Skip to content
Skip to main content

Compare Generators Side-by-Side

Select up to 4 generators to compare specs, power output, noise levels, runtime and more. Your compare URL is shareable.

  • Champion Power Equipment 201438
  • Firman T04073
  • Model 201438
    Model 201438

    Champion Power Equipment 10,000W Tri-Fuel Generator

    10000W
    Running
    74 dB
    Noise
    View details
  • Model T04073
    Model T04073

    Firman 4,000W Tri-Fuel Generator

    4000W
    Running
    67 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
SpecificationChampion Power Equipment 201438Firman T04073
General
Product type
Generator
Generator
Fuel
Tri-Fuel
Tri-Fuel
InverterNoNo
Parallel capableNoNo
RV readyNoNo
Running watts
Winner: Winner: 10000 W
4000 W
Starting watts
Winner: Winner: 12500 W
5000 W
Noise (lower limit)
74 dB
Winner: Winner: 67 dB
Weight
231 lbs
Winner: Winner: 123.4 lbs
Run time @50% load
8 h
Winner: Winner: 12 h
Run time @25% load
Not available
14 h
Fuel tank
7.7 gal
5 gal
Fuel gaugeYesYes
Approx. dimensions (L × W × H)
29 x 28.5 x 25.8
29.8 x 27.5 x 26.1
Electrical
Voltage (AC)
120/240
120/240
Voltage (DC)
Not available
Not available
GFCI outletsYesYes
Covered outletsYesYes
Automatic Voltage RegulationYesYes
THD
20 %
11%-14% %
Engine
Engine
500 cc OHV 4-stroke
223 cc OHV 4-stroke, cast iron sleeve
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
10000 W
4000 W
Starting watts
12500 W
5000 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
8 h
14 h
Run time @25% load
Not available
Not available
Natural gasNot availableNot available
Running watts
8000 W
3200 W
Starting watts
Not available
4000 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
Not available
Not available
Run time @25% load
Not available
Not available
PropaneNot availableNot available
Running watts
9000 W
3600 W
Starting watts
11250 W
4500 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
3 h
9 h
Run time @25% load
Not available
Not available
Other
Data center
Not available
Not available
Indicators
false
true
Compliance
EPA, ANSI/PGMA G300-2023
CARB, EPA, ANSI/PGMA G300-2023
Security
Not available
Not available
Spark arrestorYesYes
Neutral
Bonded to frame
true
UPC
817198027913
840876140734
Core / High-priority specs
Running Watts (Gasoline)
10000
4000
Running Watts (Propane)
9000
3600
Running Watts (Natural Gas)
8000
3200
Starting Watts (Gasoline)
12500
5000
Starting Watts (Propane)
11250
4500
Starting Watts (Natural Gas)
Not available
4000
Runtime @ 50% Load (Gasoline)
8
14
Runtime @ 50% Load (Propane)
3
9
AC Outlet Types
2x Duplex 120V 20A (5-20R) GFCI1x 120/240V 30A (L14-30R)1x 120/240V 50A (14-50R)
1x Duplex 120V 20A (5-20R) GFCI; 1x 120V 30A (L5-30R); 1x 120/240V 30A (L14-30R)
Electrical & power
Frequency
60
60
Engine & construction
Engine Type
500 cc OHV 4-stroke
223 cc OHV 4-stroke
Engine Displacement
500
223
Cylinder Sleeve
Not available
cast iron
Engine Oil Type
10W-30
Not available
Runtime & fuel system
Runtime @ 50% Load (Gasoline)
8
14
Runtime @ 50% Load (Propane)
3
9
Safety & compliance
Overload Protection System
Low oil and overload protection
Low oil and overload protection, CO monitoring
Low Oil ProtectionYesYes
Carbon Monoxide MonitoringYesYes
Included equipment
Starting Components
Not available
Recoil, Electric
Included Accessories
Oil, funnel, natural gas hose with NPT adapter, propane hose, battery, and wheel kit
Oil, funnel, tool kit, propane hose, RV adapter, cover, battery, and wheel kit
Warranty & identification
Commercial Warranty
3
3
Additional specs
Summary
The Champion Power Equipment 201438 is a 10,000-watt Tri-Fuel portable generator equipped with CO Shield® technology, capable of operating on natural gas, propane, or gasoline.
The Firman T04073 is a 4,000-watt tri-fuel generator that runs on gasoline, propane, or natural gas. On gasoline, it delivers 5,000 starting watts and 4,000 running watts, enough to power a refrigerator, microwave, and multiple household circuits simultaneously. On propane, output drops to 3,600 running watts, and on natural gas it falls to 3,200 running watts. This fuel flexibility means users can switch between sources based on availability and cost, a significant advantage during extended outages or in remote locations where one fuel type may be scarce. The T04073 targets homeowners, RV owners, and job site operators who need reliable backup power without the commitment to a single fuel source. Its 5-gallon tank runs for 14 hours at 25% load on gasoline, translating to roughly one week of emergency backup if you run it a few hours per day. The unit includes a wheel kit, making it easier to position despite its 123.4-pound weight.
  • Most Powerful
    Champion Power Equipment 201438
    10000W running
  • Quietest
    Firman T04073
    67 dB
  • Longest Runtime
    Firman T04073
    12h at 50% load
Where to buy
Prices can change. We update these automatically.
Champion Power Equipment 201438
Store links
No links yet.
Firman T04073
Store links
No links yet.
Disclosure: Some links may be affiliate links. Specs and comparisons are never hidden.