobility Components | Wheel kit | Not available |
| Starting Components | Recoil, Electric | Not available |
| Fuel Connection Components | Propane hose | Not available |
| Included Accessories | Oil, funnel, tool kit, propane hose, battery, and wheel kit | Oil, funnel, propane hose, battery, and wheel kit |
| Warranty & identification | ||
| Commercial Warranty | 3 | 3 |
| Additional specs | ||
| Summary | The Firman H08051 is an 8,000-watt dual-fuel generator built to power job sites, homes during outages, and RV setups. Running on gasoline, it delivers 8,000 watts continuously and 10,000 watts at startup, enough to run a refrigerator, microwave, and multiple power tools at once. Switch to propane and the output drops to 7,250 watts running and 9,050 watts starting, a trade-off for fuel flexibility and longer shelf life. The 439cc cast-iron engine is engineered for durability in commercial and residential use. At 212 pounds, this is a stationary or semi-portable unit, not a grab-and-go machine. | The Champion Power Equipment 201284 is an 8000-watt dual fuel portable generator equipped with an electric start and CO Shield® carbon monoxide auto shutoff system. It features a 458cc engine capable of running on either gasoline or propane, providing up to 10 hours of run time on gasoline or 5 hours on propane at 50% load. |
- Most PowerfulFirman H080518000W running
- QuietestFirman H0805174 dB
- Longest RuntimeFirman H0805112h at 50% load


