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Firman H08051 vs Champion Power Equipment 201284

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

  • Model H08051
    Model H08051

    Firman 8,000W Dual-Fuel Generator

    8000W
    Running
    74 dB
    Noise
    View details
  • Model 201284
    Model 201284

    Champion Power Equipment 8,000W Dual-Fuel Generator

    8000W
    Running
    74 dB
    Noise
    View details
Quick charts
Each chart uses its own Y-axis scale (so numbers are comparable within a chart).
Running watts
W
Starting watts
W
Noise
dB
Runtime @50%
h
Running watts by fuel
Shows how output changes across gasoline/propane/natural gas (when available).
Generator Specifications Comparison
SpecificationFirman H08051Champion Power Equipment 201284
General
Product type
Generator
Generator
Fuel
Dual-Fuel
Dual-Fuel
InverterNoNo
Parallel capableNoNo
RV readyYesNo
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 gaugeYesYes
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 outletsYesYes
Covered outletsYesYes
Automatic Voltage RegulationYesYes
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
GasolineNot availableNot 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
PropaneNot availableNot 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 arrestorYesYes
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 ProtectionYesYes
Carbon Monoxide MonitoringNoYes
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 Powerful
    Firman H08051
    8000W running
  • Quietest
    Firman H08051
    74 dB
  • Longest Runtime
    Firman H08051
    12h at 50% load
Where to buy
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Firman H08051
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Champion Power Equipment 201284
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